4.1.3 Electromechanical components
Surge voltage protection circuit
● Connect surge voltage protection circuits to the following components:
– Coils of contactors
– Relays
– Solenoid valves
– Motor holding brakes
● Connect the surge voltage protection circuit directly at the coil.
● Use RC elements or varistors for AC-operated coils and freewheeling diodes or varistors
for DC-operated coils.
Installing
4.1 EMC-compliant setup of the machine or plant
Converter with the CU230P-2 Control Units
62 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE
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