Siemens SINAMICS S120 Manual page 193

Removing the Control Unit
Removing the CU310 from the Power Module PM340 (frame size FSD)
In order to remove the Control Unit from the Power Module, the blue release lever, as shown
in the diagram, must be pressed downwards and the Control Unit swung-out to the front.
AC Drive
Manual, (GH6), 07/2007 Edition, 6SL3097-2AL00-0BP2
6.2 Control Unit CU310 DP (PROFIBUS)
Control Units
193