Replacing The Dc Fuses For Motor Module In Chassis Format, Frame Sizes Fx And Gx - Siemens SINAMICS S120 Equipment Manual

6.4.11.4

Replacing the DC fuses for Motor Module in chassis format, frame sizes FX and GX

Replacing the DC fuses
Figure 6-28
Preparatory steps
● Observe the "five safety rules".
● Disconnect the cabinet from the power supply (do not forget the external power supplies).
● Remove the protective cover.
● Allow unimpeded access.
The DC voltage may still be present for up to 5 minutes.
Replacing the front fuse
1. Unscrew and remove the screws and nuts (1) from the front DC fuse.
2. Remove the DC fuse.
Replacing the back fuse
1. Unscrew and remove the screws and nuts from the front DC fuse (1).
2. Remove the front DC fuse.
3. Unscrew and remove the screws and nuts from the rear DC fuse, which can now be
4. Remove the rear DC fuse.
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A
Replacing the DC fuses, frame sizes FX and GX
CAUTION
accessed.
Maintenance and servicing
6.4 Replacing components
301