Siemens SINAMICS S120 Equipment Manual page 284

Maintenance and servicing
9.4 Replacing components
Preparatory steps
● Disconnect the drive line-up from the power supply.
● Allow unimpeded access.
● Remove the protective cover.
Removal
The removal steps are numbered in accordance with the figure.
1. Disconnect the plugs for the signal cables (2 plugs).
2. Remove the DRIVE-CLiQ cables and connections on –X41 / –X42 (5 plugs maximum).
3. Take out the retaining screws for the IPD card (2 screws) and remove the IPD card from
4. Remove the retaining screws for the Control Interface Module (2 screws). The bottom
When removing the Control Interface Module, you have to disconnect a maximum of 5
further plugs one after the other (2 at the top, 3 below) and the PE connection (1 screw
below).
CAUTION
When removing the unit, ensure that you do not damage any signal cables.
Then, you can remove the plug for the electronic fan power supply from the electronic
Control Interface Module. Now you can remove the electronic fans for the Control Interface
Module.
Installation
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-in connections and then ensure that they are secure.
The DRIVE-CLiQ cable plugs should be labeled prior to disassembly and reinstalled at their
original slot, since it is necessary to re-perform system identification after changing the
DRIVE-CLiQ cables.
The screw connections for the protective covers must only be tightened by hand.
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connector –X45 on the Control Interface Module.
screw also secures the front electronic fan.
Chassis Liquid Cooled Power Units
Manual, (GH7), 01/2011, 6SL3097-4AM00-0BP1