Siemens SINAMICS G120 Operating Instructions Manual page 179

CU swap, PM swap (whether PM nor CU powered)
Constraints: MMC with valid Parameter set plugged
● Swap after power on detected, Parameter MMC -> RAM/EEPROM, inverter runs into
● Confirmation for standard CU or acceptance test in case of fail-safe CU required
constraints: no MMC
● Swap after power on detected, Parameter EEPROM -> RAM, inverter runs into F0395
● Commissioning recommended - otherwise inverter runs with parameter settings from
● Confirmation for standard CU or acceptance test in case of fail-safe CU required
PM swap (CU externally powered)
Constraints: MMC with valid Parameter set plugged
● Swap detected, Parameter MMC -> RAM/EEPROM, inverter runs into F0395
● Confirmation for standard CU or acceptance test in case of fail-safe CU required
Constraints: no MMC
● Swap detected, Parameter EEPROM -> RAM, inverter runs into F0395
● If the parameters, already held in the EEPROM are ok there is no commissioning
● Confirmation for standard CU or acceptance test in case of fail-safe CU required
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
F0395
EEPROM
necesarry.
Note
After a PM swap without MMC the parameter settings only stored in RAM will be lost
Operation
6.3 Start-up Behavior
6-9