Replacing A Power Module With Enabled Safety Function - Siemens Sinamics G120 Function Manual

7.3.4

Replacing a Power Module with enabled safety function

Danger from touching energized Power Module connections
After switching off the line voltage, it will take up to 5 minutes until the capacitors in the Power
Module are sufficiently discharged for the residual voltage to be safe. Death or serious injury
will result if energized parts are touched.
● Check the safe isolation of the Power Module connections before carrying out installation
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. A motor running backwards may damage the machine or installation.
● Connect the three phases of the motor lines in the right order.
● After replacing the Power Module, check the direction of motor rotation.
Procedure
To replace the Power Module, proceed as follows:
1. Switch off the line voltage of the Power Module.
You can leave any external 24 V supply to the Control Unit switched on.
2. Remove the connecting cables of the Power module.
3. Remove the Control Unit from the Power Module.
4. Replace the 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. The inverter reports F01641.
9. Perform a reduced acceptance test.
(Page 366)
You have successfully replaced the Power Module.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
7.3 Replacing components of the SINAMICS G120 or G120D inverters
DANGER
work.
Reduced acceptance after a component has been replaced and a firmware change
Corrective maintenance
341