Siemens SINAMICS SM120 - Replacing the Current Transformer; Image

9.7.5 Replacing the current transformer
Removing the current transformer
To remove the current transformer, proceed as follows:
1. Remove the power cables which are screwed to the busbar.
2. Loosen the screw ③ at the busbar and remove the measuring resistor.
Ensure that the cable of the measuring resistor is not damaged.
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Image 9-5 Replacing the current transformer
3. Loosen and remove the screw ④ at the busbar.
4. Remove the connecting cable between the current transformer and the AVT combination
module. To do this, loosen the nuts on the side of the current transformer and remove the
cables ②.
5. Loosen the four screws ① that fix the current transformer to the busbar.
Maintenance
9.7 Repair
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 107