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The following figure shows the connection of the module:
1
I/O bus
2
Switchgear cabinet earth
2022/01/31
NOTICE!
Risk of damaging the PLC modules!
Overvoltages and short circuits might damage the PLC modules.
–
Make sure that all voltage sources (supply voltage and process supply
voltage) are switched off before you begin with operations on the system.
–
Never connect any voltages or signals to reserved terminals (marked with
---). Reserved terminals may carry internal voltages.
NOTICE!
–
If the relay outputs have to switch inductive DC loads, free-wheeling diodes
must be circuited in parallel to these loads.
–
If the relay outputs have to switch inductive AC loads, spark suppressors
are required.
3ADR010278, 3, en_US
Device specifications
I/O modules > Digital I/O modules
343
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