Siemens SINAMICS G220 - Opening the Ground Connection of the Integrated Line Filter, Degree of Protection IP55

WARNING
Electric shock as a result of a residual charge in power components
After the power supply has been switched o󹪜, it takes up to 5 min. until the capacitors in the
converter have discharged so that the residual charge is at a non-hazardous level. Touching live
components can result in death or severe injury.
• Check that there is absolutely no voltage between any of the power connections, or
between them and the protective conductor connection.
Procedure
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Figure7-11 Removing the screw for functional grounding (example: Converter with frame size FSC)
Proceed as follows to open the ground connection of the integrated line 󹪝lter:
1. Open the protective 󹪞ap at the converter housing, e.g. using a slotted screwdriver.
2. Release the screw for the ground connection and remove it.
7.1.6 Opening the ground connection of the integrated line 󹪝lter, degree of
protection IP55
Overview
When connecting the converter with integrated line 󹪝lter to an IT line system, the ground
connection of the integrated line 󹪝lter must be open.
Connecting
7.1Line system, motor and braking resistor
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB 167