Siemens SINAMICS S120 Equipment Manual page 254

Maintenance and servicing
6.4 Replacing components
Installation steps
For installation, carry out the above steps in reverse order.
CAUTION
The tightening torques specified in the table "Tightening torques for connecting current-
conducting parts" must be observed.
Carefully establish the plug connections and then ensure that they are secure.
The fiber optic cable plugs must be remounted at their original slot. Fiber optic cables and
sockets are accordingly labeled for correct assignment (U11, U21, U31).
The screw connections for the protective covers must only be tightened finger-tight.
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S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A