Wiring - Siemens SIMATIC ET 200R Manual

Wiring

Note
If equipotential bonding is necessary, never under any circumstances use the
shield!
If necessary, secure this with an M4x8 screw in existing threading to the bottom of
the ET 200R.
Note
Low safety voltage (SELV/PELV in accordance with EN 60950) must be used for all
power and signal voltages.
Caution
To avoid damaging module electronics, all voltages for the ET 200R must be
turned off (i.e., de-energized) before the modules are installed or removed.
Special features of wiring
• With the exception of actuator/sensor signals, all voltage and signal lines are in-
stalled in one cable.
• Actuator/sensor channels can be divided by Y plug connectors.
• When the digital input on the back is used, this channel must remain uncircuited
on the front (pin X7.2 not used).
Grounding
For EMC reasons, the shield of the hybrid line must be applied on both ends over a
large surface. (Metal plug connector housing and shield bar in the switching cabinet
or flange socket in the switching cabinet.)
Ensure a low-ohmic connection of the shield on the cabinet side.
Distributed I/O Device ET 200R
(4)J31069-D0427-U001-A2-7618
Wiring
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