Siemens SINAMICS S120 Equipment Manual page 262

Maintenance and servicing
6.4 Replacing components
Preparatory steps
● Observe the "five safety rules".
● Disconnect the drive line-up from the power supply.
● Allow unimpeded access.
● Remove the protective cover.
Removal steps
The removal steps are numbered in accordance with the figure.
1. Disconnect the plug connections for the fiber optic cables and signal cables (5 plugs).
2. Remove the DRIVE-CLiQ cables and connections on -X41/-X42 (5 plugs).
3. Remove the retaining screws for the slide-in electronics unit (2 screws).
CAUTION
When removing the unit, ensure that you do not damage any signal cables.
The Control Interface Board can then be removed from the slide-in electronics unit.
CAUTION
When removing the ribbon cable's connectors, make sure that you actuate the locking lever
on the connector very carefully (e.g. with a screwdriver) because otherwise the lock could
be damaged.
262
When removing the slide-in electronics unit, 5 additional plugs (2 at the top, 3 at the
bottom) must be removed one after the other.
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A