Lenze 8400 motec Manual - Manual (Page 69)

Installation
Retrofitting the 8400 motec controller
Mounting of the Communication Unit
5
l
69 EDS84DG752 EN 4.0
4 ... 7.5 kW
The Wiring Unit is mounted to the Drive Unit by means of the four supplied screws and the
seal. In the case of this device size, accessories are mounted to the Drive Unit. If there is
sufficient space, it is also possible to mount accessories subsequently. The plug connectors
of the Wiring Unit are enclosed loosely.
Proceed as follows:
1. Mount the Wiring Unit to the Drive Unit.
2. Mount the Wiring Unit (with mounted Drive Unit) to the terminal box flange with
the supplied seal and the original screws. Earthing is achieved by means of forced
contact.
3. Install the mains connection cable and, if required, additional cables for the external
brake resistor and/or motor holding brake.
4. 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 Drive Unit.
– For an installation of the controller conforming to standards, the second earth
connection
+ can be used for an additional equipotential bonding.
5. Plug the plug connectors of the Wiring Unit onto the Drive Unit.
The mounting of the Wiring Unit and the Drive Unit is now completed mechanicallly and
electrically.
5.6.3 Mounting of the Communication Unit
0.37 ... 3 kW
The CU can be extended with accessories before being mounted. Additional cable glands
or M12 connectors for further input and output signals can be mounted.
How to proceed:
1. In order to protect the CU electronics from damage, it must be unhooked and
separated from the CU frame.
2. Open the prepared bushings as required. Use a suitable tool, e.g. a big screwdriver or
step drill, to remove the areas from inside out. If required, plane rough edges.
3. Insert a connector M12 or cable gland with seal and screw down.
4. Position the CU frame onto the WU. The CU can be rotated by 180° in order that the
position of the cable outlets meets the requirements of the local conditions.
5. Insert the CU electronics and let it snap into place.
6. Wire the additional signals.
7. If a fieldbus is used, where address and transmission speed can be set, they must be
set right now since later settings are only possible after dismounting the DU.
The mounting of the CU is now completed mechanically and electrically.