Replacing The Control Unit; Replacing The Control Unit For Basic Line Modules, Smart Line Modules, Active Line Modules, And Motor Modules In Chassis Format - Siemens SINAMICS S120 Equipment Manual

6.4.9

Replacing the Control Unit

6.4.9.1 Replacing the Control Unit for Basic Line Modules, Smart Line Modules, Active Line
Modules, and Motor Modules in chassis format
The CU320 Control Unit is mounted on a slide-in unit that can be pulled out by removing a
screw on the top left (1) if the CU320 needs to be replaced.
Figure 6-17
Preparatory steps
● Observe the "five safety rules".
● Remove the protective cover.
● Allow unimpeded access.
Removal steps
1. Remove the nut (1).
2. Before pulling out the Control Unit on the slide-in unit completely, remove all cables
3. Pull out the Control Unit on the slide-in unit and install the new one.
CAUTION
When removing the Control Unit, ensure that you do not damage any cables.
Note
When installing the new CU320, you must reconnect the cables to the same positions.
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A
Replacing the CU320 Control Unit
connected to the Control Unit.
Maintenance and servicing
6.4 Replacing components
275