9.7.3
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. Its weight is 260 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must be withdrawn from the drive so that it can be repaired.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
Prerequisite
Prepare the changing device as 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 9-10 Lifting solenoid
Maintenance
9.7 Repairs
SINAMICS SM150 6SL3845-7NN46-7AA0
Operating Instructions 04/2017
173
Summary of Contents for SINAMICS SM150
Page 2: ...20 04 2017 13 53 V27 00 ...
Page 14: ...Table of contents SINAMICS SM150 6SL3845 7NN46 7AA0 14 Operating Instructions 04 2017 ...
Page 122: ...Start up SINAMICS SM150 6SL3845 7NN46 7AA0 122 Operating Instructions 04 2017 ...
Page 190: ...Maintenance 9 7 Repairs SINAMICS SM150 6SL3845 7NN46 7AA0 190 Operating Instructions 04 2017 ...
Page 192: ...Spare parts SINAMICS SM150 6SL3845 7NN46 7AA0 192 Operating Instructions 04 2017 ...
Page 196: ...Service Support SINAMICS SM150 6SL3845 7NN46 7AA0 196 Operating Instructions 04 2017 ...
Page 217: ......