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module must be withdrawn from the drive so that it can be repaired.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
draining the drive
● 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
Preparation
1. Remove the electrical connections from the lifting solenoids
③
.
2. Loosen the screws connecting the central brace with the frame of the cabinet, and remove
the central brace.
Figure 9-14
Lifting solenoid
Maintenance
9.5 Repair
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Operating Instructions Rev.201910281250 MUSTER
Summary of Contents for Sinamics GM150 6SL3835-2LN44-2AA0
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