Siemens SINAMICS S120 Equipment Manual page 318

Service and maintenance
10.3 Service and maintenance for Chassis format components
Preparatory steps
• Disconnect the drive line-up from the power supply.
• Allow unimpeded access to the power block.
• Remove the front cover.
Removal
The steps for the removal procedure are numbered in accordance with the previous diagram.
1. Unscrew the connection to the outgoing motor section (3 screws).
2. Unscrew the connection to the line supply (3 screws).
3. Remove the retaining screws at the top (2 screws).
4. Remove the retaining screws at the bottom (2 screws).
5. Remove the DRIVE-CLiQ cables and connections on –X41 / –X42 (5 plugs).
6. Remove the retaining elements of the electronic module (2 nuts) and carefully remove the
7. Disconnect the plugs for the fiber optic cables and signal cables (5 plugs).
8. Unscrew the two retaining screws for the fan and attach the tool for de-installing the
You can now remove the power block.
Caution
When removing the power block, ensure that you do not damage any signal cables.
Installation
To re-install the fan, carry out the above steps in reverse order.
Caution
You must observe the specified tightening torques.
Carefully re-establish the plug connections and ensure that they are secure.
10-12
electronics module.
When removing the electronics module, 5 additional connectors (2 at the top, 3 at the
bottom) must be removed one after the other.
power block at this position.
Equipment Manual AC Drive
Manual, (GH6), 03/2006 Edition, 6SL3097-2AL00-0BP0