Technical data

CU230P-2 Control Units, Getting Started
A5E02484096, 05/2009
5
3.2 Snap the Control Unit onto the Power Module
Snap the Control Unit onto the Power Module
Plug the Control Unit
onto the Power
Module as shown. All
the necessary
electrical connections
are made between
the two components.


If you want to remove
the Control Unit, press
the unlatching button
on the Power Module
③. You can then tilt
the Control Unit
forwards and remove
it from the Power
Module.

Screening kit for the Control Unit
A screening kit is available for the Control Unit. This allows easy bonding of control
cable shields for connection to the Control Unit potential. The set must be attached
to the Control Unit by means of an M3 screw (supplied with the kit).
Regardless of whether or not a shield connection kit is used, the Control Unit is
connected to the reference potential of the Power Module as soon as it is snapped
onto the module.
Retain the shield connection kit
WARNING
If 230 V relays are controlled from the digital outputs DO0 and DO2, then these must always be switched into a no-voltage
condition before the Control Unit is removed from the Power Module. The reason for this is that when the Control Unit is
removed, the connection to the protective conductor is interrupted.