Siemens SINAMICS S120 Equipment Manual page 194

DC link components
5.1 Braking Module
Installing the Braking Module
The steps for the installation procedure are numbered in accordance with the diagrams in
front of them.
1. Unscrew the 2 M6 screws from the front cover and lift off the cover.
2. Unscrew the 2 screws from the upper cover plate.
3. Unscrew the 4 screws from the upper cover plate.
4. Unscrew the 3 screws for the blanking plate.
5. Insert the Braking Module where the cover used to be and secure it using the 3 screws
6. Secure the connecting cable to the DC link with 2 screws (Braking Module connection)
Carry out the subsequent steps in reverse order from steps 1 – 3.
An opening above the connections for the braking resistor (R1, R2) is provided in the cover
for connecting the cable to the braking resistor.
CAUTION
The tightening torques specified in the table "Tightening torques for connecting current-
conducting parts" must be observed.
194
Loosen the 1 M6 nut on the left.
Remove the left cover
Unscrew the 3 screws from the rear cut-out sections.
Remove the top covers.
Remove the plate.
(from step 4).
and 2 nuts (DC link connection).
Manual, (GH3), 10/2008, 6SL3097-2AE00-0BP3
Chassis power units