Siemens SINAMICS G120D Original Instructions Manual page 281

21.Switch on the inverter power supply again (power on reset).
22.Perform a reduced acceptance test, see the section Reduced acceptance test after
You have replaced the Control Unit and transferred the safety function settings from the
operator panel to the new Control Unit.
Converter with control units CU250D-2
Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
component replacement (Page 296).
10.3 Replacing a Control Unit with enabled safety function
Corrective maintenance
281