Siemens SINAMICS SM150

Removing the cooling water
1. Place the catchment tray under the pipe union.
2. Close the inlet non-return valve ④ and the outlet non-return valve ⑤. Unscrew the water
supply and outlet pipes ⑥.
Figure 9-11 Water connection
3. Capture the cooling water (approximately 5 liters) using the catchment tank. Remove all
water from the phase module.
Removing cables and screwed connections
1. Pull out the fiber-optic conductors.
2. Remove the power supply cables on the transformers.
Figure 9-12 Fiber-optic conductors and power supply cable
3. Release the screwed connections ⑦ between the phase module and the busbar package
on the rear of the IGCT phase module.
Maintenance
9.7 Repairs
SINAMICS SM150 6SL3845-7NN46-7AA0
174 Operating Instructions 04/2017