Figure 9-11 Releasing Screw Connections - Siemens SINAMICS GM150 Operating And Installation Instructions

Preparation
1. Detach the fiber-optic cables for the IGBT power semiconductors on the front and rear of
2. Disconnect the auxiliary power supply for the gating boards from the rear.
3. On each IGBT, remove the six screw connections
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017
the PowerCard.
②
screw connection between the phase busbar and the neutral potential.
Figure 9-11 Releasing screw connections
①
between the phase busbars and the
Maintenance
9.7 Repairs
215