Siemens SINAMICS S150 Operating Instructions Manual page 447

Preparatory steps
● Disconnect the cabinet unit from the power supply.
● Allow unimpeded access.
● Remove the protective cover.
Removal
The steps for the removal procedure are numbered in accordance with the diagram.
1. Remove the CU320 mount (1 nut). If necessary, remove the PROFIBUS plug and
2. Disconnect the plugs for the fiber optic cables and signal cables (5 plugs).
3. Remove the DRIVE-CLiQ cables and connections to the CU320 (5 plugs).
4. Remove the retaining screws for the slide-in electronics unit (2 screws).
The Control Interface Board can then be removed from the slide-in electronics unit.
CAUTION
When removing the connector of the ribbon cable, make sure that you actuate the locking
lever on the connector very carefully (e.g. with a screwdriver) otherwise the lock could be
damaged.
Installation
For re-installation, carry out the above steps in reverse order.
CAUTION
The tightening torques specified in the table "Tightening torques for connecting current-
carrying parts" must be observed.
Carefully re-establish the plug connections and ensure that they are secure.
When dealing with connectors with a lock, make sure that the locking lever is securely
engaged once connected.
The screwed connections for the protective covers must only be tightened by hand.
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
connection to the operator panel (-X140 on the CU320) and carefully remove the CU320.
When removing the slide-in electronics unit, you have to disconnect 5 further plugs one
after the other (2 at the top, 3 at the bottom).
CAUTION
When removing the fan, ensure that you do not damage any signal cables.
Maintenance and servicing
11.4 Replacing components
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