Siemens SINAMICS S120 Equipment Manual page 406

Service and maintenance
12.3 Service and maintenance for Chassis format components
Preparatory steps
● Disconnect the drive line-up.
● Make sure the power block is accessible.
● Remove the front cover.
Removal
The steps for the removal procedure are numbered in accordance with the previous diagram.
1. Unscrew the connection of the motor outgoing feeder (3 screws).
2. Unscrew the connection for the infeed (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 retaining nuts of the supporting plate for the Control Unit and remove the
supporting plate (3 nuts).
6. Remove DRIVE-CLiQ cables and connections at –X41/–X42/–X46 (6 connectors).
The DRIVE-CLiQ cables should be marked to ensure that they are subsequently correctly
inserted.
7. Take out the retaining screws for the IPD card (2 screws) and remove the IPD card from
-X45 connector on the Control Interface Module.
8. Disconnect the plug-in connections of the fiber-optic cables and the signal cables (5
connectors).
9. Remove the retaining screws of the withdrawable electronic unit (2 screws) and carefully
remove the electronic unit.
When removing the plug-in module, 5 additional connectors (2 at the top, 3 at the bottom)
must be removed one after the other.
10.Unscrew the 2 retaining screws for the fan and attach the mounting device for the power
block at this position.
You can now remove the Powerblock.
Note
The power block weighs approx. 65 kg.
NOTICE
Device damage as a result of damaged signal cables when removing
Signal cables can be damaged when the power block is removed. This can cause the
device to fail.
• When removing the power block, ensure that you do not damage any signal cables.
404
Manual, 06/2019, 6SL3097-5AL00-0BP1
AC Drive