Weighing computer
Manual
Parameterizing
T2
DWC-3C
H5 H6
F6
F1
>0<
F2
F5
B= 30,02 t
F3
TEST
60,00
t
/h
F4
0
2550
75
100
%
ENTER
MODE
DWC-5
DWC-5B
X3
X4
X1
X5 X8
X7
X6
X2
KUKLA Waagenfabrik
10/2004
15.12.04 3DWA170T2E.DOC Seite 2
Index
1 DESCRIPTION OF THE DIGITAL WEIGHING ELECTRONICS 7
1.1 Service module DWC-5B 7
2 INDICATION- AND ADJUSTMENT PICTURES IN NORMAL OPERATION 8
2.1 Graphic screen 8
2.1.1 Standard picture for belt scale and weigh feeder and for impact flow meter 8
2.1.2 Picture for batch weighing 9
2.1.2.1 Printer output 10
2.1.3 Picture for fleece plants 11
2.2 Text screen 1 12
2.3 Text screen 2 13
2.4 Error 13
2.5 Pre-sets/LOG 17
2.5.1 Log book 18
2.5.2 Adjustment of the clock 18
2.6 Report status 18
2.7 CONTROL 19
2.7.1 Analog measured values and system data 19
2.7.2 The analog outputs 20
2.7.3 The contact outputs 20
2.7.4 Binary- and BCD-inputs 21
2.7.5 COMMUNICATION 21
2.7.6 ANALYSIS 22
2.7.6.1 TARE 22
2.7.7 Load indication (actual load) 22
2.7.7.1 Linearization of measured value (CorrectTAB) 22
2.7.7.2 The calculating unit (PLC1(2)) 22
2.7.7.3 Result indication of the calculating unit (CV) 22
2.8 Actual parameterized (ActualParamet) 23
3 CHECK- AND MAINTENANCE MECHANISMS 24
3.1 Maintenance 24
3.1.1 Taring 24
3.1.1.1 Mean value tare 25
3.1.1.2 Absolute value tare 25
3.1.2 Checking of the weighing - and dosing accuracy 26
3.1.2.1 Material test 26
3.1.2.1.1 Material test run-off: 26
3.1.2.1.2 Material test evaluation: 27
3.1.2.2 Test load 27
3.1.2.3 Correction of area weight 29
3.1.2.3.1 Proceedings at the correction of area weight: 29
4 SPECIAL OPERATING MODES 30
15.12.04 3DWA170T2E.DOC Seite 3
4.1 Feeding control at RBW, WB or DFM as well as at DBW 30
4.1.1 3-point- step-control of the dosing device 30
4.1.2 Parameters for the 3-point-step-controller: 31
4.1.3 Feeder with control drive (control of the operating speed) 31
4.1.3.1 Parameters for the analog controller 31
4.1.4 Continuously controlled dosing device (e.g. dosing slide) 32
4.1.4.1 Parameters for the control of the dosing device: 32
4.2 Batch operation 33
4.2.1 Parameters for batch operation 33
4.3 Net load calculation at series feeding 34
4.3.1 Parameters for net calculation 35
5 THE CALCULATING UNIT 35
6 PARAMETERIZING OF THE WEIGHING COMPUTER 36
6.1 Moving into the parameterizing menus, adjustment of parameters 36
6.2 The main menu 37
6.3 The data input 38
6.4 Serial interfaces 51
6.5 CONTROL 51
6.5.1 Sources for simulation of the analog channels, of the belt load and of the speed measuring52
6.5.2 Flash-Prom 52
6.6 Kuk-Setup 53
6.6.1 SYSTEM 1 53
6.6.1.1 Mean value formings 53
6.6.1.2 Selection of the display screen (GraphScreen) 55
6.6.1.3 Multi range design 55
6.6.1.4 Batch operating mode 55
6.6.1.5 Special operating mode „FLEECE“ 56
6.6.1.6 Consideration of the material moisture 57
6.6.1.7 Linearization of the weighing channel 58
6.6.2 SYSTEM 2 58
6.6.2.1 Programmable calculating unit (PLC1/2) 58
6.6.2.1.1 Examples calculating unit: 60
6.6.2.2 Net calculation at series feeding 61
6.6.2.3 Freely usable shifting registers 62
6.6.2.4 Selection picture for fixed values, speed measuring and transfer values 62
6.6.2.4.1 Fixed values 62
6.6.2.4.2 Measuring of the plant speed via pulse generator 62
6.6.2.4.3 Transfer values 1 and 2 63
6.6.2.5 Log book 63
6.6.3 SCALE DATA 63
6.6.3.1 RATED DATA 64
6.6.3.2 LIMIT VALUES 64
6.6.3.3 Selection of the taring (taration) mode 66
6.6.3.4 Adjustments for the test with test weight 66
6.6.3.5 Error handling 67
6.6.3.5.1 The contact output „Ready to op“ 67
6.6.3.5.2 Contact output „Error“ 67
6.6.3.5.3 Error memory 68
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6.6.3.5.4 Adjustment pictures „Error“ 68
6.6.3.6 Display-Unit of capacity 68
6.6.3.7 Monitoring with pulse generator at not driven belt drum 69
6.6.4 I/O CARDS 69
6.6.4.1 Weigh channel 69
6.6.4.2 Analog input channels 1 and 2 70
6.6.4.3 Analog outputs 1 - 4 72
6.6.4.4 Binary inputs U1 - U5 74
6.6.4.5 Contact outputs 1 - 6 74
6.6.4.6 BCD-inputs 1 and 2 74
6.6.4.7 Counting pulse output 74
6.6.5 DOSING DATA 75
6.6.5.1 Limit values of the dosing function 75
6.6.5.2 Integration range 77
6.6.5.3 Sources of set value „Intern“ and „Extern“ 77
6.6.5.4 Feeder parameters 77
6.6.5.5 Adjustments for 3-point-step controller and continuous control device 77
6.6.5.6 Source of set value for the feeder 78
6.6.5.7 The weighing belt speed at taring and at the test with test weight (test load) 79
6.7 Priming charge 80
6.8 Data securing/RESET 81
6.8.1 RESET 81
6.9 Re-charge 82
6.10 Marker for the weigh channel adjustment: 82
7 TECHNICAL DATA 83
8 CATCHWORDS 85
9 PARAMETER INDEX 86
Annex
Dimension sheet DWC-3C / DWC-5B
15.12.04 3DWA170T2E.DOC Seite 5
Software indication
These instructions are based on Software version (N1) A2.00 / C2.00.
In course of the technical progress changes can be carried out at the software. At subsequent software versions therefore deviations are possible compared to these instructions.
*** SAFETY REGULATIONS ***
Being under voltage the device must not be opened. Danger of electric shock exists. Service works at the weighing equipment are permitted only for qualified personnel. In case of works at the weighing belt the drive has to be switched off.
KUKLA WAAGENFABRIK
Stefan-Fadingerstrasse 1-11
A-4840 Vöcklabruck
Tel. (0043) 07672-26666-0
Fax (0043) 07672-26666-39
Homepage: www.kukla.co.at
email: office.@kukla.co.at
5. September 2005
15.12.04 3DWA170T2E.DOC Seite 6
1 Description of the digital weighing electronics
The weighing computer is equipped with a universal-software. Thus, many different ranges of application result.
Applicability of the software-variant:
Belt scale (RBW)
Impact flow meter (DFM; with linearization)
RBW / DFM with feeder control (maximal 4 hoppers; dosing, „Integrat.range“ = 10)
RBW / DFM for batch discharge (maximal 4 hoppers)
RBW / DFM for batch discharge with feeder control
RBW / DFM in multi range design (maximal 4 ranges)
Weigh feeder (DBW = RBW with dosing and „Integrat.range“ > 10) for direct hopper discharge or with synchronous material feeding
DBW with feeder control (load control)
DBW for production of fleece
DBW for batch discharge
DBW in multi range design (maximal 4 ranges)
Loss-in-weight-feeder (DDW)
DDW for batch discharge
The applicabilities of the loss-in-weight-feeder are not included in these instructions but are described in a separate additional manual.
Via the digital and analog interfaces the hardware-connection from external pre-set- and evaluation devices and controls is possible.
For bus-systems at the DWC-3B a design with profibus-DP interface is available. At the DWC-5A this interface is standard.
The bus-system CANopen is used for data transfer within a user-group without master, whereby in addition to weighing calculators also other participants (e.g. frequency converters) are possible.
1.1 Service module DWC-5B
While at the DWC-3C the service module is installed directly, it has to be detached on the device in case of DWC-5B .
The two fastenings at the back side of the service module have to be hanged into the metal hood from above according to the instructions sticked on the housing. Only then the service module can be detached on the base device with slight pressure.
The service module may be detached on and removed during operation. Immediately after detaching a text- or graphic representation should be on the display.
In exceptional cases a manual re-set may be necessary. This is done by pressing down the switch SW6 for a period of approx. 2 seconds.
15.12.04 3DWA170T2E.DOC Seite 7
2 Indication- and adjustment pictures in normal operation
For reading the operational data, input of set values at corresponding parameterizing and for control-indications several pictures are available in normal operation.
2.1 Graphic screen
After switching on the power supply the „GraphScreen“ is represented.
At the „GraphScreen“ there are several possibilities of representation, which can be selected in the parameterizing mode in „KUK-SETUP“ under „SYSTEM 1“ at „DISPLAY“ (see page 55).
2.1.1 Standard picture for belt scale and weigh feeder and for impact flow meter
In the uppermost row symbols for information about certain operation statuses are faded-in (1-4).
1
Simulation activated
2
Error recognized
3
Load of the measuring length under
"Belt
empty" (Parameter "Belt empty", see page 64)
4
Belt drive stopped (tacho frequency below 1Hz)
5
Quantity counter "B"
Re-set to zero with key „F3“ at kept-pressed key
„F2“
6
Conveying capacity in kg(t)/h.
Alternative indication: actual load (g1) in per cent
(only if source of nominal value is at
„Sext“ )
7
Conveying capacity in per cent of final value
8
Capacity set value in per cent 1)
9
Sint 2) or Sext 3) Set value in kg/h (t/h)
Set value indication only at „DOSING“.
Sint: Source of set value "INTERNAL" is used.
Sext: Source of set value "EXTERNAL" is used.
15.12.04 3DWA170T2E.DOC Seite 8
2.1.2 Picture for batch weighing
Batch operation is possible at registration and dosing.
In the uppermost row symbols for information about certain operation statuses are faded in (1-4).
1
Simulation activated
2
Error recognized
3
Load of the measuring length under "Belt empty""
(Parameter "Belt empty", see page 64)
4
Belt drive stopped (tacho frequency below 1Hz)
5
Batch quantity counter 1)
6
Silo No. (VA0/1/2/3)
and pre-switch-off-value 2)
7
CS or CR .. batch set quantity or residual quantity 3)
8
Batch-run-off-indication (run-off-step) 4)
9
Batch set value / residual quantity in per cent
10
Conveying capacity as ramp in per cent of final value
Run-off-steps variant a):
0
Wait for Start, overtake set value.
1
Started, re-set batch quantity counter,
switch on contact outputs „Batch drive “ and „Batch mode“.
10
Batch runs.
Final condition: Batch quantity counter equal set quantity.
50
Switch off „Batch drive “ and „Batch mode“.
51
Settling time 5s.
52
Printer output (Timeout after 5s).
53
Batch step counter to 0.
1)
The batch quantity counter (6-digit, with comma 5-digit) is set to zero at batch start. At batch end printer output is done.
2)
Only at operation modes „Emptying“
and
„Fine stream“.
3)
The
switching-over from batch set quantity
(CS)
to batch residual quantity
(CR) is done at batch start. Batch (charge) set quantity is
4)
indicated at run-off-step „0“.
The step number of the batch-run-off:
There are 3 different batch-run-offs:
a) Standard batch operation with loaded weighing belt at Start and Stop.
Control output „Batch drive “.
b) Start and Stop with empty weighing belt. It is possible to work with 4 different pre-switch-off-quantities (distance to the storage
hopper).
Control by „Batch drive “ and
„Batch mode“.
c)
Batch operation with loaded weighing belt at Start and Stop, reduction of the discharge quantity before batch end (Fine
stream).
Control additional to „Batch drive “
by
„Coarse stream“ and
„Fine stream“ resp. by the analog signal „Charge
fine“.
15.12.04 3DWA170T2E.DOC Seite 9
Run-off-steps variant b):
0
Wait for Start, overtake set value.
1
Started, re-set batch quantity counter,
switch on contact outputs „Batch drive “ and „Batch mode“.
20
Batch runs.
Final condition: Batch quantity counter equal set quantity minus pre-switch-off-value (VAX).
21
Switch off „Batch mode“.
Final condition: Belt load under „Belt empty“.
22
Post-Runtime.
Final condition: Time has run down.
50
Switch off „Batch drive “.
51
Settling time 5s.
52
Printer output (Timeout after 5s).
53
Batch step counter to 0.
Run-off-steps variant c):
0
Wait for Start, overtake set value.
1
Started, re-set batch quantity counter,
switch on contact outputs „Batch drive “ and „Batch mode“.
30
„Coarse str.“
is switched on.
Batch runs.
Final condition: Batch quantity counter equal set quantity minus pre-switch-off-quantity (VAO).
„Coarse str.“
is switched off.
31
Fine stream.
„Fine stream“
is switched on.
The analog output „Charge fine“
(see page 72) runs down proportionally to the decreasing
remainder to 5% of the final value. At
„DBW“ the nominal value is decreasing proportionally to the
decreasing remainder to „Min-Set Value“.
Final condition: Counter „B“ equal set quantity.
„Fine stream“
is switched off.
50
„Batch drive “ and „Batch mode“ are switched off.
51
Settling time 5s.
52
Printer output (Timeout after 5s).
53
Batch step counter at 0.
2.1.2.1 Printer output
At charge end resp. at activating binary input „B=>0 print“ via serial interface the following output is started:
08:43:15 05.Jan.2001 B=
27,3 t
15.12.04 3DWA170T2E.DOC Seite 10
2.1.3 Picture for fleece plants
The representation of the production actual value is done in (k)g/m2 resp. in oz/sy (ounces per square yard) or in per cent, if a multiplying set value „EXTERNAL“ is active.
In the uppermost row symbols for information about certain operation statuses are faded-in (1-4).
1
Simulation activated
2
Error recognized
3
Load of the measuring length under „Belt empty“
4
Belt drive stopped (tacho frequency below 1 Hz)
5
Quantity counter „B“
Re-set to zero with key „F3“
at kept-pressed key
„F2“
6
Production value in (k)g/m2
Alternative indication: actual load (g1) in per cent
(in case of source of set value
„Sext“)
7
Conveying capacity in %
8
Capacity set value in per cent 1)
9
Sint 2) or Sext 3) set value in kg/h (t/h).
Set value indication only at „DOSING“.
Sint: The source of set value "INTERNAL" is used.
Sext: The source of set value „EXTERNAL“ is used.
15.12.04 3DWA170T2E.DOC Seite 11
2.2 Text screen 1
A=
Total quantity counter
"A"
Re-set to zero with „F3“ at kept-pressed
keys „F1 + F2“.
B=
Quantity counter "B"
Re-set to zero with key „F3“ at kept-
pressed key „F2“.
p=
Conveying capacity in per cent;
Conveying capacity in kg(t)/h.
v=
Speed of the weighing belt in %,
speed in mm/s
g=
Load of the measuring length in per cent and
load at discharge end
(g3)
Sint /
Set value in kg/h (t/h)
1)
Sext
CS / CR
batch set quantity / residual quantity and run-
off-step batch control
2)
VA0/1/2
pre-switch-off-value at batch with
/3
„Emptying“ 3)
1
At multi range design indication of the
actually effective range 4)
2
At re-calculation of the control factor
3
At „Integrat.range“ >10:control factor
Sint: The source of set value "INTERNAL" is used. Sext: The source of set value "EXTERNAL" is used.
Only at activated batch operation.
3) At „FLEECE“ the calculated productions value, at „BATCH“ the pre-switch-off-value, at net-calculation the gross load (b). 4) M0 = basic range, M1-M2-M3 are the ranges selectable via the binary inputs.
15.12.04 3DWA170T2E.DOC Seite 12
(100% 5%)
2.3 Text screen 2
F=
actual moisture measured value 5)
Sint
actual set value (= INTERN)
"Sext" = EXTERN
P3=
actual conveying capacity
P2=
Conveying capacity at point „g2"
g1=
Load of the measuring length
g2=
Load at point
„g2"
g3=
Load at point
„g3“
Sg=
Load set value 6)
Z=
%-Feeder to belt drive resp. variable at
continuously control dosing device.
Dead length counter 6) to the right
ZI
Actual position and nominal position (value at
the right) at continuously controlled dosing
device 6)
1
actual tare cell (max. 2000)
2
Control deviation in % 7)
3
admissible Minimal load (only DBW)
2.4 Error
In this picture the actual error messages are indicated. The indication „A" at the right side of the screen means „actual", the indication „M" means „stored". Stored errors can be deleted with key „F2“.
Deleting with key „F2“ is possible only if the error picture is indicated. If errors are activated, the error picture is shown automatically each 20 seconds during a period of approx. 2 seconds in the operation pictures (graphic screen and text screen).
In picture „Error“ right at the bottom a hexadecimal number is given. This hexadecimal number indicates all actually recognized errors, regardless, whether the error is considered in the error handling or not. Stored errors, which are no longer active, are not indicated!
5)tThe moisture measured value is indicated only at released dry weight calculation.
Only at activated feeder control.
Related to „RATED CAPACITY“.
15.12.04 3DWA170T2E.DOC Seite 13
Meaning of the errors and remedy in case of occurrence of errors
Fuse
(00000001)
Reason: The falling out of a fuse has been indicated to the weighing electronics from external (OPTO „Fuse").
Remedy: Check the fuses.
Drive/Tacho
(00000002)
Reason: The weighing electronics receives the message „Drive switched on", nominal value is present, but no tacho pulses can be measured.
Remedy: 1. Check, if the motor is really running.
Check, if the indication changes between 0 and 1 in figure „CONTROL" under „OPTO" at „STRINT".
Check, if the tacho is working.
Check, if the connection of wiring between weighing electronics and tacho is O.K.
If there is the tacho-pulse at the terminals X13:19/20 existing but no change between 0 and 1 to be determined in figure „CONTROL", the weighing electronics is defective.
A/D-Error
(00000004)
Reason: The measured value at the weighing channel is either less than 12.000 or greater than 60.000.
Remedy: 1. Check, if a damage can be determined at the load cell(s).
Check, if the cable connections between weighing electronics and load cell(s) is O.K.
Check supply voltage for power measuring and measuring signal: Connection 2/3: 10VDC
Connection 1/4: Measured signal, max. 20mV, 0mV at discharged load cell(s) (see test-protocol).
Overheat
(00000008):
Reason:
The temperature inside the weighing electronics is too high (admissible max. temperature
is 68°C).
Remedy:
Provide for lower ambient temperature (max. approx. 40°C).
15.12.04 3DWA170T2E.DOC Seite 14
Speed
(00000010):
Reason: The drive system is not adjusted optimally. Thus, the precision regulator cannot keep the nominal dosing capacity.
Remedy: Correct adjustment of the motor-controller.
If there is a rotational number feedback 0-10VDC to the motor controller via frequency-converter on the I/O-card1, check resp. correct the adjustment of the frequency-converter. (Trimmer „f0" = 0V, trimmer „f" = 10V on the I/O-card 1. „f0" = 0V at motor-standstill, „f" = 10V at maximal motor speed).
At AC-motors with frequency converters the rotational number must be linear to the master value.
Feeder limit.
(00000020):
Reason:
At feeder control the measuring distance load cannot meet the adjusted load set value (at
belt scale with feeder control the adjusted nominal capacity) with the adjusted limit values
„Min-Limit“ and „Max-Limit“ .
Remedy:
Improve feeder-adaptation.
Mis-Run
(00000040):
Reason:
The belt monitoring signals an uncentric running of the weighing belt.
Remedy:
Check the belt steering device, adjust belt to centric running.
Min Load
(00000080):
Reason:
At a weigh feeder the belt load required for keeping the dosing capacity (according to the
set value) only hardly can be achieved.
Remedy:
Provide for a higher material discharge. If the lower material feeding is due to changed
material characteristics, a re-adjustment of the material feeding may be necessary.
Max Load
(00000100):
Reason:
The weighing belt is overloaded.
Remedy:
Provide for a lower material discharge. If the heavier material feeding is due to changed
material characteristics, a re-adjustment of the material feeding may be necessary.
At a belt scale the weighing range (rated capacity) is set too low.
Belt slip
(00000200):
Reason:
1. At existence of a control pulse generator the control pulses do not come or come too
late.
At the design with „Absolute value tare“ the synchronizing pulse does not come or
comes too late.
Remedy: A torn weighing belt might also be the reason for „Belt slip“. If the belt does not really slip, at design „Absolute value tare“ also the synchronizing mark might be fallen off.
Test wrong
(00000400):
Reason:
At the test with test weight the desired number 1000 was not achieved by more than the
permitted tolerance (+/- 1%).
Remedy:
Check the scale, make taration, repeat the test.
Taration err.
(00000800):
Reason:
1.
During taration an inadmissible measured value was supplied by the weighing bridge
(A/D-error resp. deviation of „WC-OFFSET“ higher than „Taration
err.“,
page 66)
2.
The taration
was cut short before the regular end.
Remedy:
Check/clean the scale, repeat taration .
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3DWA170T2E.DOC
Seite 15
Belt stopped
(00001000):
Reason:
No tacho pulses arrive
(drive switched off).
Remedy:
If the message comes at running belt, check tacho for proper function.
Also see „Drive/Tacho".
Bad Set Value
(00002000):
Reason:
The dosing capacity set value is not within the permitted range.
Admissible range:
Smaller than „SetValueNull" and „MinSet Value" up to 102% of „Rated
capacity“.
Remedy:
Provide for correct set value. At set value higher than 102% limiting to 102% is done.
Belt empty
(00004000):
Reason:
The belt load is smaller than the limit value „Belt empty“.
Deviation
(00008000):
.Reason:
Due to a minor belt load or due to an error in the drive system the nominal dosing capacity
cannot be kept. The deviation is higher than the adjusted tolerance (tolerance related to
the rated capacity of the scale).
Remedy:
1. Weigh feeder.
Provide for sufficient weighing material on the weighing belt. Check the drive system at
sufficiently loaded scale (minimal load is the percentage indicated quite right in the row of
„g3“ in text screen 2).
2. Belt scale with feeder control.
Improve feeder adaptation.
ProgrammFLASH
(00010000):
Reason:
The parameterizing level was left after a changing of parameters without data securing.
Remedy:
Switch into the parameterizing mode (switch at the back wall of the device) and leave
parameterizing mode with data securing.
ParameterInp.
(00040000):
Reason:
The monitoring device of RAM and EEPROM has responded.
Remedy:
Carry out priming charge and re-adjust parameters.
Data lost
(00020000):
Reason: The parameters were re-charged from the EEPROM.
15.12.04 3DWA170T2E.DOC Seite 16
2.5 Pre-sets/LOG
In this picture several set values can be changed, the data sets registered in the „Log book“ can be read and the clock can be adjusted. The pre-sets are offered only if at the parameterizing a corresponding adjustment had been chosen. The maximal input value is 50.000, in case of per cent values 150,0%. If the %-pre-set is used for a quantity pre-set (e.g. batch set value), the highest variable of 150,0(%) corresponds to the number 15.000. In case of employment of the quantity pre-set for a per cent adjustment the variable 15.000 corresponds to a per cent number of 150,0. Values higher than 15.000 must not be adjusted in case of use of the quantity adjustment for a per cent pre-set.
Transfer value (TransValue1(2))
If „Pre set 1(2)“ or „%Pre set1(2)“ is adjusted as source for the transfer value, the variable can be described under „Pre-sets/LOG“.
Batch set value (ChargeIntern / ChargeExtern)
Display pre-selection of batch discharge quantity.
Working width
Display input of the real working width, if no automatical actual-value-signalling is done.
In case of a variable working width always a working width has to be measured or adjusted!
Capacity set value (Cap.set value)
Display-set value adjustment for capacity set value (kg(t)/h, xx * Disp.+/-). Also the binary inputs
„Mot.Poti +“ and „Mot.Poti -“ access to set value „Disp.+/-“ (see page 47).
Nominal load
Display-load set value at feeder control.
MOISTURE
The measured value of the load of the measuring length is reduced by the %-value adjusted here (dry weight calculation).
BATCH
1. Batch-termination before the regular end:
In picture „BATCH“ with key „ENTER“ the residual set value can be adjusted to „0“, if the selection-arrow is at „Break batch“. Thus, if not „Emptying“ is adjusted, the batch discharge is terminated at once. If „Emptying“ is activated, the contact „Batch mode“ switches off at once and the usual emptying process follows.
2. Pre-switch-off-quantity:
At batch-operation-mode variant b) (with Emptying, see page 10) the scale can be fed from different hoppers. In order to keep the batch set quantity as exact as possible, the weighing electronics needs the indication of the material quantity, which is on the way between hopper discharge and scale at 100% capacity.
It is possible to adjust 4 different material quantities (distances). Via the binary inputs „Select 1“ and „Select 2“ the weighing electronics has to be informed which pre-switch-off-quantity has to be used.
Input value
Binary contact
Silo
PreSwitchOff 0
-
1
PreSwitchOff 1
Select 1
2
PreSwitchOff 2
Select 2
3
PreSwitchOff 3
Select 1
+ Select 2
4
The proportion of „PreSwitchOff 1-3“ to „PreSwitchOff 0“ is taken into consideration for the dead length at feeder control.
At batch-operation-mode variant c) (see page 10) at the residual quantity a switch over to „Fine stream“ is done, which corresponds to the adjustment of „PreSwitchOff 0“.
15.12.04 3DWA170T2E.DOC Seite 17
2.5.1 Log book
The log book can be activated in the parameterizing. About 6000 data sets can be stored. The storage is always carried out with date and time.
The following activities can be stored:
Taring with tare mean value
Test load with test result
Material test with factor of correction (1000 = no correction)
Area weight test with factor of correction(1000 = no correction)
Leaving of parameterizing mode with check sum „RA“ and „FP“
Always stored are:
Cold start with indication, which type of scale had been charge. V = 1 (Belt scale)
V = 3 (Weigh feeder)
Data loss with indication, how often re-charging has been carried out.
When the log book is called, always the latest registration is indicated. With key „F2“ it is possible to switch to the registration before. With key „F1“ the next higher registration is achieved. After actuating key „F3“ the data set counter runs to registration No. 1.
2.5.2 Adjustment of the clock
Change of adjustments with keys „F1“ (+) and „F2“ (-). At kept-pressed key the speed of adjustment is increasing.
The changeable position is marked by a cursor. The cursor is adjusted with key „F3“ (also see page 51).
2.6 Report status
For purpose of test the analog input channels AD1 and AD2, the load of the scale and the speed of the weighing belt can be replaced by a simulated value.
For the impact flow meter always a simulated speed is used.
The sources for the simulation can be adjusted in the parameterizing mode under „CONTROL“ (see page ..). In picture „Report status“ activated simulations with the adjusted per-cent-values are indicated. Symbol „S“ in the symbol ledge of „GraphScreen“ shows that a simulation is activated.
15.12.04 3DWA170T2E.DOC Seite 18
2.7 CONTROL
CONTROL
AD/SYS
DA Relay
OPTO/BCD
COMMUNICATION
ANALYSIS
== exit <F4>==
Under „CONTROL“ actual measured values, signal statuses, output values and internal information can be read.
Selection picture „CONTROL“.
2.7.1 Analog measured values and system data
WC = Measured value weighing channel and percentage of the net
load (calculated considering „WC-OFFSET“)
Minimal value: 15.000
Maximal value: 55.000
= Percentile correction of the working span („SPAN 100%“) compared to „SICHAD“ and the working span (the working
AD1
span is changed at area weight).
= Measured value analog channel 1 and percentage of the
AD2
signal
= Measured value analog channel 2 and percentage of the
Temp
signal
= Temperature inside the device in °C
NC
= Number of the automatic parameter re-charges carried-out.
KT
Is deleted at cold start.
= Test of keys. Hexadecimal number of pressed key(s).
F1 = 8
F2 = 4
F3 = 2
F4 = 10
F5 = 20
F6 = 40
PA = 80
ENTER = 1
At simultaneous pressing of several keys the HEX-sum is indicated.
Examples: F6
+ ENTER
=
41
F1
+ F2
=
c
AD/SYS
WC= 25260 17.3% S= 100.0 % 30000 AD1= 12 0.0% AD2= 12 0.0% Temp= 43 C
NC= 0
KT=80 20000 256 1763
RA=1482 FP=1482
In the row of „KT“ in square brackets the value deposited in the tare memory is indicated
Both at absolute value tare and at mean value tare max. 2000 tare values are deposited per belt revolution and are indicated here at running belt
At mean value tare the mean value of the deposited tare values is used. This tare mean value can be read under „ANALYSIS“ in picture „TARE“.
Beneath two numbers are indicated.
The left number shows the WC-measured value less tare. At net load calculation ( series feeding, see page 33) also the net calculation has already been taken into consideration.
The right number indicates the number of the actual tare cell. At achieving the tare cell with the highest number the tare cell number is recorded.
SYNC stops the counter, at belt slip monitoring therefore the counting mostly is terminated before achieving the highest tare cell!
RA
=
Check sum RAM-memory
FP
=
Check sum EEPROM-memory
The RA-check sum is made and stored at leaving the parameterizing mode, the FP-check sum after „Data securing“.
Both check sums are unequal, if after a change of parameters no data securing has been carried out (Error message „programmFLASH.“).
15.12.04 3DWA170T2E.DOC Seite 19
2.7.2 The analog outputs
DA **0800** DA1= 76% DA2= 36.8 % DA3= 45.2 % DA4= 76.2 %
tFIFO 0 123
== exit <F4>==
the parameterizing (see page 72).
Actual output values of the analog output channels 1 - 4.
The retardation-run and the output value is indicated by the shifting register „t-FIFO“ (100% = 10.000)
The number in row 2 is an internal information.
In the standard adjustment is put out:
DA1
=
Actual capacity
DA2
=
Variable for belt drive
DA3
=
Variable for feeder
DA4
=
Actual capacity
The adjustments of the DA-channels 1-4 can be chosen differently at
The DA-channel 1 has a lower resolution (8-Bit) than the other DA-channels (DA2 - 4 = 10-Bit).
2.7.3 The contact outputs
Relay
TICK= 0 K1= 1 K2= 0 K3= 0 K4= 1
K5= 0 00000913 K6= 0 59d90087
== exit <F4>==
The hexadecimal number in the row of relays are also indicated):
Example:
913 = 800 + 100 + 10 + 2 + 1
Actual switch position of the contact outputs 1-6 and of the counting pulse output („TICK“).
Standard adjustment of the contact outputs:
K1
=
Ready to operate
K2
=
Error
K3
=
Belt load under the Min-Limit-value
K4
=
Feeder release
K5
=
Charge relay
K6
= Lay on test weight
„K5“ informs about the activated outputs (outputs not occupied by
1
=
Error
1000
=
Max at point „g1“
2
=
Ready to operate
2000
=
Field relay 1
4
=
Silo discharge ON at charge
4000
=
Field relay 2
8
=
Feeder ON
8000
=
Control deviation
10
=
MIN at point
„g3“
10000
=
Coarse stream
20
=
MAX at point
„g3“
20000
=
Fine stream
40
=
Lay on test weight
40000
=
Belt stopped
80
=
Test/Tare runs
80000
=
Direction feeder
(see page 31)
100
=
Belt empty
100000
=
Feeder OPEN (3-point-step)
200
=
Belt slip
200000
=
Feeder CLOSED
(3-point-step)
400
=
Scale ON at charge
800
=
MIN at point
„g1“
In the row of „K6“ an internal information is put out.
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2.7.4 Binary- and BCD-inputs
OPTO/BCD
STRINT=
1
SYNC
=
0
0
U1=
0
BCD1= 1010
U2=
1
BCD2= 2020
U3=
0
S1=
10000
U4=
0
S2=
10000
U5=
1
00000020
LoSpeTach 0
==
exit <F4>==
Actual signal status at the binary inputs. Possibly adjusted invertings are not considered.
Consider the indication values „BCD1/2“ if factor 10 or 0,1 is parameterized.
„S1(2)“ inform about the composition of the multiplying set values. Both values 10.000 each are set value 100%.
At variable working width adjustment, however, the set value is reduced in the ratio „Belt width“ to „Working width“.
S1 = First value of set value forming (e.g. A/D1)
S2 = Second value of set value forming (e.g BCD1)
STRINT = Pulse inlet digital tacho
SYNC = Control pulse inlet
To his right the adjustment (0-3) decided by the OPTOS „Selection 1(2)“
Standard adjustment of the binary inputs:
U1= Motor fault
U2= Belt runs
U3= Set value switching-over INTERNAL/EXTERNAL
U4= Delete errors
U5= free
„U5“ is an internal marker but no binary input (also see page 74).
The hexadecimal number in the row of „U5“ indicates the activated binary functions.
1
=
Start Tare
1000
=
Emptying
2
=
EXTERNAL (Cap. set value)
2000
=
Display set value +
4
=
free
4000
=
Display set value -
8
=
Mis-run (weighing belt)
8000
=
Printer output and zero-setting of counter „B“
10
=
Belt runs
10000
=
Charge set value EXTERNAL
20
=
not occupied (free)
20000
=
Select 1 (Charge with
„Emptying“ resp. „Multi
range design“)
40
=
Delete errors
40000
=
Select 2 (Charge with
„Emptying“ resp. „Multi
range design“)
80
=
Motor fault
80000
=
Charge with Fine stream
100
=
Fuse defective
100000
=
Load measuring with moisture correction
200
=
Enable regulations
200000
=
Low Speed Tat
400
=
Start batch
400000
=
Control contact shifting register „t-FIFO“
800
=
Break batch
2.7.5 COMMUNICATION
COMMUNICATION
Profibus1
Profibus2 COM 1
SdoReadTermina
SdoWriteTermin
Selection of the pictures for supervision of the data transfers. Description see separate manual.
== exit <F4>==
15.12.04 3DWA170T2E.DOC Seite 21
2.7.6 ANALYSIS
ANALYSIS TARE
Actual load LinearTAB
PLC1
PLC2
CV
== exit <F4>==
Selection picture for inspection of the graphic representations, of the calculations in the freely programmable calculating unit and of the results of the calculating unit.
2.7.6.1 TARE
After calling „TARE“ a graphic representation of the measured values at taration appears.
Disconnected line
=
WC OFFSET
Curve
= measured tare values
Connected line
=
mean tare values
At „WC-OFFSET“ = tare value and minor tare fluctuation only one line is visible.
The vertical line, moving from left to right, shows the movement of the belt. The circle at the line shows the actual measured value.
The screen represented by points has a vertical partition of 5 % of the load of the measuring length. Horizontal the profile of the belt revolution is distributed over the screen width.
At mean value tare the line - due to missing synchronizing - is not identical with the measuring length.
The number upper right in the picture is the tare mean value.
At the bottom left in the picture the number of the used tare cells is indicated.
2.7.7 Load indication (actual load)
The measured values in the discharge shifting register are represented. The resolution at the screen is 10% (vertical).
The three vertical lines signify the points „g1“, „g2“ and „g3“ from left to right.
2.7.7.1 Linearization of measured value (CorrectTAB)
If the detection of the weight measured value is not linear (e.g. at a flow meter) a linearization can be carried out (see page 58)..
The horizontal line indicates the working point.
The vertical line indicates how much the measured value is deviating from the ideal course. Upper left the value (%) measured at the weighing channel is indicated.
The percentage beneath is the value corrected by the linearization which is used in reality. Upper right the actual percentile correction is indicated.
2.7.7.2 The calculating unit (PLC1(2))
The function of the calculating unit can be observed.
A change of the formula(s) is possible only in the parameterizing mode (see page 58).
2.7.7.3 Result indication of the calculating unit (CV)
The results of the calculations („CV0“ up to „CV5“) are indicated. Additional the Long-values „RL0“ and „RL1“.
15.12.04 3DWA170T2E.DOC Seite 22
2.8 Actual parameterized (ActualParamet)
After calling this menu point the complete parameter adjustment can be scanned step by step with key „ENTER“ or key „F1“.
The picture before can be achieved with key „F2“.
At kept pressed key the speed of scanning is increasing.
With key „F6“ the dosing data can be achieved from any position.
Key „F4“ effects the immediate exit from parameter scanning into the menu „MODE“.
Via interface „COM 1“ the adjustment of parameters is put out, if key „F3“ is pressed. Also a parallel output at the display is given.
Find indications for software version in picture 1.
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3 Check- and maintenance mechanisms
3.1 Maintenance
In order to ensure an exact and troublefree operation of the weighing device, the periodical works described in the mechanic instructions (cleaning etc.) are to be carried in any case.
Additionally it is necessary to check the scales after periods of operation to be stipulated and to check by means of test with test load.
A test with test load before cleaning and taring informs about changes of the scale’s tare caused by pollution etc. since the last check/taring. This shows if the maintenance works are carried out in sufficient intervals.
3.1.1 Taring
At taring maximal 2000 measured values in tare cells are stored during one belt revolution. If the number of tacho pulses during one belt revolution is greater than 2000, automatically a pre-divisor for the number of the tacho pulses per each tare cell is determined.
If the tare of the scale is not o.k., the quantity registered by the scale is deviating form the actual value. Thereby has to be taken into account that e.g. in case of a tare 3% and a load of the scale of approx. 60% the measuring error is 5%.
At „RBW / WB“ the drive has to be switched on at taring process!
At the impact flow meter (DFM) the taring also works without binary input „Belt runs“.
If the log book is activated, a registration, when the scale has been tared, is done. Thereby also the tare mean value is stored (also see page 18).
At the taring process weigh feeders run with the parameterized speed for tare and test (see page 79). A capacity set value is not necessary.
If at the start the weight „g3“ is not below the limit value „Belt empty“, during the display „EMPTY THE SCALE“ still the normal process is run. To ensure that the weighing belt runs, then a set value has to exist.
The taring process is started either by an external command or by key Taste >0< (F6) at the DWC-3-device. The real taring process does not start before „Belt empty“ is recognized. If the scale is not empty, after 2 belt revolutions the operation picture re-appears. In this case no taring has taken place.
The checking „Belt empty“ is done first after the discharge shifting register at point „g3“. If this value is below the limit value „Belt empty“, the checking of the direct measured value „g1“, whereby, however, not the latest tare value is used for determining the net measured value, but the calibration value „WC-OFFSET“. Thus it is ensured, that the tare value cannot gradually take higher values.
If the scale does not recognize „Belt empty“ in spite of an empty weighing belt, there might be the following reasons:
The weighing belt is extremely polluted or damaged.
The weighing belt does not run centric (failure of the steering device, „Mis-Run“)
A new, heavier weighing belt has been drawn-up
The alignment of the measuring length is not o.k.
The rollers resp. slide-bars are polluted or the slide-bars are worn out extremely
The load cell(s) is (are) defective
At the DFM (impact flow meter) in the conveying system a pseudo measured value may arise caused by blast
15.12.04 3DWA170T2E.DOC Seite 24
The scale has to be checked and the failure is to be eliminated. If a heavier weighing belt was drawn up, a re-adjustment of the tare-compensation or of parameter „WC-OFFSET“ has to be done.
In picture „EMPTY THE SCALE!“ it is possible to enforce the taring with key „F1“.
If the measured value is deviating by more than the parameter „Taration Err.“ from the value „WC-OFFSET“ (+/-) during the taring process, after taring the error „Taration Err.“ appears.
In case of „A/D-Error“ during the taring process the taring process is interrupted at once. Additionally the error message „A/D-Error“ appears.
At taring maximal 2000 measured values of the signal of the scale are stated during one belt revolution.
At normal operation at „mean value“ the mean value of these measured values is deducted from the measured value of the scale.
At normal operation at „absolute value“ the deduction of tare is done by the memorized measured values synchronously with the belt run. A „synchronizing label“ ensures that the memorized measured values a re used for the corresponding belt segment. „Absolute value“ therefore is possible only if a „synchronizing label“ is integrated in the weighing belt.
Absolute tare ensures that even in case of minor net load of the scale only minimal tare fluctuations are arising.
In picture „CONTROL“ (see page 18) the tare values can be read.
The run-off of the taring process is depending on the programming „mean value tare“ or „absolute value tare“.
The kind of taring is selected at the parameters (see page 66).
3.1.1.1 Mean value tare
The taring process runs off in following steps:
EMPTY THE SCALE! (only if the scale does not recognize „empty“ at taring-start).
SettlingTime (5 seconds)
Storing of the measured values (one belt revolution).
3.1.1.2 Absolute value tare
The taring process runs off in following steps:
EMPTY THE SCALE! (only if the scale does not recognize „empty“ at taring-start).
Wait for SYNC
Calibr.of belt (one belt revolution).
Storing of the tare-measured values (one belt revolution).
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3.1.2 Checking of the weighing - and dosing accuracy
The weighing- and dosing precision of the scale can be checked best by material specimen with a biggest possible quantity of weighing material under normal operating conditions. The material specimen should correspond at least to 200 counting steps at the quantity counter of the weighing electronics.
Prior to precision-tests the scale should be tared.
There are special facilities for easier checking resp. correction (TEST).
If the log book is activated, a registration is done, when and which kind of test has been carried out. If a correction is carried out due to a deviation, a registration is done, how big the change at the weighing channel caused by the correction has been. (see page 18).
3.1.2.1 Material test
With the material test device it is possible to check the scale with 10-fold counter resolution.
Negative measured values are deducted at the material test (until „0“). A negative result is not possible.
At the material test the weight „g1“ is measured.
At „Integrat.range“ >10 also during the material test the normal dosing process is running. Therefore- just as in normal operation - a capacity set value is needed.
At the end of the material test the scale can be calibrated by input of the actual weight of the material specimen. Due to the calibration also the per cent value for the test weight is changed. Thus, the calibration has no effect on the result of test with test weight.
If the parameters changed at the correction after the material test shall be taken into the safety memory, after the correction a data securing has to be done (data securing see page 81).
The material test can be started at empty or at loaded weighing belt.
At termination of the material test, however, the load of the weighing belt has to correspond to the state at the start, if not, a deviation between measured quantity and registered quantity is arising due to the different load value.
The counters „A“ and „B“ and the counting pulse output are blocked during material test. The D/A-channels continue to work in normal way.
If net load calculation (see page 34) or moisture correction (see page 57) is activated, this special function is switched off at the material test. At activated net load calculation the material test has to be started always with empty weighing belt.
3.1.2.1.1 Material test run-off:
Provide material specimen with at least 50-fold quantity of the counting step in normal operation (=500-counting steps at material test).
Start of material test at the weighing electronics.
Press key „TEST“ . Selection picture „TEST“ appears.
Start material test with key „F1“. Picture „MAT-TEST“ appears. The counters „A“ and „B“ and the counting pulse output are blocked.
If the material test is not selected within 10 s, the test screen is left.
Switch on weighing belt and convey the material specimen. Thereby must be considered, that the indication „g1“ possibly is in the usual load range (approx. 50-80%).
If the material specimen has run through, stop the conveying belt.
15.12.04 3DWA170T2E.DOC Seite 26
3.1.2.1.2 Material test evaluation:
Press key „F4“. The text „RE-WEIGHING ?“ appears. The counters „A“ and „B“ and the counting pulse output are released again.
At a test quantity less than 100 counting steps the test routine is left after approx. 10 seconds, an evaluation is not possible.
Re-weigh conveyed material specimen.
Overwrite the proposal value (= the value measured by the scale) with the actual value of the material specimen.
Press key „ENTER“ (key „F4“ leaves the material test without correction).
The material test permits a correction corresponding to the adjustment at the parameter „Lim.of correc.“. If the limit of correction or the WC-measuring range were exceeded due to the
correction, no correction is possible. The error message „Lim.of
correc.“ resp.
„A/D-
Error“ appears. The change is rejected and the original value is indicated.
If the correction is possible, in row two the percentage of the correction is faded-in
The correction at the material test changes the parameters „SICHAD“
and „SPAN 100%“
and the
reference value for the test weight („Test weight xx.x%“).
With key „F4“ „Material test“ is left.
Without pressing key „F4“ the material test is terminated self-acting after approx. 20 s.
3.1.2.2 Test load
If the scale was adjusted by material weighings, subsequently mostly a test with the test weight is sufficient. Only if bigger changes have been carried out (e.g. re-newing of the weighing belt) in any case the keeping of the tolerance should be checked by the material test.
At the test load the scale must be , the weighing belt must be running. The counters „A“ and „B“ and the counting pulse output are blocked at test load.
At the „DFM“ the test load also works without binary input „Belt runs“.
At the weigh feeder the weighing belt runs with the parameterized speed for TARE and Test. A capacity set value is not necessary.
If the load „g3“ at the start of the test load is not below the limiting value „K_0“, during the display „EMPTY THE SCALE!“ the usual process is still running. For the running of the weighing belt at the weigh feeder a capacity set value must be present then.
During the test load the operation counters are blocked (not at „EMPTY THE SCALE!“!).
Proceedings at the test load:
1. Press key „TEST“ and start test load with key „F3“.
If the message „EMPTY THE SCALE!“ appears, the TARE of the scale is not o.k. The test must be stopped (key „F4“), the scale is to be checked and tared.
After two belt revolutions at „EMPTY THE SCALE!“ the test load is stopped automatically.
If „LAY ON TESTW.!“ is indicated, lay on the test weight (sometimes the test weight consists of two weights, which have to be laid on left and right at the weighing bridge).
If a motoric lay-on-device for the test weight is existing, the test weight is laid on by pressing key e „ENTER“ .
2. When the load by the test weight achieves approx. 60% of the test weight parameter, the display changes to „SettlingTime“. The settling time is approx. 10 seconds.
The test load is running.
While the test is running, the load value with test weight is indicated („g1“). „Cell no“ informs about the progress of the test run.
15.12.04 3DWA170T2E.DOC Seite 27
„End at“ indicates, at which cell number the test is finished (one belt revolution; maximal 2000).
Evaluation.
If „Cell no“ achieves the number of „End at“, the evaluation is done.
Faded-in is:
Test o.k. at 1000
RESULT !xxxx!
The result informs about the measuring accuracy of the scale. If the deviation is greater than the admissible tolerance limit and within the correction limits (standard adjustment = 5%), a correction with key „F1“ (+) can be carried out.
The messages „Lim.of correc.“ and „A/D-Error“ indicate, when a correction is not possible due to a too great deviation.
If at the test load a deviation greater than the admissible tolerance limit (1%) is measured, the test is to be repeated with key „F3“.
Only if several test loads in succession supply the same result being above the tolerance limit and if it sure, that the deviation determined at the test is not caused by a failure of the scale, the possibility of correction with key „F1“ may be used.
Possible reasons of a too great deviation, which have to be abolished before correction:
Pollution of weighing roller(s), measuring bar resp. of measuring length limiting.
Pollution of the weighing belt or mis-run of the weighing belt
Damage at the weighing belt
Material sediments on the test weight (in case of built-in test weight)
Not correctly laid-on test weight(s)
Not correctly adjusted material guiding. The material guiding must not inhibit the scale.
Terminate test load.
If the test weight is lifted (in case of motoric test load with key „ENTER“), after falling short under the limiting value „K_0“ the scale returns to normal operating. The operating picture re-appears.
15.12.04 3DWA170T2E.DOC Seite 28
3.1.2.3 Correction of area weight
The correction of area weight is provided for compensating - especially at the weighing bar - measuring errors which occur in case of manufacturing of different materials.
At the correction the working span („SPAN 100%“) is changed. Thereby a limiting to 50% up to 200% compared to „BASIC AD“ is installed („Lim.of correc.“) resp. the weighing channel limiting values must not be achieved („A/D-Error“).
The correction of area-weight is deleted at material test and test load.
At weigh feeders the correction of area weight can be used to compensate immediately dosing errors, which are arising during production caused by pollution.
Losses occurring during production, however, can also be compensated by deliberated wrong dosing.
Attention!
The additional dosing for compensation of production losses is not registered by the scale at compensation via correction of area-weight!
Therefore we recommend to compensate losses caused by production by a higher adjustment of set value.
3.1.2.3.1 Proceedings at the correction of area weight:
Input of area weight correction is possible also during running process. While the picture of area weight correction is faded-in on the display, the scale continues to work normally..
1. Start correction of area weight:
Press key „TEST“ and select correction of area weight with key „F2“.
In the display „Set quantity“ and the adjusted area set value are indicated. If the pre-set is not carried out via thumb wheel or BUS-connection in „g/m2“, „oz/sy“ or „%“, „10000“ is proposed. This value can be changed to the area weight set value if the correction shall not be done in „%“.
Input of correction value: Press key „F4“ .
Input picture „RE-WEIGHING“ appears.
The indicated value corresponds to the value in picture „Set quantity“.
Change the indicated value to the really measured actual weight. Adjust the percentage of the deviation at the indication „10000“ (at e.g. 10% too heavy actual weight „11000“, at 10% too light actual weight „9000“).
If the number is adjusted correctly, transfer it to „ACT“ key „ENTER“. This is only possible if the value of „RE-WEIGHING“ is between 50% and 200% of „Set quantity“.
Carry out correction and leave correction of area weight: Press key „F4“.
The indication „CORR Span“ informs about the percentage of the correction carried out at the load measuring of the scale.
If the correction would change „SPAN 100%“ compared to „BASIC AD“ to less than 50% or greater than 200%, no correction is carried out. The message „Lim.of correc.“appears.
If „SPAN 100%“ would be adjusted to a value greater than 60 000, no correction is carried out, too. The message „A/D-Error“ appears.
Press key „F4“ .
The usual operating picture is faded-in again.
15.12.04 3DWA170T2E.DOC Seite 29
4 Modos especiales de operación.
4.1 Control de alimentación a RBW, WB o DFM como tambien a DBW
El agregado de alimentación puede ser controlado a través señal analógica o vía conexión-BUS. También hay , salidas para la unidad de un operador de motor a través de contacto inversor (usar solo como „Integrat.range“ =10) o a través de una unidad de cuatro cuadrantes (con el controlador de motor adicional) disponible.
Un RBW, DFM y WB con velocidad de transporte constante a „TYPE SCALE“ „DOSING“ y en „Integrat.range“ =10 tiene que ser ajustado.
El control es ajustado para salida constante (P1).
Para la preselección de la producción nominal de transporte se ofrece una selección (ver página 78).
Un RBW y WB con la velocidad de transporte controlado (DBW) y un dispositivo adicional de dosificación „DOSING“ y un „Integrat.range“ > 10 (prestar atención a los datos tecnicos! Debe ser ajustado.
El valor medido „g1“se mantiene constante.
Para la preselección de la carga nominal se ofrece una selección (ver pagina 78).
El valor de la carga ajustado (Sg) es indicado en „Text screen 2“ en la tercer línea de la parte inferior.
Atencion: Para el correcto funcionamiento del control del valor fijo de carga, tiene que ser ajustado. A través de un ajuste del modulo de servicio la entrada se realizaría abajo. „Pre-sets/LOG“ en pantalla „Nominal load“. El valor de carga fija ideal depende de „Integrat.range“ (ver pagina 38). El ajuste debería ser aproximado al valor de carga, lo cual es admisible debido a la gama de integración para el valor de la carga medida.
Ejemplos:
Rango de integracion
Rango de cargas admisible
Valor fijo de la carga
30 X/10
33.3 - 100%
65%
20 X/10
50 - 100%
75%
4.1.1 Paso de control de 3 puntos del dispositivo de dosificación.
Este tipo de control es únicamente usado para el control de salida en el diseño con „Integrat.range“ = 10 .
La dirección del dispositivo de ajuste es echo a través contactos de salidas (Relay, ver pagina 48)
Feeder-OPEN y
Feeder-CLOSE
Para despejar en „FEEDER 1“ (ver página 44 y página 77)
active
or
active >MIN
Tiene que ser parametrizado.
DeadLength“
determina, que distancia de transporte se esta agotando, antes que un nuevo pulso de control se apague.
„DeadLength“ comienza a correr al final del pulso de control.
El Contador de longitud muerta se libera, si „Belt runs“ es activado y si en „active“ también el binario „Enable regu“ esta encendido.
A „active >MIN“ adicionalmente a la salida binaria „Belt runs“ el valor de medida debe ser mayor que „Feeder free“.
Si no se cumplen las condiciones para la liberacion, el contador de distancia muerta es ajustado al maximo valor y ningún pulso de control es apagado.
15.12.04 3DWA170T2E.DOC Seite 30
4.1.2 Parametros para controlador de paso de 3 puntos:
FEEDER1:
DeadLength
Determina el tiempo de espera después de cada pulso de control.
Se escala con „Rated speed“
Feeder free
Valor de carga, en las que el controlador esta bloqueado en „active > MIN“.
active
Activación del controlador (regulador) a través de entradas binarias „Enable regu“ y
„Belt runs“ (ambos deben estar activados).
active > MIN
Activacion del regulador de carga a traves de „Feeder free“.
FEEDER2:
Steptime100%
Distancia del controlador de pulso, si es 100% valor establecido es el valor real 0% t.
150 corresponde a 10 segundos.
Feeder Area
Porcentaje de la desviacion, en las que ningun controlador de pulso a sido puesto fuera o apagado.
El porcentaje esta relacionado al parametro „Nom. capacity“ .
Relay:
Feeder-OPEN
Dispositivo de dosificacion de salida superior.
Feeder-ZU
Dispositivo de dosificacion de salida baja.
OPTO IN:
Enable regu
Activacion del regulador, si „FEEDER1“ „active“ es ajustado.
4.1.3 Alimentador con unidad de control (control de la velocidad de operación)
Conveniente para el control de la produccion y de la carga (el control de carga por DBW).
Para dispositivos de dosificación que pueden ser controlados a través de señal analógica o a traves de conexión BUS, concerniente a su capacidad de descarga (control de velocidad), la variable
FeedSetVal.
esta disponilble.
Condiciones para la liberacion (activar/permitiendo) como un controlador de paso de 3 puntos.
La variable „FeedSetVal.“ es re-calculada y apagada siempre despues de acabar el recorrido de la distancia muerta del control lanzado.
Si las condiciones para la liberacion no han sido completadas, el contador de distancia muerta es mantenido a un máximo valor y la variable „FeedSetVal.“ es mantenido con el ajuste seleccionado en „Funct. at off“
4.1.3.1 Parámetros para el control analógico.
FEEDER1:
Min-Limit
Limitacion de la variable hacia abajo (en DBW en porcentaje de la unidad de transporte).
Max-Limit
Limitacion de la variable hacia arriba (en DBW en porcentaje de la unidad de transporte).
DeadLength
Determina el tiempo de espera despues de cada re-calculacion de la salida.
Calculado con „Rated speed“
Readj.fact.
El cambio de la variable calculada debido a la desviación de control puede ser reducida
(importante en caso de comportamiento no lineal del dispositivo de dosificacion, como.
e.g. a traves de vibracion)
Funct. at off
de las 3 posibilidades
Last value
MEAN VALUE
and
Outp.setval
en
„DBW“ el ajuste „MEAN VALUE“ es el mas adecuado.
En cuanto a los otros diseños „Outp.setval“ es recomendado.
Feeder free
valor medido de carga, en el que en „active >MIN“ el controlador
(regulador) se libera.
active
Habilitacion del regulador a traves de la entrada binaria „Enable regu“.
active >MIN
Habilitacion del regulador a traves de „Feeder free“.
D/A-Channel:
FeedSetVal.
Variable para el dispositivo de dosificacion.
OPTO IN:
Enable regu
Habilitacion del regulador, si en „FEEDER1“ „active“ es adjustado.
15.12.04 3DWA170T2E.DOC Seite 31
4.1.4 Dispositivo dosificación de controlador continuo. (e.g. dosificador deslizable)
Adecuado para el control de salida y control de carga (control de carga en DBW).
Dispositivo de ajuste de dosificación con actuador motorizado- también puede ser ajustado continuamente via 4-quadrant motor controlling device. En caso de una existente posicion o syncho,tambien debe ser ajustado continuamente a traves de un dispositivo de control de cuatro cuadrantes
La electrónica del pesaje entrega una variable para (FeederDevia) y una salida de contacto reverso al sentido de las manesillas del reloj (FD-directi.).el control también puede ser conexión BUS.
La variable calculada para el dispositivo de dosificación por el regulador (Feeder SW) es comparada conel valor actual entregado por la respuesta sincro y el controlador continuo.
A una señal binaria perdida „Belt runs“ el dispositivo de dosificacion es cerrado.
Si „Belt runs“ es encendido, el regulador suelta o libera, sin embargo, si es apagado, el dispositivo de dosificación es ajustado al valor proveido en „Funct. at off“.
La posicion del dispositivo de dosificacion y la posicion del valor fijo estan indicados en la pantalla de texto 2 inferior. „ZI“ (ver pagina 13).
Debido a la seleccion de una Fuente del valor actual para la posicion de respuesta sincrona de function de control para el control continuo del dispositivo de dosificacion y en la pantalla de texto 2 el display „ZI“ esta activado.
Y una salida de contacto reverse al sentido de rotacion
4.1.4.1 Parametros para el control del dispositivo de dosificación:
FEEDER1:
Min-Limit
Limitación del ajuste bajo del dispositivo de dosificación. (a DBW en porcentaje de la unidad de transporte).
Max-Limit
Limitación del ajuste superior del dispositivo de dosificación (a DBW en porcentaje
de la unidad de transporte ).
DeadLength
Determina el periodo de espera despues de cada re-calculacion del valor fijo para la posición del dispositivo de dosificacion.
.
Escalar con „Rated speed“
Readj.fact.
El cambio del valor fijo para el dispositivo de dosificacion calculado debido al control de desviación puede ser reducido (importante un no compartimiento línea del dispositivo (como e.g. a atrave de la vibración.
Funct. at off
De las 3 posibilidades
Last value
MEAN VALUE
and
Outp.setval
A
„Integrat.range“ >10 el ajuste; „MEAN VALUE“ es mas el mas
Adsesible..
Para los otro diseños „Outp.setval“ es recomendale..
Feeder free
Cambiar por el mismo valor medido, a un „active >MIN“ el
regullador es liberado.
active
Liberacion del regulador por entrada binaria „Enable regu“.
active >MIN
Liberacion del regulador por „Feeder free“.
FEEDER2:
FeederActVal
Para la posicion de respuesta del dispositivo de dosificacion, de las posibilidades ofrecidas las siguientes pueden ser usadas:
BCD 1(2)
Profibus1(2)
Pre set 1(2)
%Pre set1(2)
A/D 1(2)
Steptime100%
Sin funcionamiento
Feeder Area
Valor porcentual de desviacion, bajo cual no ajuste del dispostivo de
dosificación esta echo.
El valor porcentual esta relacionado al parámetro. „Nom. capacity“ .
Relay:
FD-directi.
Contacto abajo-contact para el sentido de rotación del actuador al dispositivo de dosificación.
OPTO IN:
Enable regu
Liberación del regulador, si es „FEEDER1“ „active“ ajustado.
D/A Channel:
FeederDevia
Velocidad fija para la velocidad del actuador del valor fijo.
15.12.04 3DWA170T2E.DOC Seite 32
4.2 Operacion Lote.
Lote/carga operación mayormente usadas entre la dosificación de respuesta con el control de alimentación.
Tambien, con los alimentadores de peso („Integrat.range“ >10) modo operación lote acorde a la variante a) o c) puede ser activada.
La busqueda para el valor fijo de descarga son selecccionables (ver pagina 46).
La descarga puede ser llevada de tres maneras diferentes:
Variante a): Lote-comenzar y finalizar con la cinta de pesaje cargada.
En orden de prevenir grandes desviaciones en la descarga – especialmente en caso de pequeñas cantidades de carga – entre lo grabado y cantidad de descarga. Es requerido que la escala tenga la misma cinta de carga , en la descarga al principio y al final.
Correr los pasos del control lote acorde a la variante. a) ver pagina 9.
Variante b): Lote –comienza y -final con cinta de pesaje vacia.
Si la alimentacion de la escala es realizada a traves de dispositivo de descarga de silo, la escala puede estar vacia después de cada lote. En orden de evitar una gran cantidad de carga donde el valor fijo ajustado deba pesar el material despues del apagado de la descaga del silo, bajo „Pre- sets/LOG“ en el sub menu „BATCH“ a „PreSwitchOff0“ la cantidad del peso del material subsecuentemente al 100% de capacidad de transporte, debe ser ajustado.
Si la operacion lote trabaja acorde a la variante b), en el OPTO’s „Emptying“ tiene que ser activado (en casi de operacion exclusiva con cinta de pesaje vacia después del lote „U5“ puede usarse ). Con la ayuda de OPTO’s „Select 1 y 2“ todo junto 4 diferentes distancias a las tolvas de alimentacion pueden ser consideradas. Tambien hay 4 posibilidades de entrada para el la cantidad despues de carrera. („PreSwitchOff0-3“) están disponibles.
Correr todos los paso del control de lote acorde a la variante b) ver pagina 10.
Variante c): Lote de comienzo y final con cinta de pesaje cargada, con fino control de transmisión al final.
Con alimentadores de peso con rango de integracion>10 from the switch-over-point to Fine stream a reduccion continua de la capacidad del valor de carga fija al valor fijo de „Min-Set value“ toma lugar.
Un cinta escala con pesaje controlable o DFM con alimentador controlable el valor fijo para la transmisión de la misma, ( respuesta por los alimentadores en el DFM.) es reducido continuamente desde el switch de buena transmisión por el alimentador 5% (DA,Channel „Charge fine“).
Una cinta con pesaje controlable o un DFM con alimentacion controlable, el valor mayor para la direccion de cinta (responsable para la alimentacion del DFM) es reducido continuamente desde el switch-over-point hacia Fine stream to 5% (DA-Channel „Charge fine“).
El switch-over-point to Fine stream es determinado por „PreSwitchOff0“.
Si la cinta escala o el alimentador del DFM tiene una direccion con velocidad reversible con las salidas binarias „Coarse str.“ y „Fine stream“ una reduccion de la descarga desde el switch-over-point hacia Fine stream on puede estar realizado.
Corriendo los pasos del lote de control acorde a la variante c) ver pagina 10.
4.2.1 Parametros para operacion lote.
CHARGE:
ChargeIntern
Seleccion de la busqueda del valor fijo para operacion lote.
ChargeExtern
Seleccion para una segunda busqueda del valor fijo..
Post-Runtime
Despues del tiempo de corrida de la cinta de pesaje en modo de operacion „Emptying“.
OPTO IN:
Start batch
Comienzo de descarga de lote.
Break batch
Parada de operacion lote (el valor fijo residual es configurado en cero).
Emptying
Activacion de operacion en modo „Emptying“.
Select 1(2)
Seleccion de silo y operacion en modo „Emptying“.“ (maximo 4 silos).
ChargeExter
Dejar la busqueda en valor fijo „ChargeExtern“.
RELAY:
Batch drive
Iniciar el comando para la escala (y transporte hacia y hasta el final “ with
emptying“).
Batch mode
Iniciar comando para descarga de silo „with emptying“.
Coarse str.
Only at Coarse - Fine stream control.
Fine stream
Only at Coarse - Fine stream control.
D/A-Channel:
Charge fine
Variable para direccion de la cinta de pesaje (resp. conveying drive at
DFM) at design with continuous Fine stream reduction.
15.12.04 3DWA170T2E.DOC Seite 33
4.3 Calculo de la red de carga de las series de alimentación.
En caso de muchos puntos de alimentación que converjan en la cita, el valor de medida de cada punto de alimentación puede ser evaluado con la ayuda del “calculo de la red de carga”.
Para engrosar el valor de medida con la escala, la cual es arreglada después de preceder el punto de alimentacion, tiene que ser deducido desde el valor de carga de la escala.
Es importante que el calculo de red sea llevado en el tiempo correcto. Por lo tanto la señal usada para el calculo de red tiene que estar retrasado con la ayuda del registrador de cambio
„t-FIFO“ o „s-FIFO“ sea en las salidas o antes de la aplicacion.
Cual busqueda es usada para calculo de red, tiene que ser ajustada en „KUK-SETUP“ bajo „SYSTEM 2“ at „Sub-g“ (ver pagina 61).
Con el diseño sin serial de acoplamiento la deduccion normalmente es realiazada a traves de señal analogica. Si la balanza es proveida con un serial de acoplamiento, la deduccion es realizada a traves de conexion bus. En el acoplamiento profibus „Profibus“ tiene que ser ajustado.
En caso de acoplamiento con CanBus la operacion es leer en la descripcion CanBus.
Ejemplos de calculo neto:
Primera escala
second scale
Measured value
Gross-g
s(t)-FIFO
Output
Input
Sub-g
Primera escala
Segunda escala
Measured value
Gross-g
Output
Input
s(t)-FIFO
Sub-g
Acoplando a traves de señal analogica en caso de en caso de los rangos nominales desiguales de las dos escalas, una adaptación con la ayuda del ajuste AD puede ser realizado. De este modo es para considerar que „AD-SPAN“ pero solo puede ser ajustado a valores entre 2000 y maximo 3000 minus OFFSET, en orden de evitar un valor de calculo sobre el flujo.
Si la posibilidad „AD-SPAN“ no es suficiente – respuesta al acoplamiento BUS – la adaptacion puede ser echa con la ayuda de la unidad de calculo (ver pagina 60). El acoplamiento Profibus tambien una adaptacion a traves del BUS-Master es posible.
Si el cambio de registro „s-FIFO“ es usado, el bucle de retardo se fija con „g2-Length“ . De este modo „g3-length“ debe tener por lo menos el valor de „g2-length“.
El valor medido „Gross-g“ corresponde al valor medido de la escala sin tener en cuenta el calculo de la carga neta y sin corrección de la humedad.
En „Text screen 1“ el valor medido bruto esta representado en la fila mas baja („b“).
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„PLC1“ and „PLC2“ maximally 6 calculation results
4.3.1 Parametros para el calculo neto
SYSTEM 2:
Sub-g (FIFO)
La seleccion de Fuente para el valor de deduccion
s-FIFO
Recta controlando corte registro de desplazamiento(g2-Length)
t-FIFO
Tiempo de registro de desplazamiento controlado
tFIFO Time
el tiempo de retardo en el tiempo de registro de desplazamiento controlado
CALC1 / 2
La adaptacion en caso de diferentes rangos normales de escalas, en su caso esto no es posible a través de
„AD-SPAN“
BELT DATA
g2-Length
Bucle de retardo para el corte controlado.
g3-Length
Retardo de descarga, deben ajustarse al menos tan largo como
g2-Length
OPTO IN:
t-FIFO
Entrada de control para el registro de los cambios controlados por tiempo.
5 La unidad de calculo
Los cálculos pueden ser hechos con la ayuda de ambas páginas.
Los resultados „RL0“ y „RL1“ están destinados para visualización de los resultados provisionales excediendo el rango numérico de 32 .000.
La unidad de cálculo trabaja de forma similar al PLC. Descripción en la página 58.
ATENCION:
La unidad de cálculo no trabaja en modo parametrizado, i.e. no se llevan a cabo las operaciones de cálculo. En caso de interrogación „CV“ bajo „CONTROL“ entonces solo valores antiguos son indicados, que se calcularon en el modo de funcionamiento normal.
15.12.04 3DWA170T2E.DOC Seite 35
6 Parametrizacion del equipo de pesaje.
Todas las funciones del equipo de pesaje son determinados por parametros. El ajuste de los parámetros es realizado en la parte de atras del dispositivo, el interruptor de parametrización se ajusta al alza (position „PA).
Atencion:
En caso de una interrupcion de la tension de alimentacion durante la parametrizacion de los antiguos parametros, pueden ser re- cargada desde la EEPROM cuando la tensión de alimentación retorne!
Todos los ajustes son realizados con el teclado de la unidad frontal.
En caso de que el Profibus DP este ocupado la conexion alternative, la carga de los parámetros mas importantes a través de la calculadora primordial es posible.
Los ajustes indican a los parámetros que les corresponde el ajuste para el „WEIGH FEEDER“ despues „Priming charge“ (Cold start). Los ajustes para el „BELT SCALE“ son diferentes al de „WEIGH FEEDER“.
„Priming charge“ ver pagina 79.
Atencion:
Los ajustes „Pre set 1(2)“ y el „%Pre set1(2)“ puede ser utilizado solo una vez para las varias posibilidades de valores de ajuste!
Aplicacion posible de las entradas a traves del modulo de servicio („Pre-sets/LOG“) en:
Valor de ajuste de la capacidad
„INTERN“ y
„EXTERN“ (ver desde pagina 41)
Valor establecido por lotes „ChargeIntern“
y „ChargeExtern“ (ver pagina 46)
„Nominal load“
En control del alimentador
(ver pagina 44)
„MOISTURE“ (ver pagina 57)
„TransValue1(2)“ (ver pagina 63)
„g(v)-SIMU“ (ver pagina 52)
„Working width“ (ver pagina 56)
Navegando en los menus de parametrizacion
Llamada de los submenús y ajustes alternativos con la tecla „F3“.
La flecha en el margen izquierda de la pantalla se mueve hacia abajo con la tecla „F3“. A partir de la ultima fila de las flechas re-salta a la primera línea con la tecla „F3“.
En el menú, a los ajustes selecciones (e.g. the language version) con tecla „ENTER“ el ajuste marcado por la flecha en el margen izquierdo de la pantalla se activa.
El ajuste activado se indica en el bloque ( ) a la izquierda al lado del texto.
Ajustes de los numeros de marcado con el cursor.
En caso de los numeros con teclas „F1“ (+) y „F2“ (-) la figura marcada con el cursor se puede ajustar.
El cursor (debajo de la figura) se mueve a la izquierda con la telca „F3“. De la cifra mas a la izquierda el cursor se re-salta a la caja de la unidad con la tecla „F3“.
El re-ajuste de la cantidad tiene que ser transferido a „ACT“ con la tecla „ENTER“ para ser efectivo.
El color de entrada „MAX“ y „MIN“ informa sobre la posible gama de ajuste.
3. El ajuste de números sin cursor de marcaje.
En estos numeros el ajuste se realiza solo con los botones „F1“ (+) y „F2“ (-). Al mantener la Tecla presionada la velocidad de ajuste incrementa.
Este tipo de ajuste es una function solo en la media del valor conformados en la imagen „ITG - AD/DA“, en la tabla de corrección (ver pagina 58) y en el ajuste del reloj. Aqui una modificacion en el reglaje no necesita ser confirmada por „ENTER“.
15.12.04 3DWA170T2E.DOC Seite 36
6.2 Menu Principal
If the parameterizing switch is switched upwards, while the normal operating picture (GraphScreen) is indicated, the main menu appears on the display.
With „Priming charge“ in the main menu the base adjustment is fixed in case of readjustment.
Priming charge for belt scale:
F6 + F2
Priming charge for weigh feeder:
F6 + F3
„Priming charge“ always is possible in parameterizing mode!
The correct proceeding for priming charge is described on page 79.
MAINMENUE----
Language
User language
Data input
COMMUNICATION
CONTROL ActualParamet -KUK-SETUP-
== exit <F4>==
In the main menu the language adjustments and the sub menus „Data input“, „COMMUNICATION“, „CONTROL“, „ActualParamet“ and „KUK-SETUP“ can be called.
First the language version desired is adjusted. Thereby there are separate adjustments for the operating level and for the parameters.
The language versions available are marked by a code in the software indication (Nx).
Language block 1
(N1):
Parameter:
Operating level:
Deutsch
Deutsch
English
English
Francaise
Francaise
Italiano
Italiano
Espanol
Espanol
P CCK (russisch)
P CCK (russisch)
Nederlands
Further language versions will be available later on.
If key „MODE“ is pressed, „DATA SECURING“ and leaving of the parameterizing level is offered (see page 81).
If „ActualParamet“ is called, the parameters can be leafed through (and printed out), just as in selection „MODE“ (see page 23).
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6.3 The data input
The switching-on to the next parameter is done with key „F4“, also there, where the indication in the lowest row is not mentioned.
There is no re-jump to a previous parameter possible.
TYPE SCALE
RBW / WB
DFM
DOSING
The first figure indicates, if the weighing computer is provided for registration, dosing or for an impact flow meter..
The weighing beam can be employed for registration, with feeder control or as weigh feeder .
At belt scale, weighing beam or impact flow meter with feeder control also „DOSING“ is to be adjusted.
== exit <F4>==
Without „DOSING“ the parameter „Integrat.range“ is not offered.
Integrat.range
30
X/10
ACT
^
30
X/10
MAX
100
MIN
10
== exit <F4>==
Tarat.mode
MEAN VALUE
ABSOLUTE TARE
== exit <F4>==
Nom. capacity
12000 kg/h
^
ACT 12000 kg/h MAX10000000
MIN 0
== exit <F4>==
With this parameter it is fixed, in which range at dosing the speed of the weighing belt is readjusted in case of a change of the belt load.
The actual belt load is shown by the per cent value „g“ in the text screen. „Integrat.range“ = 30 means, that the value „g“ may be between 33.3% and 100%. At adjustment 40 e.g. „g“ may be between 25% and 100%.
At belt scale resp. impact flow meter with feeder control „Integrat.range“ is adjusted to 10 (no speed control).
The value indicated in the technical data of the scale must not be changed..
Normally the TARE MEAN VALUE is used at belt scales one belt revolution).
At minor net load of the weighing belt - and if a high short time accuracy is required - the ABSOLUTE TARE is used.
At „ABSOLUTE TARE“ a synchronizing-pulse-pick-up and a belt-label at the weighing belt are required.“
Scaling of the scale (measuring range). The indication always is done in kg/h.
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Rated speed
5000
mm/10s
^
ACT
5000
MAX
65000
MIN
1
== exit <F4>==
Rated freque.
1000 Hz
^
ACT
1000
Hz
MAX
2000
MIN
10
== exit <F4>==
Belt length
4000 mm
^
ACT
4000
mm
MAX10000000
MIN
10
== exit <F4>==
Scaling2
1000
^
ACT 10000
MAX 100000
MIN 10
== exit <F4>==
Scaling1
10000
^
ACT
1000
MAX
100000
MIN
0
==
exit <F4>==
Speed of material conveying at maximal motor speed (the tacho delivers „Rated freque.“),resp. the velocity of fall at the flow meter (DFM)
Serves for calculation of the lengths „g2-Length“ („P2 Capacity“), „g3-Length“ (discharge delay) and „DeadLength“ (feeder control).
At MEAN VALUE TARE also for fixing the line interrupts per tare cell and the number of the tare cells. AT ABSOLUTE TARE the line interrupts of a belt revolution are determined at the proceeding „Calibration“, which takes place before each taring.
At „Integrat.range“ > 10 indication of the pulse tacho frequency at maximal speed of the drive motor. The maximal speed of the drive motor is achieved at set value equal „Nom. capacity“ and minimal admissible value of „g“.
At flow meter and belt scale without tacho always 100 Hz.
Endless length of the weighing belt. The parameter serves for calculation of the required duration at MEAN VALUE TARE and test load.
Imaginary length at the impact flow meter (DFM).
At set values, which are determined by multiplications (e.g. „A/D1*BCD1“) the second value is fixed with „Scaling2“ to 100% (at „A/D1*BCD1“ the input „BCD1“).
The indication at „FLEECE“ is also scaled with this parameter.
Exceptions are the set values „A/D1*A/D2“ and „A/D1(2)*%1“, which are scaled with „Scaling3“ (see page 56).
At set values, which are determined by multiplications (e.g. „A/D1*BCD1“), the first value is fixed with „Scaling1“ to 100% (at A/D 100% = 10 000).
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g2-Length
0
mm
ACT
^
0
mm
MAX
65000
MIN
0
== exit <F4>==
g3-Length
10
mm
ACT
^
10
mm
MAX
65000
MIN
0
== exit <F4>==
TestWeight TW
Value
in
per
mille
75.0%
= 750
750
MAX
^
120.0%
MIN
10.0%
==
exit <F4>==
SETUP
NO
YES
==
exit <F4>==
Determination of the point, at which the capacity „P2“ is calculated.
If shifting register„s-FIFO“ is used, the delay loop is fixed with „g2-Length“.
May maximally have the value of „g3-Length“.
Discharge delay. The parameter determines the length, after which the load measured at the measuring length is used for evaluation (registration and dosing).
Determines, to which percentage of the measured value of weight the test weight is corresponding..
If after a material test a correction is carried out, an automatical re-calculation of the parameter is done. After a material test with subsequent correction therefore always a data securing should be cone at the end.
„YES“ has to be selected, if at the previous parameters a change has been carried out.
The following parameters are re-adjusted at „SETUP“ :
Indication unit of capacity:
Indication unit of counting:
up to
199.9 kg/h=
0.1
kg/h
up to
2999 kg/h=
0.1
kg
200 -
1999
kg/h
=
1
kg/h
3.00 -
29.99
t/h
=
1
kg
2.00 -
19.99
t/h
= 0.010
t/h
30.00
- 299.9
t/h
=
10
kg (.01t)
20.00
- 199.9
t/h
= 0.100
t/h
300 -
2999
t/h
=
100
kg
(0.1t)
200.0
- 10000
t/h
= 1.000
t/h
3000 -
10000
t/h
=
1
t
(1.0t)
The adjustments calculated at „SETUP“ can be changed in „KUK-SETUP“. It is, however, not meaningful, to choose too high resolutions.
15.12.04 3DWA170T2E.DOC Seite 40
The limiting value „Min-Load“:
The adjustment is done to the minimal value for „g“ indicated at „Integrat.range“ plus a safety reserve of 5%.
The limiting value „Control lim“:
The adjustment is done to the minimal value for „g“ indicated at „Integrat.range“.
The limiting value „Taration Err.“:
The adjustment is done to 50% of parameter „TestWeight TW“. This ensures, that the laying-on of the test weight during taration is recognized as „Taration Err.“.
The feeder-limiting value „Min-Limit“:
The adjustment depends on parameter „Integrat.range“.
„Integrat.range“ = 10:
Adjustment = 20%, „Funct. at off“ = „Outp.setval“
„Integrat.range“ = >10:
Adjustment = 50%, „Funct. at off“ = „MEAN VALUE“
Min Load Value
in per mille 38.3% = 333
383
^
MAX
100.0%
MIN
0.0%
==
exit <F4>==
INTERN <F3> Display
<ENTER>
Display
== exit <F4>==
The limiting value „Min Load“ can be changed here or in „KUK-SETUP“ (see page 64).
Selection of source of set value „INTERN“.
With „F3“ in row 3 the possible adjustments are offered successively.
With key „ENTER“ the desired source of set value is transferred to row 7 and thus effective.
At the sources of set value „INTERN“ the indication „g/m2“ etc. is not possible.
But the analog output „Scaling2“ also here delivers the production-actual value at multiplied set value („g/m2“ etc.). At not multiplied set value the analog output „Scaling2“ is zero.
Display
As source of set value the adjustment „Cap.set value“ under „Pre-sets/ LOG“ in selection MODE of the normal operating mode is used.
100% set value at:
„Cap.set value“ = „Nom. capacity“
Disp.+/-
Like „Display“, but the adjustment can also be changed via the binary inputs „Mot.Poti +/-“
(see page
47).
100% set value at:
„Cap.set value“ = „Nom. capacity“
BCD 1(2)
The data inputs „BCD 1“ resp. „BCD 2“
(see page 74) are used as source of set value.
100% set value at:
„BCD 1(2)“ = „Nom. capacity“
BCD 1*BCD 2
15.12.04
3DWA170T2E.DOC
Seite 41
The set value is calculated by multiplication of „BCD 1“ and
„BCD 2“.
Set value
=
„Nom. capacity“ (100%) at:
„BCD 1“
=
„Scaling1“ and
„BCD 2“
=
„Scaling2“.
A/D 1(2)
The analog inputs
„A/D 1“
resp. „A/D 2“ (see page 55)
are used as source of set value.
Set value
=
„Nom. capacity“ (100%) at:
„A/D 1(2)“
=
100%
A/D 1(2)*Disp.+/-
The set value is calculated by multiplication of analog input
„A/D 1(2)“
and of the adjustment at „Pre set“.
Set value
=
„Nom. capacity“ (100%) at:
„A/D 1(2)“
=
100%
„Cap.set value“
=
„Scaling2“
„Scaling1“
=
10 000
Attention: „Cap.set value“ is limited with „Nom. capacity“.
A/D 1*A/D 2
The set value is calculated by multiplication of the analog inputs „A/D 1“
and „A/D 2“.
Set value
=
„Nom. capacity“ (100%) at:
„A/D 1“
=
100%
„A/D 2“
=
100%
„Scaling1(2)“
=
10 000
A/D 1(2)*BCD 1(2)
The set value is calculated by multiplication of the analog input „A/D 1(2)“
and of the adjustment at the input
„BCD 1(2)“.
Set value
=
„Nom. capacity“ (100%) at:
„A/D 1(2)“
=
100%
„BCD 1(2)“
=
„Scaling2
„Scaling1“
=
10 000
ProfibusDP
The set value delivered by the Profibus-connection is used.
Set value
=
„Nom. capacity“ (100%) at:
„ProfibusDP“
=
„Nom. capacity“
ProfibusDP %
The Profibus-connection delivers a percentage.
Set value
=
„Nom. capacity“ (100%) at:
„ProfibusDP %“
=
10 000
A/D 1(2) * V1
The set value is calculated by multiplication of analog input „A/D 1(2)“
and adjustment „INTERN“ resp.
„EXTERN“ under „Pre-sets/LOG“.
Set value
=
„Nom. capacity“ (100%) at:
„A/D 1(2)“
=
100%
„INTERN/EXT.“
=
„Scaling2“
15.12.04 3DWA170T2E.DOC Seite 42
A/D 1(2) * %1
The set value is calculated by multiplication of analog input „A/D 1(2)“ and adjustment „INTERN“
resp.
„EXTERN“ under „Pre-sets/LOG“.
Set value
=
„Nom. capacity“ (100%) at:
„A/D 1(2)“
=
100%
„INTERN/EXT.“
=
100%
„Scaling1(2)“
=
10 000
A/D 1(2) * T1
The set value is calculated by multiplication of analog input„A/D 1(2)“
and the value of
„TransValue1“ .
Set value
=
„Nom. capacity“ (100%) at:
„A/D 1(2)“
=
100%
„Transfer1“
=
„Scaling2“
„Scaling1“
=
10 000
CV 0
The calculating value
„CV 0“ is used as set value.
The calculating value - at corresponding adjustment - is formed in the two calculating modules „PLC1“
resp.
„PLC2“ (see page 58).
Set value
=
„Nom. capacity“ (100%) at:
„CV 0“
=
„Scaling1“
CV 0 * CV 1
The set value is calculated by multiplication of „CV 0“ and
„CV 1“.
Set value
=
„Nom. capacity“ (100%) at:
„CV 0“
=
„Scaling1“
„CV 1“
=
„Scaling2“
A/D 1(2) * CV 0(1)
The set value is calculated by multiplication of analog input
„A/D 1(2)“
and the value of
„CV 0(1)“.
Set value
=
„Nom. capacity“ (100%) at:
„A/D 1(2)“
=
100%
„CV 0(1)“
=
„Scaling2“
„Scaling1“
=
10 000
EXTERN <F3> BCD 1
<ENTER>
BCD 1
== exit <F4>==
At „EXTERN“ the same adjustments of set value are possible as at „INTERN“.
At the adjustment „g/m2“ etc. at „Area weight“ and „FLEECE“ at „DISPLAY“ (see page 56/57) the indication in the graphic screen is done in „g/m2“ etc. (see page 11).
15.12.04 3DWA170T2E.DOC Seite 43
FEEDER 1
Min-Limit Max-Limit DeadLength Readj.fact. Funct. at off Feeder free
not activeactive active > MIN
Funct. at off
DeadLength
At a weigh feeder with controlled feeder „active“ or „active > MIN“ has to be adjusted.
active
The feeder control works if the binary input „Enable regu“ is activated.
active > MIN
The feeder control works if the load of the measuring length (g1) is greater than the limiting value „Feeder free“ (see page 45).
If the feeder is activated, subsequently the parameters
and
as well as the selection picture for the source of load set value are offered.
Nominal load <F3>
not active
<ENTER>
not active
==
exit <F4>==
Min-Limit
Value
in
per
mille
50.0%
= 500
500
MAX
^
120.0%
MIN
10.0%
==
exit <F4>==
Max-Limit
Value
in
per
mille
100.0%
= 1000
1000
MAX
^
120.0%
MIN
0.0%
== exit <F4>==
Of the sources offered only the following ones are reasonable for „Nominal load“:
BCD 1(2)
Profibus1(2)
%Pre set1(2)
%FixedVal
A/D 1(2)
CV 0(1-3)
Can be called in picture „FEEDER 1“.
At „DOSING“ and „Integrat.range“ >10 the feeder variable always is put out proportionally to the weighing belt variable
If the load of the measuring length does not correspond to the „Nominal load“ adjusted, the feeder regulator changes the ratio between weighing belt variable and feeder variable.
„Min-Limit“ limits the ratio between weighing belt variable and feeder variable downwards.
Can be called in picture„FEEDER 1“.
Like „Min-Limit“, but limiting the ration between weighing belt variable and feeder variable upwards.
15.12.04 3DWA170T2E.DOC Seite 44
DeadLength
1000
mm
ACT
^
1000
MAX
30000
MIN
0
== exit <F4>==
Can be called in picture „FEEDER 1“.
The feeder regulator always carries out a re-calculation after run-down of the dead length.
At „DOSING“ and „Integrat.range“ = 10 the feeder variable is calculated.
At „DOSING“ and „Integrat.range“ > 10 (weigh feeder) the ratio between weighing belt variable and feeder variable is calculated.
In order to avoid an overswing of the control, the latest correction for the feeder at the load of the measuring length must be fully effective, before another calculation is carried out.
Adjustment for „DeadLength“:
Distance feeder to limiting of the measuring length in discharge-direction, plus approx. 10%. For a more exact averaging of the weighing signal „DeadLength“ has to be adjusted correspondingly longer.
Readj.fact.
Value
in per
mille
100.0%
= 1000
1000
^
MAX
100.0%
MIN
10.0%
== exit <F4>==
Funct. at off
Last value MEAN VALUE
Outp.setval 1)
== exit <F4>==
Feeder free Value
in per mille 30.0% = 300
300
^
MAX
100.0%
MIN
10.0%
==
exit <F4>==
Can be called in picture „FEEDER 1“.
At adjustment 100% at each control process the whole control deviation reduced. If the feeder does not behave linearly to the feeder variable (e.g. a conveying trough), an improvement of the control behaviour can be achieved by a reduction of the readjustment factor.
Can be selected in picture „FEEDER 1“.
In case of missing feeder release in the standard adjustment the ratio for the feeder variable is set to the MEAN VALUE between „Min-Limit“ and „Max-Limit“ (e.g. at 50% and 100% to 75%).
Alternatively the keeping of the latest calculated ratio is possible.
If feeder control is activated, after the picture „FEEDER“ the parameters „Funct. at off“, „DeadLength“ and the selection picture „Nominal load“ for the source of set value of the load control are offered for adjustment.
Can be selected in picture „FEEDER 1“.
If in picture „FEEDER“ „active > MIN“ is adjusted, the feeder control at a load of the measuring length (g1) greater than the value adjusted here is released.
1) Nur bei „DOSIERUNG“ und „Integrat.range“ = 10.
15.12.04 3DWA170T2E.DOC Seite 45
ChargeIntern <F3>
not active
<ENTER>not active
== exit <F4>==
For batch operation two sources of set values can be used. the source „ChargeIntern“ is activated, if the binary input „ChargeExtern“ is not activated.
Only the sources mentioned in the following are suitable for „Charge“:
BCD 1(2)
A/D 1(2)
Maximal adjustment
value 99990 (in case of
100% Analog signal = maximal 20 000 (Scaling by
adjustment of „*10“
(see page 74).
„Scaling1“).
Profibus1(2)
Pre set 1(2)
Maximal pre-set-value 65 000.
Maximal adjustment value 50 000.
FixedVal
CV 0(1-3)
Maximal adjustment value 50 000
ChargeExtern <F3>
not active
<ENTER>
not active
== exit <F4>==
OPTO
IN
1-5
<+>1
<->
Fault
motor
ENTER>
U1
Fault motor
U2
Belt runs
U3
INTERN/EXT.
U4
Delete err.
U5
----free
The source of batch set value „ChargeExtern“ is activated by binary input „ChargeExtern“.
Possible sources as described at „ChargeIntern“ .
Adjustment of the binary inputs „U1 - U4“ and of the internal marker „U5“. Which of the adjustments shall be treated, is adjusted with key „+“ in row two (1 - 5).
With key „-“ beside the channel number the sign „x“ (inverting) is switched on/off. The possible functions for the binary inputs are selected with key „F3“ in row three.
If „x“ is switched on, at the transfer of the adjustment for the binary channel with key „ENTER“ also the inverting is switched on.
The marker „U5“ makes possible the permanent connection of a function. The inverting thereby must not be used.
The hexadecimal number in figure „CONTROL“ under „OPTO“ (see page 21) indicates the activated OPTO-functions.
Possible functions of the binary inputs:
>0< Start
(00000001)
A taring process is started.
INTERN/EXT.(00000002)
Switching-over of the source of set value for the dosing-capacity (see page 77).
15.12.04 3DWA170T2E.DOC Seite 46
Mis-Run(00000008)
Message from the monitoring device at the conveying belt (normal active).
Belt runs
(00000010)
Activates the monitoring
„Drive/ Tacho“ (see page 13).
----free
(00000020)
No function.
Delete err.
(00000040)
Deletes stored error messages.
Fault motor
(00000080)
If the input is activated, the error message „Drive /Tacho“ comes.
Fuse
(00000100)
If the input is activated, the error message„Fuse“ comes.
Enable regu
(00000200)
With this input the feeder regulator is released if „active“ is parameterized.
Start batch
(00000400)
At activated batch operating mode the batch discharge starts.
Break batch
(00000800)
The batch pre-selection
(batch remainder) is set to zero.
Emptying
(00001000)
Effects different functions of the contact outputs „Batch mode“ and „Batch drive “ at batch operation
(see page 9).
Mot.Poti +
(00002000)
Raises the set value „Disp.+/-“. Variable speed of adjustment. At short pulse (less than 0.3s) the set
value is raised by one indication step. At permanent pulse the speed of adjustment is increasing after some
steps.
Mot.Poti -
(00004000)
Reduces the set value „Disp.+/-“. As for the rest like „Mot.Poti +“.
B=>0 print
(00008000)
The counter „B“ is put out via serial interface and then set to zero.
Is done automatically at step 1 at batch operation.
ChargeExtern(00010000)
Switching-over of the source of set value for the batch quantity (see page 46).
Select 1
(00020000)
Selection for batch silo
(see page 16) and multi range
(see page 55).
Select 2
(00040000)
Selection for batch silo (see page 16) and multi range
(see page 55).
Fine streamCh
(00080000)
Batch operation with fine stream circuit (not at batch with emptying).
At achieving the fine-stream-switching-over the binary output „Coarse str.“
is switched off and „Fine
stream“ is switched on until achieving the total batch quantity. The batch remainder, at which the
switching-over from Coarse str. to Fine stream is done, is adjusted under „MODE-Pre-sets/LOG-CHARGE“
at „PreSwitchOff0“ at normal operation.
„Batch drive “ and
„Batch mode“ remain switched on during the whole batch run-down.
15.12.04
3DWA170T2E.DOC
Seite 47
The analog output
„Charge fine“ goes from the switch-off-point for Coarse str. after a ramp from 100%
to 10% at batch end.
At „DOSING“ and
„Integrat.range“ >10 the adjusted set value is decreasing from the switch-over-point
„Fine stream“ to „Min Set value“ (see page 76) (also after a ramp).
MOISTURE
(00100000)
If this input is activated, at the load of the measuring length the moisture adjusted or measured is deducted
(see page 57).
LoSpeTach
(00200000)
With the help of this binary input the conducting speed of a plant can be measured by means of a low-frequency signal (also see page 62).
t-FIFO
(00400000)
Controls the shifting register
„t-FIFO“.
(also see page 62).
Relay <+>1 <->
<F3> Error <ENTER>
K1 Ready to op
K2 Error
K3 Batch drive
K4 Feeder on
K5 Belt slip
K6 Lay on TW
Adjustment of the contact outputs K1 to K6.
The handling is the same as described at binary inputs („OPTO“).
The hexadecimal number in picture „CONTROL“ under „Relay“ (see page 19) indicates the activated relays (also those, which are not used at relay output, but nevertheless can be interrogated via Bus-connection).
At the weighing electronics DWC-5A only 4 contact outputs exist. K5 and K6 are designed as LED- displays H5 (red) and H6 (green) on the main board.
Possible functions at the contact outputs:
Error (00000001)
The contact output is switched on, if one of the errors registered in list „Error“ is activated (see page 52).
Ready
to op
(00000002)
The contact output is switched off, if one of the errors registered in list „Ready to op“ is activated (see
page 67).
Batch
mode
(00000004)
At batch operation without emptying:
The contact output closes at activating binary input „Start batch“, if a batch-set value is adjusted. Opens, if the adjusted batch quantity is achieved.
At batch operation with emptying:
The contact output closes at activating binary input „Start batch“, if a batch-set value is adjusted. Opens, if the adjusted batch quantity less the pre-switch-off-quantity (see page 17) is achieved.
Feeder on
(00000008)
Switches off, if taring or test with test weight is carried out.
MinLoad(00000010)
Is activated, if the measured value „g3“ falls under the limiting value „K-MIN“ .
MaxLoad(00000020)
Is activated, if the measured value „g3“ goes above the limiting value „K-Max“ .
Lay on TW
(00000040)
Controls the laying-on and lifting of the test weight, if a remote controllable test-weight-lay-on-device is
provided.
Test/TARE
(00000080)
15.12.04
3DWA170T2E.DOC
Seite 48
Is activated, if a test routine or the taring process is running.
Belt empty
(00000100)
Is activated, if the measured value „g3“ is under the limiting value „K-0“ .
Belt slip
(00000200)
Is activated, if after the adjusted number of tacho pulses no control pulse comes (see page 66).
Batch drive
(00000400)
Controls the weighing belt drive at batch operation.
At batch operation without emptying:
The contact output closes at activating binary input „Start batch“, if a batch set value is adjusted. Opens,
if the adjusted batch quantity is achieved.
At batch operation with emptying:
The contact output closes at activating binary input „Start batch“, if a batch set value is adjusted, Opens,
if after switching off „Batch
mode“ the measured value „g3“ has fallen under the limiting value „Belt
empty“ and „Post-Runtime“ has run down.
MinLoad ML
(00000800)
Is activated, if the load of the measuring length
(„g1“)
falls under the limiting value
„K-MIN“.
MaxLoad ML
(00001000)
Is activated, if the load of the measuring length
(„g1“)
goes above the limiting value
„K-MAX“.
FieldRelay1
(00002000)
FieldRelay2
(00004000)
Two contact outputs, which can be switched via the Bus-connection.
Deviation
(00008000)
Is activated by error „Control deviation“ .
Coarse str.
(00010000)
Is switched on at batch operation with fine stream control until achieving the fine stream quota.
Fine stream
(00020000)
Is switched on at batch operation with fine stream control from switching over to „Fine stream“ until
achieving the batch set quantity.
Belt stopped
(00040000)
Is activated, if the tacho frequency is below 1Hz.
FD-directi.(00080000)
Controls the sense of rotation at the feeder regulator with continuously working motor actuator (see page 32).
Feeder OPEN
(00100000)
Switches the motor operator at the feeder regulator with step regulator (see page 30).
FeederCLOSE
(00200000)
Switches the motor operator at the feeder regulator with step regulator (see page 30).
BeltemptyML
(00400000)
Is activated, if the measured value „g1“ is under the limiting value „K-0“.
15.12.04 3DWA170T2E.DOC Seite 49
WeighChannel
No Yes
== exit <F4>==
WeighChannel
- 2.1 %
18360
OFFSET 0
20000
^
SPAN 100
30000
====== 7500
act
>
0%
<F6>
act
>
100%
<F5>
==
exit <F4>==
Here it is possible to decide whether the adjustment picture resp. calibration picture shall be called or not.
In case of „NO“ the weigh channel adjustment is skipped.
If „YES“ is chosen, the percentile load with the test weight (parameter „TestWeight TW“) is offer as reference at the calibration of the weighing bridge.
Attention: In case of a test weight less than 50% it is recommended to use approximately the full load of the measuring length for raising the accuracy at the calibration of weigh channel. Then the corresponding value has to be adjusted.
In this picture the pre-load and the weighing range of the weighing bridge can be calibrated.
For calibrating the pre-load (is stored in parameter „OFFSET“) at unloaded weighing belt key „F6“ must be pressed.
After that the weighing bridge has to be loaded with the test weight. At motoric test-weight-lay-on-device the test weight is laid on with key „ENTER“ (the cursor jumps to „SPAN“). The calibration of the weighing range („SPAN“) is done with key „F5“.
The number in row 7 (7500 = 75.00%) informs about the adjustment value at „TestWeight TW“.
„OFFSET“ and „SPAN“ can also be changed by input of figures. The switching-over of the cursor from „OFFSET“ to „SPAN“ is done with key „ENTER“, as already described above.
If the cursor is at „SPAN“, after „ENTER“ again the picture for adjustment of the calibration load is called (the contact output „LAY ON TESTW.!“ is switched off).
In the picture for adjustment of the calibration load the value adjusted in parameter „TestWeight TW“ is indicated. Also then, if this adjustment has been changed for calibration before.
At leaving the weigh channel adjustment with key „F4“ at motoric test-weight-lay-on-device the test weight is lifted automatically.
PB-DP Address
126
^
ACT
126
MAX
126
MIN
2
==
exit <F4>==
Fabric.number
0
^
ACT
0
MAX
19999
MIN
0
== exit <F4>==
Address of the weighing computer at employment in a Profibus-DP net.
The address 126 means, that no employment in a Profibus-DP net is adjusted.
With this input the weighing computer is related to a certain scale.
The number adjusted can be read at „ActualParamet“ in picture 1 right at the bottom.
Additionally this number is indicated at the parameter printout.
15.12.04 3DWA170T2E.DOC Seite 50
Set clock
11:24:32
^
Wednesday
20.Jan.2001
== exit <F4>==
Adjustment of the net fail safe clock with date indication.
The selection of the adjustment to be changed is done with key „F3“. The change is carried out with keys „F1“ (+) and „F2“ (-). At kept-pressed key the speed of adjustment is raised.
The clock also can be adjusted in normal operation mode under „Pre-sets/LOG“.
6.4 Serial interfaces
COMMUNICATION
_1200,8,N,1 _2400,8,N,1
_9600,8,N,119200,8,N,1 CANopen
PROFIBUS DP
== exit <F4>==
Under „COMMUNICATION“ the RS232 interface „COM 1“ for parameter printout and printer output can be adjusted.
The adjustments for BUS-connections are described in a separate manual.
6.5 CONTROL
In the sub menus of „CONTROL“ no parameters can be changed (exception „COMMUNICATION“ and „SIMULATION“). It is, however, possible to read actual measured values, signal statuses, output values and internal information.
CONTROL
AD/SYS
DA
RELAY
OPTO/BCD
COMMUNICATION
SIMULATION
ANALYSIS
FLASH-PROM
exit <F4>==
Selection picture „CONTROL“.
The indication pictures are described on page 18 to 20.
At „SIMULATION“ the sources for simulation of the analog channels 1 and 2, of the weigh channel
(g-SIMU) and of the speed measuring (v-SIMU) can be adjusted.
The pictures of „ANALYSIS“ are described on page 22.
Additionally there is the picture „FLASH-PROM“ in parameterizing mode (see page 52).
15.12.04 3DWA170T2E.DOC Seite 51
6.5.1 Sources for simulation of the analog channels, of the belt load and of the speed measuring
g(v)-SIMU
A/D-Channel 1(2)
<F3>
<F3>
not active
not active
<ENTER>
<ENTER>
not active
not active
== exit <F4>==
== exit <F4>==
Not all sources offered are meaningful for the simulation.
There should also be considered if the simulation shall be used for operation (e.g. for „v-SIMU“ at belt scale without tacho „%FixedVal“ is the correct adjustment) or for tests.
For tests the adjustment „BCD1(2)“ is recommended if a BCD-adjuster is connected, apart from that „%Pre-set1(2)“.
After „v-SIMU“ has been activated or finished, after leaving the parameterizing mode absolutely a „RESET“ has to be carried out (see page 81).
6.5.2 Flash-Prom
FLASH-PROM
ID 0 CUI 0
Erase Flash
Prog Flash
Prog Nenn
RA1558 FP1580
X 7002
== exit <F4>==
In row 2 and 8 internal information is indicated.
In row 7 the check sums of the parameter memory (RA) and of the back-up memory (FP) can be read.
When calling one of the texts in row 3 - 6 and pressing key „ENTER“ the following functions are actuated:
Erase Flash
Deletes the back-up memory.
Attention: Thereby also the registrations in the log book are deleted!
Prog Flash
Carries out a data securing (transfer of the parameter memory into the back-up memory).
Prog Nenn
Copies all data of the back-up memory into the parameter memory (Re-charging, see page 81).
15.12.04 3DWA170T2E.DOC Seite 52
6.6 Kuk-Setup
In „KUK-SETUP“ all parameters can be adjusted.
Here it is not possible to adjust the real-time-clock, which, however, can be adjusted in normal operating mode under „Pre-sets/LOG“ and at „Data input“.
-KUK-SETUP-
ActualParamet
SYSTEM 1
SYSTEM 2
SCALE DATA
I/O CARDS
DOSING DATA
CONTROL
== exit <F4>==
The menus „ActualParamet“ (see page 23) and „CONTROL“ (see page 51) are equal to those in „MAINMENUE“.
6.6.1 SYSTEM 1
SYSTEM 1
INTEGRATION
DISPLAY MultiScaleW
CHARGE
FLEECE
MOISTURE
LINEARIZTN.
KW-PAR
exit <F4>==
Under „SYSTEM 1“ adjustments can be selected, which for the most part are not offered at „Data input“ and mostly are not required for standard applications.
6.6.1.1 Mean value formings
INTEGRATION
ITG - AD/DA
ITG-Speed
ITG-Display
SV-Integr.
== exit <F4>==
ITG - AD/DA
s/10
AD1
-30 <
AD2
30
DA1
3
DA2
-10
<
DA3
-20
<
DA4
30
g1
-50
INT
== exit <F4>==
In menu „INTEGRATION“ the adjustment pictures for mean value formings resp. signal dampings can be selected.
The analog channels „AD1“ to „DA4“ are adjusted in 1/10 second.
The adjustment is done after selecting the channel via key „F3“ (the selected channel is marked by „“) with keys „F1“ (+) and „F2“ (-). At kept-pressed key the speed of change is increasing.
Maximal adjustment values: -1000 +10 000
The adjustment „0“ is not admissible.
15.12.04 3DWA170T2E.DOC Seite 53
= The speed of change of the signal is limited after a ramp. The time adjusted (-xxx) corresponds to a signal change from 0% to 100%, resp. 100% to 0%.
In case of a signal jump of more than 33% of the total range the averaging is set out of function.
= Via the time adjusted the arithmetic mean value/ average is formed. Thereby the signal change is done in the form of a staircase.
The averaging of the load of the measuring length is done via the adjustment at „g1“. The adjustment „0“ is not admissible.
INT with negative number (maximal -10 000).
The averaging is done after a degressive curve. At the adjustment „-100“ about 65% of the signal change are reduced after a running distance of the weighing belt, which corresponds to the maximal belt speed.
INT with positive number (maximal 10 000).
The measured value of the belt load is averaged via the adjusted number of tacho pulses. Thus the load signal is provided in the form of a staircase. Thereby the distance used for the averaging keeps constant, not the time.
Example:
Maximal belt speed
= 500mm/s
Maximal tacho frequency
= 400Hz
Adjustment „g1“
= 1000
Averaging is done over 1250mm
(500/400x1000)
ITG-Speed
The speed measuring is averaged via the number of tacho pulses
adjusted here.
At „DOSING“ with
„Integrat.range“ >10 only low mean values
12
may be adjusted, as otherwise an instability in control behaviour
occurs (preferably one revolution of the digital tacho is averaged).
^
ACT
12
MAX
10000
MIN
1
== exit <F4>==
ITG-Display
Averaging of the conveying capacity indication resp. Of the
production indication (xx/m2 etc.) in GraphScreen and in the text
50 s/10
screens.
Maximal value = 120 (12s)
ACT
^
50
s/10
MAX
120
MIN
1
== exit <F4>==
SV-Integr.
Set value integrator.
The speed of change of the set value after jump-change can be
2500
reduced.
The adjustment indicates, which change per 0,1s in per cent
ACT
^
(10000 = 100%) of the set value range (0-100%) is carried out.
2500
Adjustment 2500 = 25% per each 0,1s = 0,4s for 100%.
MAX
10000
If the set
value is
lowered jumping to a lower
value
than the
MIN
10
adjustment
at the
parameter „SetValueNull“,
the
set value
== exit <F4>==
integrator is not effective (no time-retardation).
15.12.04 3DWA170T2E.DOC Seite 54
6.6.1.2 Selection of the display screen (GraphScreen)
DISPLAY BELT SCALE
CHARGE
FLEECE Actual load
== exit <F4>==
MultiScaleW
Nom. capacity 1 Nom. capacity 2 Nom. capacity 3
EXTERN D/A-Channel__1 D/A-CHANNEL__2 D/A-CHANNEL__3 D/A-CHANNEL__4
exit <F4>==
For the several operating modes different display screens can be selected. The display screens are describes from page 8 on.
6.6.1.3 Multi range design
The ranges „Nom. capacity 1/2/3“ (ranges 2-4) can be used only, if the source of set value „EXTERN“ is activated.
The marking of „EXTERN“ and „D/A-Channel__x“ is done after selection with key „F3“ with key „ENTER“.
The same process deletes a set mark.
4 different measuring ranges can be established. The weighing electronics has be informed by binary inputs „Select 1“ and „Select 2“, which measuring range is being used.
At the selection of one of the ranges 2 - 4 at 100% speed the rated frequency is supposed in the same extent, as „Nom. capacity x“ against „Nom. capacity“.
Measuring range
Binary contact
Remark
Nom. capacity
-
Basic range, param. „Nom. capacity“.
Must always be the highest range.
Nom. capacity
1
Select 1
Range 2
Nom. capacity
2
Select 2
Range 3
Nom. capacity
3
Select 1
+ Select 2
Range 4
EXTERN
If „EXTERN“ is marked, at the analog set values 100% set value signal is equal to the maximal capacity in the respective range. If „EXTERN“ is not marked, the range 1 is valid for 100% set value signal.
D/A-CHANNEL
If a D/A-Channel is marked, the output value is decreasing proportionally with the range selected in the ratio to range 1. At the D/A-Channel, which is not marked, in each range up to 100% is put out.
6.6.1.4 Batch operating mode
CHARGE
ChargeIntern ChargeExtern
Post-Runtime
Batch operating mode is activated, if at a source of set value another adjustment than „not active“ is selected.
The adjustment pictures for the batch/charge set values are described on page 46.
== exit <F4>==
15.12.04 3DWA170T2E.DOC Seite 55
Post-Runtime
1
s
ACT
^
1
s
MAX
240
MIN
1
== exit <F4>==
At batch operating mode „Emptying“ the contact output „Batch drive“ at batch end remains switched on for the time adjusted from „Belt empty“ on.
For recognition of „Belt empty“ the limiting value „K-0“ is used. The measuring is done at point „g3“.
6.6.1.5 Special operating mode „FLEECE“
FLEECE
Area weight
Scaling1
Scaling2
Scaling3 Belt width Working width
== exit <F4>==
The function of the scaling parameters „Scaling1(2)“ is described on page 39.
„Scaling3“ serves for scaling the display in „g/m2“ etc. at the set values „A/D1*A/D2“ and „A/D1(2)*%1“
Area weight not active
XXX.X g/m2 XXXX g/m2 XX.XX kg/m2 XXX.XX % XXX.X % XXXX oz/sy XXX.X oz/sy
== exit <F4>==
At „not active“ the indication unit is used - as described on page 8.
The adjustment selected here is used at „Picture for fleece plants“ (see page 11), if one of the multiplying set values (see page 42/43) is active .
Belt width
0
mm
ACT
^
0
mm
MAX
10000
MIN
0
== exit <F4>==
For dosings with adjustable working width.
It is possible to reduce the set value „EXTERN“ proportionally to the reduction of the working width.
At the set value „INTERN“ the reduced working width is not considered!
At „Belt width“ the maximal working width has to be adjusted (not the belt width!). At adjustment „O“ no set value change is done due to the working width.
15.12.04 3DWA170T2E.DOC Seite 56
Working width <F3>
not active
<ENTER>not active
== exit <F4>==
The set value „EXTERN“ is calculated as follows: Pre-set value / „Belt width“ * „Working width“.
At the calculation of the production indication („g/m2“ etc.) the set value change is re-calculated backward. Thus a correct indication is effected related to the working width.
The actual working width has to be signalled to the weighing electronics. Thereto several sources are available.
If the source delivers the same value as „Belt width“, the set value is not changed.
Only the sources indicated in the following are reasonable for the „Working width“ :
BCD 1(2)
Profibus 1(2)
Pre-set 1(2)
%Pre-set1(2)
AD1(2)
CV 0 (1,2,3)
If at „calculating value“ the result is calculated to %, at „Belt width“ = 10 000 must be adjusted. At calculation to millimetres also „Belt width“ has to be adjusted in mm.
6.6.1.6 Consideration of the material moisture
MOISTURE MOISTURE
MOISTURE 0%
MOISTURE100%
== exit <F4>==
MOISTURE <F3>
not active
<ENTER>
not active
== exit <F4>==
At the load of the measuring length measured by the weighing channel a moisture correction can be done.
Selection for the source for dry weight calculation.
Only the following sources are reasonable for the dry weight calculation :
BCD 1(2)
100%
= 10.000
Profibus1(2)
100%
= 10.000
%Pre-set1(2)
100%
= 100,0
%FixedVal
100%
= 100,0
A/D 1(2)
100%
= 100,0% 1)
CV 0(1,2,3)
100%
= 10.000
The dry weight calculation works only if the binary input „MOISTURE“ is activated.
E.g. at the analog pre-set (A/D x) for 4-20mA a moisture range of 8% (moisture 0%) up to 16% (moisture 100%) can be determined. This limiting is also effective at the other sources. Then, however, the allocation of the percentage is not clearly represented and therefore not recommendable.
15.12.04 3DWA170T2E.DOC Seite 57
MOISTURE 0%
MOISTURE100%
Value
Value
in
per
mille
in
per mille
100.0=
1000
20.0=
200
0
200
MAX
^
100.0%
MAX
^
100.0%
MIN
0.0%
MIN
1.0%
==
exit <F4>==
==
exit <F4>==
In these pictures the moisture range can be allocated (e.g. 0% AD1 corresponds to 10% moisture, 100% AD1 corresponds to 20% moisture).
6.6.1.7 Linearization of the weighing channel
LINEARIZTN.
LinearTAB 1
LinearTAB 2
== exit <F4>==
6.6.2 SYSTEM 2
SYSTEM 2
PLC1
PLC2
FIFO
VAL
Logbook
== exit <F4>==
In table 1 and 2 altogether17 linearization points for the load measured value „Gross-g“ are offered (LW00 - LW16).
The distance between the linearization points is 8%.
Linearization point 0 (LW00) is allocated to 0% „Gross-g“, Linearization point 16 (LW16) corresponds to 136% of „Gross-g“.
The maximal adjustment value is +/-50.0% ((-)500).
The percentages are related to the appertaining measured value but not to 100% of the load.
The following adjustments are possible under „SYSTEM 2“:
Formulas for the calculations with the results „CV 0 - 5“ and „RL0“ / „RL1“
Selection of the source for the net weight calculation at series feeding
Freely programmable shifting register
Value input for the fixed values 1)
Measuring of the conducting speed by the slowly running transmitter 1)
Selection of the sources for the transfer values 1)
6.6.2.1 Programmable calculating unit (PLC1/2)
The calculating unit works similar to the program-run-off of an SPS/PLC.
With the help of the calculating unit maximally 6 calculating results can be formed („CV 0 - CV 5“). For provisional results over 32000 the two Long-Values „RL0“ and „RL1“ are available.
The results „CV 0 - CV 3“ can be used at the following adjustments:
ChargeIntern/Extern
g-SIMU
Nominal load
v-SIMU
Moisture
Sub-g
TransValue1
s-FIFO
TransValue2
t-FIFO
Working width
Set values „INTERN“ and „EXTERN“ (only „CV 0“ and „CV 1“ )
1)
in picture „VAL“
15.12.04 3DWA170T2E.DOC Seite 58
Example of a calculation:
CALC1
Load variable 26
(BCD1 Value)
L
00026
x Variable 64
(Transfer value 1)
*
00064
/ Constant
(10000)
/ #10000
Result = Variable 90
(CV 0)
=
00090
NOP
NOP
NOP
NOP
== exit <F4>==
For the input of the calculation the following pictures are available:
Variable
After the row marking had been set to the row to be processed, press key
„ENTER“. The opposite selection picture appears.
Constant
First of all a value must be loaded. This may be a measured value or the
+ - * / % C
value of variable from the list mentioned below or even constant.
Thereto select „L“ and press „ENTER“.
IF/Jump
The row marking jumps to „Variable“.
L
This is OK in our example. If the begin shall be done with a constant, then
=
„constant“ has to be selected.
NOP
With „IF/Jump“ conditional jumping commands can be executed.
== exit <F4>==
Press key „ENTER“. The opposite input picture for the number of the
VAR
variable appears.
Adjust the number of the variable and transfer it with „ENTER“ to „ACT“.
26
With „MODE“ again the picture „PLC1(2)“ is shown, along with the
^
adjustment carried out.
ACT
26
The further proceeding for the other operands of the calculation
MAX
32767
MIN
0
corresponds to that described at the load command.
== exit <F4>==
In order to program arithmetic functions, in selection picture „+ - * / %
C“
has to be selected and to be called with „ENTER“. After the selection of
the arithmetic function and
„ENTER“
return with „MODE“ into the selection picture and select there -
according to the demand -
„Variable“ or „constant“.
The result of the calculation is written in the variable, which has been selected at the end of the calculation with the adjustment „=“ (CV 0 - 5, resp. RL 0 and RL 1).
The calculating values „CV 4“ and „CV 5“ as well as „RL 0“ and „RL 1“ are usable only for provisional results.
The 16 rows in all for the calculation(s) in both pictures „PLC1/2“ are to be considered one page.
With the help of the adjustment „C“ high-Bit and low-Bit can be changed at the variables. This is necessary at the transmission with CanBUS.
15.12.04 3DWA170T2E.DOC Seite 59
Usable variables at the calculations:
No.
Variable
Z = Number value
No.
Variable
Z = Number value
% = Percentage
% = Percentage
(100% = 10 000)
(100% = 10 000)
21
AD1
%
90
CV 0
Z / %
22
AD2
%
91
CV 1
Z / %
26
BCD1
Z
92
CV 2
Z / %
27
BCD2
Z
93
CV 3
Z / %
60
P3-Capacity
%
94
CV 4
Z / %
61
Feeder SV
%
95
CV 5
Z / %
62
Drive WB
%
96
Long calc.value 0
Z / %
64
TransValue 1
%
97
Long calc.value 1
Z / %
65
TransValue 2
%
100
Nom. capacity
Z
66
Actual load
%
101
Nom. capacity 1
Z
67
Delay load
%
102
Nom. capacity 2
Z
68
Speed
%
103
Nom. capacity 3
Z
69
Scaling2
%
360
Pre-set 1
Z
70
Set value
%
361
Pre-set 2
Z
71
P2 Capacity
%
72
P1 Capacity
%
73
Deviation
%
74
Charge fine
%
75
FeederDevia
%
76
s-FIFO
%
77
t-FIFO
%
6.6.2.1.1 Examples calculating unit:
At production weight pre-set in g/m2 via input „BCD1“ the capacity set value for the weigh feeder shall be calculated with the help of a pulse generator, which is measuring the speed of the production plant.
For the speed measuring the function „LoSpeTach“ is used.
Maximal production speed: 12m/min
Working width: 2200mm
Nom. capacity of the scale: 1500kg/h
Maximal production weight: 2000g/m2
Tacho pulses at 12m/min: 25Imp/min
2000g/m2 at 2200mm width and 12m/min effect a dosing capacity of 3168kg/h.
As the scale has only a nominal capacity of 1500kg/h, the pre-set-value of 2000g/m2 can only be used at maximal 5.68m/min. At 12m/min maximally a production of 947g/m2 can be achieved. Over 1500kg/h the error message „Bad set value“ is activated.
Adjustments for the speed measuring:
OPTO x:
LoSpeTach
LoSpeTach:
36 (see calculation for the adjustment on page 62).
The measured value is transferred into the transfer value 1 (TransValue1
= LoSpeTach)
Adjustment of the calculating unit:
L
00064
(TransValue1))
15.12.04
3DWA170T2E.DOC
Seite 60
=
00090
(CV 0)
L
00026
(BCD1)
=
00091
(CV 1)
The source of set value is
„CV 0 x CV 1“
Adjustment scaling factors:
Scaling1 =
4735
(10 000 x 1500 / 3168)
Scaling2 =
2000
Scaling3 =
10000
Example of a set value calculation with the analog channels AD1 and AD2:
The sum of both AD-channels shall form the capacity set value.
AD1-Channel: 100% (10 000) = 1800kg/h
AD2-Channel: 100% (10 000) = 900kg/h
The weigh feeder has a nominal capacity of 2500kg/h.
In case of 100% signal on both AD-channels a set value of 2700kg/h would arise. The set value, however, is limited to 102% of the nominal capacity. The weigh feeder therefore works with maximally 2550kg/h. Over 2500kg/h the error message „Bad set value“ is activated.
L
00021
(AD1)
Adjustment scaling factors:
x
#01800
(Scaling signal AD1)
Scaling1 =
10000
/
#02500
(Scaling weigh feeder)
Scaling2 =
10000
=
00094
(CV 4)
Scaling3 =
10000
L
00022
(AD2)
x
#00900
(Scaling Signal AD2)
/
#02500
(Scaling weigh feeder)
=
00095
(CV 5)
L
00094
(CV 4)
+
00095
(CV 5)
=
00090
(CV 0)
6.6.2.2 Net calculation at series feeding
FIFO
Sub-g
s-FIFO t-FIFO t-Fifo time
== exit <F4>==
meaningful:
A/D 1(2)
Profibus1(2)
s(t)-FIFO
CV 0 - 3
In picture „FIFO“ the source for the net calculation at series feeding can be selected (also see page 33).
The signal delivered by the source is deducted from the gross measured value of the scale (after the tare).
The deduction is done in per cent, whereby the number inputs 10 000 correspond to 100%.
Of the possibilities offered only the use of the following sources is
15.12.04 3DWA170T2E.DOC Seite 61
6.6.2.3 Freely usable shifting registers
FIFO
Sub-g
s-FIFO t-FIFO tFIFO time
== exit <F4>==
The shifting register „s-FIFO“ is controlled by the tacho pulse and has a length of 256 storage values (like the discharge shifting register). The output is determined by „g2-Length“ and may be adjusted maximally as long as „g3-Length“.
The delayed value is available as value „s-FIFO“.
The shifting register „t-FIFO“ is time controlled (Steptime is 1/3 second), the maximal running time is 600 seconds.
With „tFIFO time“ the running time is adjusted.
The shifting register is released by the binary input „t-FIFO“.
The delayed value is available as value „t-FIFO“.
The following sources can be delayed by the shifting registers:
P3-Capacity
%FixedVal
BCD1(2)
A/D 1(2)
Profibus1(2)
CV 0(1,2,3)
Pre-set 1(2)
Gross-g
%Pre-set1(2)
Set value
FixedVal
LoSpeTach
6.6.2.4 Selection picture for fixed values, speed measuring and transfer values
VAL
The adjustment pictures are selected in selection picture „VAL“.
FixedVal
%FixedVal
LoSpeTach
TransValue1
TransValue2
== exit <F4>==
6.6.2.4.1 Fixed values
The sources adjustable at several possibilities of application „FixedVal“ and „%FixedVal“ can be selected under „System 2“ in picture „VAL“ and loaded with number value up to 50 000 („FixedVal“) resp. With a percentage up to 300% („%FixedVal“).
6.6.2.4.2 Measuring of the plant speed via pulse generator
LoSpeTach
100
^
ACT
100
MAX
1000
MIN
0
== exit <F4>==
With the help of a pulse generator fitted at the working machine and of binary input „LoSpeTach“ the plant speed can be measured and processed.
The speed pulses are evaluated with a resolution of 15,26 Hz. This means that in case of a pulse series of 1 pulse in 10 seconds the adjustment 153 has to be selected. The measuring uncertainty then is 0.65%.
At 1 pulse per second 15 must be adjusted. Then the measuring uncertainty is 6,5%.
„LoSpeTach“ is used for set value calculation in case of multiplied set values (in indirect route via „TransValue1(2)“ and „CV 0 * CV 1“).
15.12.04 3DWA170T2E.DOC Seite 62
6.6.2.4.3 Transfer values 1 and 2
The variables adjustable at several possibilities for application „TransValue1“ and „TransValue2“ can be provided under „System 2“ in picture „VAL“ with following sources.
P3-Capacity
FixedVal
Set value
BCD1(2)
%FixedVal
LoSpeTach
Profibus1(2)
A/D 1(2)
s-FIFO
Pre-set 1(2)
CV 0(1,2,3)
t-FIFO
%Pre-set1(2)
Gross-g
6.6.2.5 Log book
Logbook
notactiveactive
Logbook
Erase Log
== exit <F4>==
Always stored are:
In the log book about 6000 data sets can be stored. The storage always is done with date and time.
The following activities can be stored („active“):
Taring with tare mean value
Test with test weight with test result
Material test with correction factor (1000 = no correction)
Area weight test with correction factor (1000 = no correction)
Leaving of the parameterizing mode with check sum „RA“ and „FP“
Cold start with indication, which type of scale had been charged.
V1
= Belt scale
V3
= Weigh feeder
Data loss with indication, how often re-charging had taken place.
If „Logbook“ is selected with key „F3“and key
„ENTER“ is pressed, the log book registrations can be read The
data sets are selected with keys „F1“ (+) and
„F2“ (-).
If „Erase Log“ is selected and key „ENTER“ is pressed, the data in the log book are deleted.
6.6.3 SCALE DATA
Main menu for the weigh feeder scaling and other important adjustments.
SCALE DATA
RATED DATA
LIMIT VALUES Tarat.mode
TEST
ERRORHANDLING
Display-Unit Slip tacho
exit <F4>==
15.12.04 3DWA170T2E.DOC Seite 63
6.6.3.1 RATED DATA
RATED DATA
TYPE SCALE Nom. capacity Rated freque. Rated speed
BELT DATA Fabric.number
exit <F4>==
In this selection picture it is possible to select and adjust directly parameters, which are also offered at „Data input“ see from page 38 on).
Under „BELT DATA“ the parameters „Belt length“, „g3-Length“ and „g2-Length“ are offered.
6.6.3.2 LIMIT VALUES
LIMIT VALUES
Min Load K_MIN Max Load K_MAX
Belt empty K_0 DisableCount Taration Err.
exit <F4>==
Min Load Value
in per mille 38.3% = 333
383
^
MAX
100.0%
MIN
0.0%
== exit <F4>==
K_MIN Value
in per mille 38.3% = 333
383
^
MAX
100.0%
MIN
0.0%
== exit <F4>==
There are separate adjustments for the error messages and relays at the load limiting values.
The limit values „K_xx“ are competent for the relays.
Adjustment picture MIN-error message (belt load).
At „SETUP“ an automatic determination is done (see page 40).
The limiting value „Min Load“ activates the error message „Min Load“ (measured at point „g1“)
Adjustment picture for MIN-switch point depending on the belt load. At „SETUP“ an automatical determination is done (see page 40).
The limiting value „K_MIN“ is used as follows:
Activation of contact output „Min-Load“ (MIN at point „g3“)
Activation of contact output „Min-Load MS“ (MIN at point „g1“)
15.12.04 3DWA170T2E.DOC Seite 64
Max Load Value
in per mille 95.0% = 950
950
^
MAX
150.0%
MIN
10.0%
== exit <F4>==
K_MAX
Value
in per mille 95.0% = 950
950
^
MAX
150.0%
MIN
10.0%
== exit <F4>==
Belt empty Value
in per mille 5.0% = 50
50
^
MAX
100.0%
MIN
0.0%
== exit <F4>==
K_0 Value
in per mille 5.0% = 50
50
^
MAX
100.0%
MIN
0.0%
== exit <F4>==
Adjustment picture MAX-error message (Belt load).
The limiting value „Max Load“ activates the error message „Max Load“ (measured at point „g1“)
Adjustment picture for MAX-switch point depending on the belt load.
The limiting value „K_MAX“ is used as follows:
Activation of contact output „MAX-Load“. (MAX at point „g3“)
Activation of contact output „MAXLoad ML“. (MAX at point „g1“)
The limiting value „Belt empty“ controls the following activities:
Symbol „Belt empty“ in GraphScreen (measured at point „g1“)
Release of the taring process (measured at point „g3“)
Release of „LAY ON TESTW.!“ at the test load (measured at point „g3“)
Start of the Post-Runtime at Charge with emptying (measured at point „g3“) .
The limiting value „K_0“ is used as follows:
Activation of contact output „K_0“. (Measured value „g3“ below adjusted value)
Activation of contact output „K_0 MS“. (Measured value „g1“ below adjusted value )
15.12.04 3DWA170T2E.DOC Seite 65
DisableCount Value
in per mille 2.5% = 25
25
^
MAX
100.0%
MIN
0.0%
== exit <F4>==
Taration Err. Value
in per mille 37.5% = 375
375
^
MAX
100.0%
MIN
2.0%
==
exit <F4>==
Blocks the counters „A“ and „B“, the batch quantity counter and the counting pulse output, if the weight „g3“ is falling under this value.
The material test counter is not blocked!
The message „Taration Err.“ is put out, if at taring a greater deviation of the weight measured value (+/-)is occurring than the tolerance adjusted here compared to the value „WC-OFFSET“ - - .
At „SETUP“ an automatical determination is done (see page 40).
6.6.3.3 Selection of the taring (taration) mode
Tarat.mode
Determination of the taration mode. The taring is described on page 24/25.
MEAN VALUE
ABSOLUTE TARE
exit <F4>==
6.6.3.4 Adjustments for the test with test weight
4
-TEST
-
TestWeight TW
Load value simulated by the test weight.
The value indication is in 1/100 %
TestWeight TW
(7500 = 75.00%).
Lim.of correc.
7500
^
Lim.of correc.
Limiting of the possibility for correction
ACT
7500
Value
MAX
12000
at the test with test weight and at the
in per mille
MIN
1000
material test (see page 26/27).
10.0% = 100
== exit <F4>==
== exit <F4>==
The limiting is related to the value „UR-
100
SPAN“ determined at the calibration.
^
This makes impossible that in case of
MAX
80.0%
several corrections in succession with deviations below the
MIN
0.0%
correction limit an adjustment greater than the correction limit would
== exit <F4>==
be obtained.
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6.6.3.5 Error handling
ERRORHANDLING
Ready to op Error
Memory
Errortime 1
Errortime 2
Errortime 3
== exit <F4>==
In this picture the adjustments for the contact outputs „Ready to op“ and „Error“ as well as for the error memories and the three error adjustment pictures can be selected.
6.6.3.5.1 The contact output „Ready to op“
/
Ready to op
Error messages, at which the contact output „Ready to
op.“ is switched
ON
<+> <->
off.
Drive/Tacho
For taking an error into the contact output bring to display the error with key
<ENTER>
„F3“ in row 3 and record it in the list with key „ENTER“
„OFF“
An error is deleted in the list, if at pressing key „ENTER“
in row two
is indicated.
Mis-Run
The switching over between
„ON“ (record) and „OFF“
(delete)
is done
with keys „F2“ („OFF“) and
„F1“ („ON“).
A/D-Error
Drive/Tacho
If more than six error messages are selected, this is indicated by „+“
before
and after the uppermost error record.
At „ActualParamet.“ all error messages selected at „Ready to op.“ are represented in altogether in 3 pictures.
6.6.3.5.2 Contact output „Error“
Error
ON <+> <->
Drive/Tacho
<ENTER>
programmFLASH Deviation
Bad set value Overheat A/D-Error Drive/Tacho
Error messages which lead to switching on contact output „Error“. As for the rest as described at „Ready to op.“.
15.12.04 3DWA170T2E.DOC Seite 67
6.6.3.5.3 Error memory
Memory
ON <+> <->
Drive/Tacho
<ENTER>
Belt slip
A/D-Error
Drive/Tacho
Error messages recorded here remain stored after elimination of the error reason. In the error picture (normal operating mode) stored errors, which are no longer acute, are identified by the addition „M“.
,If more than 6 errors are recorded in the memory list, this is indicated by „+“ before and after the uppermost error.
At „ActualParamet.“ all error messages selected for the memory are represented.
Deletion of stored errors is done with key „F2“ or by binary input „Delete err.“. Deleting with key „F2“, however, is possible only if the error picture is indicated (also see page 13).
6.6.3.5.4 Adjustment pictures „Error“
Errortime
1
Errortime
2
Errortime
3
<F5>disable
<F5>disable
<F5>disable
Fuse
0
Max Load
X
programmFLASH
0
Drive/Tacho 5
GurtBelt slip
0
ParameterInp. 0
A/D-Error
5
Test wrong
0
Data lost
0
Overheat
10
Taration Err.
0
Speed
X
Belt stopped
X
Feeder limit. X
Bad set value
5
Mis-Run
5
Belt empty
0
Min Load 10
Deviation10
Release/disabling of error messages and delaying times.
The error message to be processed is marked by the arrow at the left screen margin with key „F3“. The error message is disabled/blocked with key „F5“ (display by „X“).
The delay time until the response of the error message (0-60 seconds) is adjusted with the keys „+“ and „-“. At kept-pressed key the speed of adjustment is increasing.
Description of the error messages see from page 13 on.
6.6.3.6 Display-Unit of capacity
Display-Unit
____0.1 kg/h
____1_ kg/h
0.010_ t /h0.100_ t /h 1.000_ t /h
== exit <F4>==
Adjustment of the display-unit for the conveying capacity. It is not meaningful to select a resolution higher than 2000.
At „SETUP“ of
„Data input“ an automatical determination of the display-
unit is done (see page 40).
up to
199.9 kg/h
=
0.1 kg/h
200 -
1999
kg/h
=
1
kg/h
2.00 -
19.99
t/h
=
0.010
t/h
20.00
-
199.9
t/h
=
0.100
t/h
200.0
t/h - 10000
t/h
=
1.000
t/h
15.12.04 3DWA170T2E.DOC Seite 68
I/O CARDS
WeighChannel
A/D-Channel 1 / 2
D/A_Channel_1 - 4 Opto IN
Relay
BCD 1 / 2 Counterpulse
== exit <F4>==
Slip tacho
6.6.3.7 Monitoring with pulse generator at not driven belt drum
With the help of binary input „SYNC“ a monitoring of the running can be realized, if „ABSOLUTE TARE“ is not used at „Tarat.mode“.
0
At „Slip tacho“
the number of tacho pulses is adjusted, after which a
control pulse (SYNC) has to arrive.
^
If
more tacho pulses are counted than are adjusted here, the following
ACT
0
activities are done:
MAX10000000
Error message
„Belt slip“
MIN
0%
== exit <F4>==
Contact output
„Belt slip“
The monitoring is activated only if an adjustment greater than „0“ is done.
6.6.4 I/O CARDS
Selection menu for the adjustments of the inputs/outputs on the I/O-cards.
6.6.4.1
Weigh channel
WeighChannel
The weigh channel adjusting can also be carried out at data input (see page
50).
In the first picture the calibrating load is offered in 1/100% at the calibration
7500
of the load of the measuring length with the help of the test weight.
^
ACT
7500
MAX
12000
MIN
1
== exit <F4>==
In this picture pre-load and weighing range of the weighing bridge can be
WeighChannel
calibrated.
2.1 %
18360
For calibrating the pre-load (is stored in parameter
„OFFSET“) at unloaded
weighing belt key „F6“ has to be pressed.
OFFSET 0% 20000
^
Then the weighing bridge is to be loaded with the test weight. At motoric
SPAN 100% 30000
test-weight-lay-on-device the test weight is laid on with key „ENTER“ (the
====== 7500
cursor jumps to „SPAN“).
akt >
0%
<F6>
The calibration of the weighing range („SPAN“)
is done with key „F5“.
akt > 100%
<F5>
At the calibration „UR SPAN“ , „SICHAD“ and
„SPAN 100%“ are adjusted
== exit <F4>==
to the actual measured value (corrections executed at the test programs
before are deleted!).
„OFFSET“ and
„SPAN“ can also be changed by input of figures.
The switching over of the cursor from „OFFSET“ to „SPAN“ is done with key „ENTER“.
If the cursor is at „SPAN“, after
„ENTER“ again the picture for adjusting the calibration load is called (the
contact output
„Lay on TW“ is switched off).
In the picture for adjusting the
calibration load the value adjusted in parameter
„TestWeight TW“ is
indicated. Even if this adjustment has been changed before for calibration.
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At leaving the weigh channel adjustment with key „F4“ the test weight is lifted automatically at motoric test-weight-lay-on-device.
6.6.4.2 Analog input channels 1 and 2
A/D-Channel 1(2) Value
in per mille 100.0% = 1000
1000
^
MAX
120.0
MIN
0.0
== exit <F4>==
A/D-Channel 1(2)
53.6 %
3375
OFFSET 0%
2
^
SPAN 100%
6300
======
act
>
0%
<F6>
act
>
100%
<F5>
==
exit <F4>==
As at the weigh channel, also at the two analog input channels calibration with a partial range of the signal is possible.
Also here the calibration is done with keys „F6“ (zero point) and „F5“ (range).
Always calibrate zero point („OFFSET“) before range („SPAN“).
The adjustment can also be done by direct input of numbers (switch-over from „OFFSET“ to „SPAN“ with key „ENTER“).
The values for „OFFSET“ and „SPAN“ must have approximately the following adjustment:
Signal range
OFFSET
SPAN
0-10V / 0-20mA
2
6300
2-10V / 4-20mA
1262
5040
The employment of the inputs for tension or current is determined by the adjustment of the jumpers J1-3 and J5-7.
0(2) -10V
0(4)-20mA
A/D-Channel
J2
J1 + J3
1
A/D-Channel
J6
J5 + J7
2
Employment of the analog channels 1 and 2:
The employment of the analog inputs is adjusted at the corresponding pre-sets.
There must not be programmed any multiple employment.
Pre-sets, at which the employment of the analog channels is meaningful:
Capacity pre-set value
Transfer value
(see page 41-43)
(see page 72)
Nominal load
Simulation of the belt load
(see page 78)
(see page 78)
Working width
Net calculation at series feeding
(see page 56)
(see page 78)
Moisture measured value
Shifting register
(see page 57)
(see page 78)
Batch set value
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(see page 46)
15.12.04 3DWA170T2E.DOC Seite 71
6.6.4.3 Analog outputs 1 - 4
D/A-Channel___1
<ENTER>
<F3> P3 Capacity
DA1 P3 Capacity OFFSET 40 SPAN 3400
== exit <F4>==
Adjustment possibility for the analog outputs 1- 4.
The value to be put out is selected with key „F3“ in row 3 and recorded in row 7 with key „ENTER“
The analog output 1 has 8-Bit resolution (256).
The analog outputs 2 - 4 have 12Bit resolution (4096).
At output value „Drive WB“ also the precision regulator is indicated (also see page 75).
The following values can be put out:
P3 Capacity
Discharge capacity, which is calculated at point „g3“. At „DOSING“ with „Integrat.range“ >10 the capacity, which is controlled corresponding to the set value.
100% = „Nom. capacity“.
Feeder SV
Variable for the feeding aggregate at separately driven material feeding also see page 43/46).
Drive WB
Variable for the weighing belt drive.
0% output
Only for adjustments.
TransValue11
The value deposited at „TransValue1“ is put out. 100% = 10 000
The source for „TransValue1“ is adjustable (see page 63).
100% output
Only for adjustments.
Actual load
The value of „g1“ indicated in the text screen is put out.
Delay load
The value of „g3“ indicated in the text screen is put out..
Speed
Speed of the weighing belt. 100% = „Rated speed“
Scaling2
Output of the production value („g/m2“ etc.)
The output value is 100%, if the production indication is equal to the parameter „Scaling 2“ (at „A/D1*A/D2“ and at „A/D1*%1“ equal „Scaling 3“).
Is working also at set value „INTERN“ (also see page 42/43).
Outp.setval
The actually effective set value is put out. 100% = „Nom. capacity“
P2 Capacity
Discharge capacity, which is calculated at point „g2“. 100% = „Nom. capacity“.
15.12.04 3DWA170T2E.DOC Seite 72
P1 Capacity
Actual conveying capacity on the measuring length (calculated with „g1“). At „DOSING“ with „Integrat.range“ >10 and „g3-Length“ >0 „P1 Capacity“ is not stable, as the dosing capacity controlled correspondingly to the set value is calculated with weight „g3“.
100% = „Nom. capacity“ (see page 38).
Deviation
If between set value and actual value no control deviation is measured, the DA-channel puts out 50% .
At 100% control deviation related to „Nom. capacity“ of the scale, the DA „Deviation“ is adjusted to 0% (at set value = 100% and actual capacity = 0). If the actual capacity is 200% of „Nom. capacity“ (at set value 100%) the DA „Deviation“ goes to 100%.
Examples:
„Nom. capacity“ = 12.00t/h Set value = 6.00t/h
Actual value = 8.00t/h
Actual value = 4.00t/h
DA-output „Deviation“ =
50% + (50% / 12t/h * (8t/h - 6t/h)) = 58.3%
50% - (50% / 12t/h * (6t/h-4t/h)) = 41.7%
Charge fine
At batch operation with „Coarse/Fine“ discharge the analog output is reducing linearly from 100% to10% at batch end from the switch-over-point to „Fine stream“ on (also see page 21).
FeederDevia
Variable for the adjusting device of the feeder at continuous control as described on page 32.
s-FIFO
Value delivered by the shifting register „s-FIFO“.
t-FIFO
Value delivered by the shifting register „t-FIFO“.
D/A-Channel___1
D/A-Channel___1
<ENTER>
<ENTER>
<F3> P3 Capacity
<F3> P3 Capacity
40 OFFSET
3400 SPAN
^
^
ACT
40 OFFS
ACT
3400 SPAN
MAX
1200
MAX
10000
MIN
0
MIN
400
==
exit <F4>==
==
exit <F4>==
Adjustment possibility for the output value zero resp. 100%
The change to signal form 4-20mA is done with „OFFSET“ and „SPAN“.
Signal range
OFFSET
SPAN
0-10V / 0-20mA
40
3400
2-10V / 4-20mA
715
2720
15.12.04 3DWA170T2E.DOC Seite 73
6.6.4.4 Binary inputs U1 - U5
Opto IN <+>1 <-> Fault motor
<ENTER>
U1 Fault motor
U2 Belt runs
U3 INTERN/EXT.
U4 Delete err.
U5 ----free
Adjustment possibilities for the binary inputs „U1 - U4“ and for the marker „U5“.
Possible adjustments see page 46/47.
The marker „U5“ makes possible the permanent switching-on of a function. The inverting thereby must not be used.
6.6.4.5 Contact outputs 1 - 6
Relay <+>1 <->
<F3> Error
<ENTER>
K1 Ready to op
K2 Error
K3 Batch drive
K4 Feeder on
K5 Belt slip
K6 Lay on TW
Adjustment possibilities for the binary outputs 1 - 6.
Possible adjustments see page Fehler! Textmarke nicht definiert./Fehler! Textmarke nicht definiert..
Attention:
The weighing electronics DWC-5A has only 4 contact outputs.
6.6.4.6 BCD-inputs 1 and 2
BCD 1 *0.1*1*10
BCD 2 *0.1
*1*10
== exit <F4>==
The number value memorized at the BCD-inputs seized with a factor.
At the indication under „CONTROL“ the factor adjusted here is considered (see page 21).
Attention:
At the weighing electronics DWC-5A the BCD input 2 is adjustable with the 4 rotary switches (SW1 - SW4) in the left area of the main board.
Counterpulse ____ 0.1 kg____1_ kg0.010_ t 0.100_ t 1.000_ t
Pulse length
== exit <F4>==
6.6.4.7
Counting pulse output
The allocation of the counting step
to
„Nom. capacity“ is done
automatically at „SETUP“ (see page 40).
up to
2999 kg/h
=
0.1
kg
3.00 -
29.99
t/h
=
1
kg
30.00 -
299.9
t/h
=
10
kg
(0.010
t)
300 -
2999
t/h
=
100
kg
(0.100
t)
3000 -
10000
t/h
=
1
t
(1.000
t)
The internal counters „A“, „B“ and the batch counting always correspond to the adjustment at „Counterpulse“.
15.12.04 3DWA170T2E.DOC Seite 74
Pulse length
50
ms
ACT
^
50
MAX
1000
MIN
2
==
exit <F4>==
6.6.5 DOSING DATA
DOSING DATA
LIMIT VALUES Integrat.range
INTERN
EXTERN
FEEDER1
..FEEDER2 Nominal load T/T Speed
== exit <F4>==
If in picture „Counterpulse“ the row „Pulse length“ is selected and key „ENTER“ is pressed, the adjustment of the length of the counting pulse output is provided.
Do not select a pulse length, which effects a pulse pause shorter than the pulse duration at „Nom. capacity“.
Adjustments, which can be selected under menu point „DOSING DATA“ .
6.6.5.1 Limit values of the dosing function
LIMIT VALUES
Max.difference SetValueNull Min-Set value
Deviation Control lim
exit <F4>==
Max.difference Value
in per mille 5.0% = 50
50
^
MAX
25.0%
MIN
0.0%
==
exit <F4>==
Selection picture for the limiting values which are important at „DOSING“.
Adjustment for the precision regulator. Determines, up to which deviation from the variable calculated the pilot signal for the weighing belt drive is corrected.
The deviation from 100% should be below 1% at all dosing set values (see „Text screen 1“ on page 12 and D/A channel „Drive WB“ on page72).
The precision regulator is set to 100.0%, if:
a „RESET“ is carried out.
the tacho frequency is lower than 1Hz.
the load „g3“ is under the minimal value. The minimal value is
determined by „Integrat.range“ resp. by „Control lim“ (see page 77).
15.12.04 3DWA170T2E.DOC Seite 75
SetValueNull Value
in per mille 2.0% 20
20
^
MAX
30.0%
MIN
0.0
== exit <F4>==
Min-Set value Value
in per mille 10.0% 100
100
^
MAX
50.0%
MIN
0.0
==
exit <F4>==
Deviation Value
in per mille 5.0% 50
50
^
MAX
500.0%
MIN
0.5
== exit <F4>==
Control lim Value
in per mille 33.3% 333
333
^
MAX
60.0%
MIN
0.3
==
exit <F4>==
If the set value is below the value adjusted here, set value = Null is used.
At a set value greater than „Set value-Null“ and the value adjusted here the error message „Bad set value“ comes (see page 16).
If the difference between set value and actual value is greater than the value adjusted here, the error message „Deviation“ comes (page 15).
Indication, up to which minimal load of the der measuring length („g3“) the speed of the driving motor is re-adjusted for keeping the set value.
If here a lower value is adjusted than the minimal value admissible by „Integrat.range“ (is automatically determined at „SETUP“; see page 40), at capacities under „Nom. capacity“ even at minor weight „g3“ the set value can be kept (until achieving the „Rated speed“ of the weighing belt).
15.12.04 3DWA170T2E.DOC Seite 76
6.6.5.2 Integration range
Integrat.range
Explanations to „Intergrat.range“ see on page 38.
30
X/10
ACT
^
30
X/10
MAX
100
MIN
10
== exit <F4>==
6.6.5.3 Sources of set value „Intern“ and „Extern“
INTERN (EXTERN) <F3>
Display
<ENTER>
Selection of the sources for the set values „INTERN“ resp. „EXTERN“. Description see page 42/43.
Display
== exit <F4>==
6.6.5.4 Feeder parameters
FEEDER1
Min-Limit Max-Limit DeadLength Funct. at off Feeder free
not activeactive active > MIN
== exit <F4>==
At a weigh feeder with controlled feeder „active“ or „active > MIN“ has to be adjusted.
The feeder parameters are offered also at data input and are described there (see page 43).
6.6.5.5 Adjustments for 3-point-step controller and continuous control device
FEEDER2
FeederActVal Steptime100% Feeder Area
From page 30 on the possibilities of feeding control at a scale with „DOSING“ and „Integrat.range“ > 10 are described. In picture „FEEDER2“ the parameters necessary thereto can be adjusted.
Readj.fact.
== exit <F4>==
15.12.04 3DWA170T2E.DOC Seite 77
FeederActVal <F3>
not active
<ENTER>
not active
== exit <F4>==
At continuously controlled dosing device a response synchro is required. Of the sources offered here can be employed:
BCD 1(2)
Profibus1(2)
A/D 1(2)
CV 1 - 4
The response by BCD-signal is complicated and therefore not recommendable.
By selecting a source of actual value for the positional response the control functions for continuously controlled dosing device and in text screen 2 the display „ZI“ are activated.
Steptime100%
0
^
ACT
0
MAX
400
MIN
0
== exit <F4>==
„Steptime“ indicates the duration of the controlling pulse at the 3-point-step controller at 100% control deviation (related to the weighing range). The duration of the controlling pulse reduces proportionally with the control deviation.
Scaling: 150 corresponds to 10 seconds.
Feeder Area Value
in per mille 3.0% = 30
30
^
MAX
60.0%
MIN
0.1%
== exit <F4>==
Percentage of the deviation, under which no controlling pulses are put out.
Scaling: 100% = 100% weighing range.
6.6.5.6 Source of set value for the feeder
Nominal load <F3>
not active
<ENTER>
not active
== exit <F4>==
Of the sources offered in the selection the following ones can be used for the load set value:
BCD 1(2)
100%
= 10.000
Profibus1(2)
100%
= 10.000
%FixedVal
100%
= 10.000
%Pre-set1(2)
100%
= 100,0
CV 0 - 3
100%
= 10 000
A/D 1(2)
100%
= 100,0%
If the load set value shall be adjusted via the „MODE“-selection under „Nominal load“, „%Pre-set1(2)“ has to be selected as source of set value.
15.12.04 3DWA170T2E.DOC Seite 78
6.6.5.7 The weighing belt speed at taring and at the test with test weight (test load)
T/T Speed Value
in per mille 60.0% = 600
600
^
MAX
75.0%
MIN
10.0%
==
exit <F4>==
The speed at taring and test load is determined by this parameter. The switching over from the operational speed to the speed adjusted here is done, if the load value „g3“ is less than the limiting value „Belt empty“.
If the weigh feeder is switched on and the set value is zero, the weighing belt stops. At empty weighing belt after the start of taring or test load - if the weigh feeder is switched on - the weighing belt begins to run with the speed adjusted here.
15.12.04 3DWA170T2E.DOC Seite 79
6.7 Priming charge
The weighing computer can be charged with the data of the factory-setting in parameterizing mode. This adjustment has to be charged in any case after a software-exchange.
After that the application-specific adjustments at „Data input“ and „KUK-SETUP“ have to be put in.
Proceedings at priming charge:
The driving motor of the scale must not be switched on.
Depending on the type of scale which shall be charged, different key-combinations have to be pressed.
Belt scale: F6 + F2
Weigh feeder: F6 + F3
While the key combination is pressed, press key „RESET“ at the rear of the device for about one second.
At releasing key „RESET“ the initialization picture appears with indication of the software version and date and
time.
Attention:
At the weighing electronics DWC-5A the tumbler switch SW6 has to be pressed to position „Res“ for at least one second in order to carry out a reset of the system.
****************
WAAGENFABRIK
KUKLA DWC-3B N1 A1.70
****************
07:21:36
01.Jul.2000
!!!KALTSTART!!!!
!!!COLDSTART!!!!
!!DEM A FROID!!!
RBW F6+F2
DBW F6+F3
After about 4 seconds the picture changes.
If an admissible key combination has been pressed and is still being pressed, the picture disappears after about one second and upper left in the display an indication is done according to the selected key combination.
R at belt scale
D at weigh feeder
The key combination must not be released before this indication is visible. The indication remains visible. Only by actuating key „RESET“ the proceeding of priming charge is terminated. For a short period the initialization picture is indicated and after that „MAINMENUE“.
If at the priming charge a key combination not admissible had been pressed or the run-off has not been kept correctly, after releasing the key combination not the empty screen - excepted the fade-in upper left - is remaining, but one of the pictures described above or „MAINMENUE“ is remaining at the display.
In this case no priming charge has been carried out and the proceeding of priming charge has to be repeated adhering to the proceeding described.
15.12.04 3DWA170T2E.DOC Seite 80
6.8 Data securing/RESET
The weighing computer has a back-up memory, which has to be charged with the actual parameters after a parameter change. b
In order to be able to start the data securing, in „MAINMENUE“ key „F4“ has to be pressed.
DATA SECURING ?
YES
NO
This picture can only be left if one of the two possibilities is selected with key „F3“ and confirmed with key „ENTER“.
If parameters had been changed and no data securing has been carried out, at normal operation the error message „programmFLASH“ comes.
If „YES“is selected, the data securing is carried out.
****************
FLASH delete
Deleting FLASH PROM lasts about 2s. After that for about 1s „FLASH programming“ is indicated.
During the data securing the functions of the scale are blocked.
****************
****************
MAINMENUE----
Please reverse parameterizing switch.
<F2> return
****************
By reversing the parameterizing switch downwards the normal operation mode is achieved.
By pressing key „F2“ it is possible to return to „MAINMENUE“.
6.8.1 RESET
The weighing electronics carries out a „RESET“ , if either
the mains supply is switched on (after an interruption) or
key „RESET“ at the rear of the device is pressed.
15.12.04 3DWA170T2E.DOC Seite 81
6.9 Re-charge
In case of a data loss the data deposited in the back-up memory are transferred into the main (parameter) memory. Thereby the re-charge counter „NC“ in picture „AD/SYS“ (callable under „CONTROL“) +1 is counting and the error message „Data lost“ is activated (see page 16).
The error message „Data lost“ can be deleted - like all the other stored error messages - by the binary input „Delete err.“ or in picture „Error“ (normal operation mode, key „F2“).
In picture „FLASH-PROM“ under „CONTROL“ (only in parameterizing mode) it is possible to transfer the data deposited in the back-up memory into the main memory. This is meaningful if after „priming charge“ the adjustment of the scale shall be brought to the previous state.
In order to transfer the adjustment of the back-up memory into the main memory, „Prog Nenn“ has to be selected and then key „ENTER“ has to be pressed.
That the transfer has taken place, can be seen thence that the check sum „RA“ has been adjusted equal to that of „FP“.
The re-charge counter „NC“ is set to zero at the manual re-charge.
„Re-charging“ is not admissible after a software exchange. In this case it is not ensured, that the parameters are transferred correctly from the back-up memory to the parameter memory.
6.10 Marker for the weigh channel adjustment:
The calibrated value of the weigh channel remains even then, if at the material test or at the test load in case of a deviation the possibility for correction is used.
At the area weight correction both the calibration adjustment and the change carried out in course of a correction at material test or test load are remaining.
Thus it is possible to put the correction limits in relation to the basic calibration. An adjustment of the working-Span („SPAN 100%“) against the calibration value („UR SPAN“) over the limits indicated therefore is not possible.
Under „ActualParamet“ in picture 5 the weigh channel adjustments are indicated.
<WeighChannel
>
SPAN 100% actually used WC-SPAN (working span)
SEC AD Marker for changes at the area weight correction
BASIC AD Value of the basic calibration
OFFSET 0%
18568
SPAN 100%
29242
SEC AD
29242
BASIC AD
29242
The correction possibility at test load and material test is limited with „Lim.of correc.“.
At the area weight correction „SPAN 100%“ is limited to 50% up to 200% related to „UR SPAN“.
The change carried out at the area weight correction of „SPAN 100%“ against „SICHAD“ is cancelled at the material test and test load.
15.12.04 3DWA170T2E.DOC Seite 82
7 Technical data
DISPLAY : LCD-graphic display with112*128 dots, background-lighted
Keyboard : 7 pcs. foil keys with multiplexing
Control inputs
Number : 4
Design : 12-28VDC, ca. 10mA at 24V,
galvanically isolated.
Application : Freely parameterizable
(I/O-CARD 1,
U1-U4)
Interruption inputs
Number : 2
Design : 12-28VDC, ca. 10mA at 24V,
galvanically isolated.
Application: STRINT = tacho pulse
(10 .... 1000Hz)
SYNCH = control pulse for
ABSOLUTE TARE and
belt slip monitoring (min. 10ms).
BCD-data inputs
Number : 2 (only with I/O-CARD 2)
Design : 4-digit; 4 data lines, 4
Scan-lines. Decoupling
via diodes.
maximal cable length 300m
Application: pre-set values.
Control outputs
Number : 2 (with I/O-CARD 2 altogether 6)
Design : Relay- make contact
max 60V/150mA
I/O-CARD 1 (K1/K2)
I/O-CARD 2 (K3-K6)
Application: Freely parameterizable
Counting pulse output
Design : Potential free electronic
make-contact, max. 60VDC/150mA
Load cell supply
Design : 10VDC with SENCE-input for
5-conductor-wiring.
Maximal load 120mA
Weighing signal conversion
Design : 24Bit A/D-converter, used
range about 73.000,
about 12.000 of them OFFSET.
Analog inputs
Number : 2
Design : 16Bit A/D-converter,
parameterizable 0(4)...20mA or
0(2)...10V
Application: Analog pre-set value.
Analog outputs
Number : 1, with I/O-CARD 2 altogether 4
Design : 1 pce. 8Bit D/A-converter on the
I/O-CARD 1, 3 pcs. 10Bit D/A-
converter on the I/O-CARD 2.
mA and voltage output usable at
separate connections at the same
time
parameterizable 0...20mA/0...10V
or 4...20mA/2...10V.
Application: Freely parameterizable
Reference voltage
+10V, max. 30mA
Voltage supply for external devices
+5V, max. 100mA +15V, Max 30mA -15V, Max 30mA
RS232 interface
Application: Printer output counter „B“ (is put
out automatically at batch
operation).
Parameter output
WeighChannel
15.12.04 3DWA170T2E.DOC Seite 83
Profibus DP-Interface
Application : Transfer of all operation data and of the most important parameters.
Battery-RAM
Write/read memory (32K) with integrated battery (SRAM) and real-time-clock. The durability of the battery is at least 10 years. Then the SRAM should be re-newed.
A battery which is working no longer can be recognized, if after an interruption of supply tension the error message „Data lost“ comes and the counters were re-set to zero.
Mains voltage failure
Parameterizing, count of counters and zero reset remain unlimited in case of a working battery in the SRAM.
Mains connection
Voltage: 115-230VAC, 50/60Hz;
. 110-250VDC.
Consumption: 0.39/0.2A
Inrush current: approx. 20A
Fuse: 2Atr. (5x20mm)
Ambient conditions
Temperature: 0 - 40°C
Storage : -20 to 70°C
Air moisture: Class F (DIN 40 040)
Immunity from acc. to prEN 50082-2:1992
interference.:
Radio shielding: acc. to EN 55011:1991 Class B,
Group 1
Type of protection
Front unit: IP50
with protective
window: IP55
Housing: IP 20
Terminals: IP 20
Dimensions
Front unit:
144 x 144mm
(width x height)
Installation depth:
maximal 230mm
Switchboard
cut-out
138 x 136mm
(width x height)
15.12.04 3DWA170T2E.DOC Seite 84
8 Catchwords
Analog outputs
19
Re-charging
81
Analog input channels 1 and 2
70
Rated data
64
Analog measured values and system data
19
Net calculation
34
Analysis
22
Parameterizing of the weighing computer
29
Display-unit of capacity
68
Check- and maintenance mechanisms
24
Output of the actual parameter adjustment
23
Test with test weight (test load)
27
BCD-inputs
74
Calculating unit
58
Consideration of material moisture
57
Shifting register
62
Picture for batch weighing
9
Belt slip monitoring
69
Picture for fleece plants
11
Serial interfaces
53
Picture for standard designs
8
Simulation
52
Binary- and BCD-inputs
21
Source of set value for the feeder
78
Binary inputs U1-U5:
74
Sources of set value „Intern“ and „Extern“
77
Batch operation mode
55
Special operation mode „FLEECE“
56
Log book
63
Status Report
18
Data input
38
Taring
24
Data securings
81
Technical data
83
Contact outputs
19
Test
26
Dosing data
75
Text screen 1
12
I/O CARDS
69
Text screen 2
13
Adjustment pictures „Error“
68
Transfer values
63
Adjustment of the clock
17
and at the test load
79
Adjustments for the test load
66
Priming charge
79
Errors
13
Pre-sets/LOG
17
Error handling
67
Scale data
58
Error memory
68
Selection of taring (taration) mode
66
Precision regulator
77
Selection of the display picture (GraphScreen) 55
Area weight correction
29
Maintenance
24
Flash-Prom
52
Weighing belt speed at tare and test
79
Graphic screens
8
Weigh channel
69
Limit values of the dosing function
75
Counting pulse output
74
Limit values
64
Feeder parameter
77
Main menu
37
Integration range
77
Communication
21
Contact output
„Ready to op“
67
Contact output
„Error“
67
Contact outputs
74
Control
18/51
Kuk-Setup
53
Linearization of the measuring signal
58
Log book
18
Material test
26
Marker for the weigh channel adjustment:
82
15.12.04 3DWA170T2E.DOC Seite 85
9 Parameter index
The most important parameters are offered for adjustment at „Data input“ (see page 38). Access to all parameters is provided in „KUK-SETUP“ (see from page 53 on).
The following list shows in which sub-menus of
„KUK-SETUP“ the parameters can be found. ,
Parameter
Remark
1st level
2nd level
Page
A/D-Channel 1(2)
Analog input
I/O-CARDS
70
DISPLAY
GraphScreenSelect
SYSTEM 1
55
Display-Unit
kg(t)/h
SCALE DATA
68
Working width
Fleece plants
SYSTEM 1
FLEECE
57
Belt width
Fleece plants
SYSTEM 1
FLEECE
57
Belt length
Endless length
SCALE DATA/
BELT DATA
39/58
RATED DATA
BCD 1(2)
BCD-inputs
I/O-CARDS
74
Operation language
For indications
MAINMENUE
37
Ready to op
Contact output
SCALE DATA
ERRORHANDLING
67
ChargeExtern
Source of set value
SYSTEM 1
Charge
46/55
ChargeIntern
Source of set value
SYSTEM 1
Charge
46/55
D/A-Channel 1 - 4
Analog outputs
E/A-KARTEN
72
DOSING
TYPE SCALE
SCALE DATA/
TYPE SCALE
38 / 64
RATED DATA
EXTERN
Dosing set values
DOSING DATA
EXTERN
42/77
Fabric.number
Serial no. of the scale
SCALE DATA
RATED DATA
50/64
Errortime 1-2-3
Error messages
SCALE DATA
ERRORHANDLING
68
MOISTURE
Calculation
SYSTEM 1
57
FixedVal
Pre-set values
SYSTEM 2
VAL
62
Area weight
FLEECE
SYSTEM 1
FLEECE
56
Funct. at off
Feeder controller
DOSING DATA
FEEDER 1
45/77
g2-Length
for P2-Capacity
SCALE DATA/
BELT DATA
39/64
RATED DATA
g3-Length
Discharge delay
SCALE DATA/
BELT DATA
39/64
RATED DATA
Pulse length
Counting pulse
I/O-CARDS
Counting pulse
74
Integrat.range
Adjustment range
DOSING DATA
77
INTERN
Dosing set values
DOSING DATA
42 / 77
ITG-xxx
Averagings
SYSTEM 1
INTEGRATION
53
K_0/MAX/MIN
Limit values
SCALE DATA
LIMIT VALUES
64
Belt load
for relay outputs
15.12.04 3DWA170T2E.DOC Seite 86
Parameter
Remark
1st level
2nd level
Page
COMMUNICATION
Ser. interface
CONTROL
COMMUNICATION
21 / 51
Lim.of correc.
Test with test weight
SCALE DATA
TEST
66
LinearTAB 1(2)
Linearization WC
SYSTEM 1
LINEARIZTN.
58
Log book
SYSTEM 2
63
Max Load
limiting value
SCALE DATA
LIMIT VALUES
64
Max.difference
Fine regulator
DOSING DATA
LIMIT VALUES
77
Max-Limit
Feeder controller
DOSING DATA
FEEDER 1
44 / 77
MultiScaleW
max. 4 rated ranges
SYSTEM 1
55
Min Load
limiting value
SCALE DATA
LIMIT VALUES
64
Min-Limit
Feeder controller
DOSING DATA
FEEDER 1
44 / 77
Min-Set value
Dosing range
DOSING DATA
LIMIT VALUES
76
Post-Runtime
Batch operation
SYSTEM 1
CHARGE
55
Readj.fact.
Feeder controller
DOSING DATA
FEEDER 1
45 / 77
Rated freque.
Hz at n-max.
SCALE DATA
RATED DATA
39 / 48
Rated speed
v at n-max.
SCALE DATA
RATED DATA
31 / 64
Nom. capacity
Scale range
SCALE DATA
RATED DATA
38 / 64
OPTO IN
Binary inputs
I/O-CARDS
46 / 74
PB-DP Address
Profibus address
MAINMENUE/
PROFIBUS DP
50 / 53
(not in KUK-SETUP)
COMMUNICATION
PLC1/2
Calculating unit
SYSTEM 2
58
TestWeight TW
%-indication
SCALE DATA
TEST
66
Deviation
Tolerance dosing
DOSING DATA
LIMIT VALUES
61
Control lim
Range enlargement
DOSING DATA
LIMIT VALUES
75
Relay
Contact outputs
I/O-CARDS
48 / 74
Slip tacho
Monitoring
SCALE DATA
69
s-FIFO
Shifting register distance
SYSTEM 2
FIFO
62
SIMULATION
CONTROL
52
Scaling 1-2-3
FLEECE
SYSTEM 1
FLEECE
56
Nominal load
Source selection
DOSING DATA
78
SetValueNull
Dosing range
DOSING DATA
LIMIT VALUES
75
Memory
Error marker
SCALE DATA
ERRORHANDLING
68
Language/LANG
Selection of language
MAINMENUE
37
(not in KUK-SETUP)
Error
Contact output
SCALE DATA
ERRORHANDLING
67
Sub-g
Net calc. series feeding
SYSTEM 2
FIFO
61
SV-Integr.
Set value integrator
SYSTEM 1
INTEGRATION
54
T/T Speed
Speed set value
DOSING DATA
79
Steptime100%
3-point-step controller
DOSING DATA
FEEDER 2
78
Tarat.mode
Mean Value/ Absolute
SCALE DATA
66
Tare
Taration Err.
Admissible tolerance
SCALE DATA
LIMIT VALUES
66
t-FIFO
Shifting register time
SYSTEM 2
FIFO
62
15.12.04 3DWA170T2E.DOC Seite 87
Parameter
Remark
1st level
2nd level
Page
DeadLength
Feeder controller
DOSING DATA
FEEDER 1
45 / 77
TransValue1(2)
Prog. data sources
SYSTEM 2
VAL
63
Belt empty
Limiting value belt load
SCALE DATA
LIMIT VALUES
64
for messages
WC-OFFSET
WeighChannel
I/O-CARDS
WeighChannel
50 / 69
WC-SPAN
WeighChannel
I/O-CARDS
WeighChannel
50 / 69
Counterpulse
Valency
I/O-CARDS
33
DisableCount
A, B, Pulse output
SCALE DATA
LIMIT VALUES
77
Feeder Area
Feeder controller(3-P-S)
DOSING DATA
FEEDER 2
77
Feeder free
Feeder controller
DOSING DATA
FEEDER 1
45/76
FeederActVal
Feeder controller
DOSING DATA
FEEDER 1
77
15.12.04 3DWA170T2E.DOC Seite 88
sergio baldivieso orozco