Operating instructions

Maintenance and servicing
11.4 Replacing components
Drive converter cabinet units
Operating Instructions, 10/2008, A5E00288214A
451
Preparatory steps
● Disconnect the cabinet unit from the power supply.
● Allow unimpeded access.
● Remove the protective cover.
Removal steps
The removal steps are numbered in accordance with the figure.
1. Remove the CU320 mount (1 nut). If necessary, remove the PROFIBUS plug and
connection to the operator panel (-X140 on the CU320) and carefully remove the CU320.
2. Disconnect the plug-in connections 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).
When removing the slide-in electronics unit, you have to disconnect 5 further plugs one
after the other (2 at the top, 3 below).
CAUTION
When removing the unit, ensure that you do not damage any signal cables.
The Control Interface Board can then be removed from the slide-in electronics unit.
CAUTION
When removing the ribbon cable's connectors, make sure that you actuate the locking lever
on the connector very carefully (e.g. with a screwdriver) because otherwise the lock could
be damaged.
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-in connections and then ensure that they are secure.
When dealing with connectors with a lock, make sure that the locking lever is securely
engaged once connected.
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 screwed connections for the protective covers must only be tightened by hand.