Diode Protection; Power Connection - Siemens Pointek CLS200 Operating Instructions Manual

Wiring
6.3 Solid-state switch
6.3.1

Diode protection

When driving an external relay with either the solid-state switch and/or relay outputs using
DC power, protection diodes must be connected in the correct polarity across the relay coil to
prevent possible switch/relay damage resulting from inductive spikes generated by the relay
coil.
Customer-supplied diode protection
① Relay coil
② Customer-supplied diode protection
6.3.2

Power connection

Nominal
V DC
R
Connect protective earth wire to terminal provided in housing and marked with
32
Customer-supplied diode protection
24 V DC
22 to 26 V
120 Ω
Operating Instructions, 05/2021, A5E47827796-AA
48 V DC
46 to 50 V
234 Ω
Pointek CLS200/CLS300 standard