Relay Output Terminals - REXROTH VFC 3610 Quick Start Manual

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Electric Installation

Relay output terminals

When relay output terminals are connected with inductive loads (relays, contac-
tors, solenoid valves, motors, etc.), following noise suppression circuits need to
be applied at the coils of the inductive loads, as close as possible to the induc-
tive loads, in order to reduce the electromagnetic interference generated from
inductive load action.
Tb Shared terminal
Tc Normally closed contact
Ta Normally open contact
Fig. 2-9: Noise suppression circuits for relay output terminals
Bosch Rexroth AG R912005518_Edition 16
Rexroth Frequency Converter VFC
RC RC filtering
VDR Varistor
D Diode
3610 / VFC 5610