General Interference Suppression Measures For Relays, Contactors, Switches, Chokes And In Ductive Loads - Bosch Rexroth IndraDrive CsDrive System with HCS01 Project Planning Manual

180/341 Bosch Rexroth AG
Mounting and installation
General interference suppression measures for relays, contactors, switches, chokes and in‐
ductive loads
If inductive loads, such as chokes, contactors or relays are switched by con‐
tacts or semiconductors in conjunction with electronic devices and compo‐
nents, suitable interference suppression has to be provided for them:
● By arranging free-wheeling diodes for DC operation
● By arranging commercial RC interference suppression elements based
on contactor type directly on the inductance for AC operation
Only the interference suppression element arranged immediately on the in‐
ductance serves this purpose. Otherwise, the emitted noise level is too high
and can affect the function of the electronic system and the drive.
DOK-INDRV*-HCS01******-PR05-EN-P
Rexroth IndraDrive CsDrive Systems with HCS01