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ifm
Programming Manual BasicController relay CR0431 v03.03.00
05 / 2018
Configurations
Function configuration of the inputs and outputs
4.4.3
Configure outputs
Configure the software filters of the outputs ...........................................................................................48
Relay outputs ..........................................................................................................................................49
LED outputs ............................................................................................................................................49
3976
Valid operating modes
→ chapter
Possible operating modes inputs/outputs
(
>
Configure the software filters of the outputs
15421
Via the input FILTER in the FB
OUTPUT
(
) a software filter can be configured which filters the
measured output current at the PWM outputs.
The FILTER byte is only valid for outputs with current measurement.
For outputs without current measurement: set FILTER = 0!
The current at the output is averaged over a PWM period.
If dithering is set, the current is averaged over the dither period.
The filter behaves like a low-pass filter; the limit frequency is set by the value entered in FILTER. For
FILTER, values from 0...8 are permitted.
Table: limit frequency software low-pass filter on PWM output
FILTER
Filter frequency [Hz]
Step response [ms] for ...
Remarks
0…90 %
0…95 %
0…99 %
0
Filter deactivated
outputs without current
measurement
1
600
0.8
1.0
1.4
2
233
1.8
2.2
3.4
3
109
3.6
4.6
7.0
4
52
7.2
9.4
14.4
recommended
5
26
14.6
19.0
29.2
6
13
29.4
38.2
58.6
7
6
58.8
76.4
117.6
8
4
117.8
153.2
235.4
The following statements of the step response are relevant:
• Output current:
0...90 % and 0...99 %
Figure: time sequence binary current signal on output upon switch-on / switch-off
Summary of Contents for BasicController CR0431
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