Siemens SINAMICS G120 Operating Instructions Manual page 272

Servicing and maintaining
11.2 Steps for replacing the inverter
Procedure for replacing the converter without a memory card
● Disconnect the line voltage of the converter.
Dangerous voltage!
Hazardous voltage is still present for up to 5 minutes after the power supply has been
switched off. Do not to carry out any installation work before this time has expired!
● Remove the connectors for line, motor and braking resistor of the converter.
● Remove the signal cables of the converter.
● Remove the defective converter.
● Mount the new converter.
● Reconnect the signal cables of the converter.
● Reconnect the connectors for line, motor and braking resistor of the converter.
● Connect up the line voltage again.
● The converter goes into the "ready-to-switch-on" state.
● If you have saved your settings:
● If you did not save the parameter setting, you have to recommission the drive.
Inverter with enabled safety functions
If you replace an inverter with enabled safety functions, then you also need to confirm the
safety function settings on the new inverter. You will find the procedure in Section: Data
backup and series commissioning (Page 247).
270
DANGER
– Load the settings from the Operator Panel or via the STARTER in your converter.
– For converters of the same type and an equal or higher firmware version, you can now
switch on the motor. Check the function of the motor.
Alarm A01028 will be output for converters of different types. This alarm indicates that
the parameter settings are not compatible with the converter. In this case, delete the
message using p0971 = 1 and recommission the drive.
SINAMICS G120C frequency converter
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB