Operating Manual CMGZ411/421
37
Find offset feedback channel A resp. channel B CMGZ421
Purpose:
By pressing the enter key for 3 seconds, the actually measured value is stored as an offset value.
This function is used to compensate the weight of the roller and of the material.
Calibration gain feedback channel A resp. channel B CMGZ421
Purpose:
This parameter allows to adjust the display value to a value which is corresponding to the loaded
weight (= web tension).The microprocessor calculates a new gain factor in the background while
the display shows the feedback. The gain factor is changed by the up and down keys and stored
with
↵
key. The gain factor adjusted can be seen under Parameter „Value gain feedb. channel A“
resp. „Value gain feedb. channel B“.
Calibration gain 1 channel A resp. channel B CMGZ421
Purpose:
This parameter allows to adjust the display value to a value which is corresponding to the loaded
weight (= web tension).The microprocessor calculates a new gain factor in the background while
the display shows the feedback. The gain factor is changed by the up and down keys and stored
with
↵
key. The gain factor adjusted can be seen under Parameter „Value gain 1 channel A“ resp.
„Value gain 1 channel B“. Gain switching is activated by digital input 3 (terminal b6).
Lowpass-instrument A+B CMGZ421
Purpose:
The control unit provides a low-pass filter for the tension feedback to suppress noise caused by
unbalanced rollers or interference. The signal conditioned with this filter is used for the control
loop. With this parameter, the cutoff frequency in Hz is set. It must be ensured that the feedback
cutoff frequency is not lower than needed for the controller dynamics.
Range:
0.1
to
10.0
Default:
1.0
Increment:
0.1
Unit:
[Hz]
Lowpass-instrument A CMGZ421
Purpose:
The control unit provides a low-pass filter for the tension feedback to suppress noise caused by
unbalanced rollers or interference. The signal conditioned with this filter drives a 0-5V analogue
output signal. With this parameter, the cutoff frequency in Hz is set.
Range:
0.1
to
50.0
Default:
1.0
Increment:
0.1
Unit:
[Hz]
Lowpass-instrument B CMGZ421
Purpose:
The control unit provides a low-pass filter for the tension feedback to suppress noise caused by
unbalanced rollers or interference. The signal conditioned with this filter drives a 0-5V analogue
output signal. With this parameter, the cutoff frequency in Hz is set.
Range:
0.1
to
10.0
Default:
1.0
Increment:
0.1
Unit:
[Hz]
Содержание CMGZ411
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