43
ifm
Programming Manual BasicController relay CR0431 v03.03.00
05 / 2018
Configurations
Function configuration of the inputs and outputs
>
4.4.2
Configure inputs
Safety instructions about Reed relays ....................................................................................................43
Analogue inputs: configuration and diagnosis ........................................................................................44
Binäry inputs: configuration and diagnosis .............................................................................................46
Fast inputs ..............................................................................................................................................47
3973
Valid operating modes
→ chapter
Possible operating modes inputs/outputs
(
>
Safety instructions about Reed relays
7348
For use of non-electronic switches please note the following:
6915
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
Summary of Contents for BasicController CR0431
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