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System Manual
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PDM360NG (CR1080, CR1081, CR9042) Target V01
2011-07-28
Configurations
Function configuration of the inputs and outputs
74
5.5.3
Configure inputs
Safety instructions........................................................................................................................74
Digital inputs.................................................................................................................................75
Analogue inputs............................................................................................................................76
Input I1 ......................................................................................................................................77
3973
Safety instructions
7348
For use of non-electronic switches please note the following:
NOTE
Contacts of Reed relays may be clogged (reversibly) if connected to the device inputs without series
resistor.
►
Remedy:
Install a series resistor for the Reed relay:
Series resistor = max. input voltage / permissible current in the Reed relay
Example:
32 V / 500 mA = 64 Ohm
►
The series resistor must not exceed 5 % of the input resistance RE of the device input
data
sheet). Otherwise, the signal will not be detected as TRUE.
Example:
RE = 3 000 Ohm
max. series resistor = 150 Ohm