Replacing The Phase Module - Siemens Sinamics GM150 6SL3835-2LN44-2AA0 Operating And Installation Instructions

Maintenance
9.5 Repair
9.5.5.2

Replacing the phase module

In the power unit, the power semiconductor modules (IGCT), gating boards and balancing
resistors are arranged on phase modules. A power unit comprises three phase modules. The
IGCT phase module is a replaceable unit. The weight is > 250 kg. The entire IGCT phase
module must be withdrawn from the drive so that it can be repaired.
Required tools
● A suitable, flat cooling water catchment tray with a capacity of at least seven liters for
● Open-ended spanner (16 mm, 18 mm, 22 mm)
● Socket spanner set
Removing a phase module
Prepare the changing deviceas described in Section "Attaching the changing device to the
stacker (Page 196)".
Preparation
1. Remove the electrical connections from the lifting solenoids
2. Loosen the screws connecting the central brace with the frame of the cabinet, and remove
198
draining the drive
the central brace.
Figure 9-14 Lifting solenoid
③
.
SINAMICS GM150 6SL3835-2LN44-2AA0
Operating Instructions Rev.201910281250 MUSTER