Procedure
1. Place the changing device on wooden beams so that the stacker can be positioned under
it.
① Bracket to secure the metal plate ② stop brackets
Figure 9-12 Attaching the changing device to the forklift truck
2. Position the stacker under the changing device, so that the base frame is resting on the
forks.
3. Assemble the bracket ① to secure the base frame in place.
Figure 9-13 Attaching the changing device to the forklift truck
4. Insert the outer stop brackets ② at the points provided to prevent the component to be
replaced from rolling away.
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module must be withdrawn from the drive so that it can be repaired.
Maintenance
9.5 Repair
SINAMICS SM150 6SL3845-2NN41-8AD2
Operating Instructions Rev.201910281310 EXAMPLE 149
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