Lenze 8400 motec Manual - Manual (Page 68)

Installation
Retrofitting the 8400 motec controller
Mounting the Wiring Unit
5
l
68 EDS84DG752 EN 4.0
5.6.2 Mounting the Wiring Unit
0.37 ... 3 kW
Before being mounted, the WU can be extended with accessories. If there is sufficient
space, accessories can also be mounted subsequently if required. The plug connector in the
WU should be removed for easier handling and later wiring.
Proceed as follows:
1. Remove the plug connector.
2. Remove the blanking plugs from the WU that are to be replaced by cable glands or
accessories for plug connection.
3. Mount the cable glands or the accessories for plug connection considering the
sealing requirements.
4. Mount the WU onto the terminal box flange with the existing seal and screws.
Earthing is achieved by forced contacting.
5. Install the mains connection cable and, if required, additional cables for the external
brake resistor and/or motor holding brake.
6. Wire the mains connection, the brake resistor and/or motor holding brake (if
required) to the plug connector. The PE conductor of the mains cable must be
connected to one of the earthing connectors
+in the WU.
– For an installation of the controller conforming to standards, the second earth
connection
+ can be used for an additional equipotential bonding.
7. Let the plug connector of the WU snap into place at the defined position.
The mounting of the WU is now completed mechanically and electrically.