Replacing A Power Module With Enabled Safety Function - Siemens SINAMICS G120 Operating Instructions Manual

10.6

Replacing a Power Module with enabled safety function

Procedure
To replace the Power Module, proceed as follows:
1. Disconnect the line voltage to the Power Module.
2. Remove the connecting cables of the Power Module.
3. Remove the Control Unit from the Power Module.
4. Replace the old Power Module with the new Power Module.
5. Mount the Control Unit onto the new Power Module.
6. Connect up the new Power Module using the connecting cables.
7. Switch on the line supply and, if necessary, the 24 V supply for the Control Unit.
8. Perform a reduced acceptance test, see the Section Reduced acceptance (Page 315).
You have successfully replaced the Power Module.
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
You must not disconnect the external 24 V supply (if installed) to the Control Unit.
DANGER
Risk of electric shock from touching inverter connections
After the power supply has been switched off, it takes up to 5 minutes until the
capacitors in the inverter have discharged enough for the residual voltage to be non-
hazardous.
• Check the voltage at the inverter connections before you carry out any installation
work.
NOTICE
Material damage from swapping the motor's connection lines
The direction in which the motor rotates switches if you swap the two phases of the
motor line.
• Connect the three phases of the motor lines in the right order.
• After replacing the Power Module, check the direction in which the motor rotates.
10.6 Replacing a Power Module with enabled safety function
Corrective maintenance
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