Steps For Replacing The Inverter - Siemens SINAMICS G120 Operating Instructions Manual

Servicing and maintaining

9.2 Steps for replacing the inverter

9.2 Steps for replacing the inverter
We recommend that you save your settings of the inverter after commissioning to an
external device. You find information about saving the inverter settings in the section Data
backup and series commissioning (Page 71).
If the settings are not saved to an external device, you will have to recommission the inverter
when it is replaced.
Procedure for replacing the inverter with a memory card
● Disconnect the line voltage of the inverter.
Risk of electrical shock!
Hazardous voltage is still present for up to 5 minutes after the power supply has been
switched off.
It is not permissible to carry out any installation work before this time has expired!
● Remove the connectors for line, motor and braking resistor of the inverter.
● Remove the signal cables of the inverter.
● Remove the defective inverter.
● Mount the new inverter.
● Remove the memory card from the old inverter and insert it in the new inverter.
● Reconnect the signal cables of the Control Unit.
● Reconnect the connectors for line, motor and braking resistor of the inverter.
● Connect up the line voltage again.
● The inverter adopts the settings from the memory card, saves them (protected against
● For inverters of the same type and an equal or higher firmware version, you can switch
248
DANGER
power failure) in its internal parameter memory, and switches to "ready to start" state.
on the inverter without any additional commissioning.
Alarm A01028 will be output for inverters of different types. This alarm indicates that the
parameter settings are not compatible with the inverter. In this case, delete the message
using p0971 = 1 and recommission the drive.
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
SINAMICS G120C Inverter