Communication - Lenze 8400 protec Hardware Manual

7 Electrical installation − EMS version

Communication

7.7 Communication
Carry out the installation in accordance with the mounting directives of the fieldbus
systems in order to prevent a faulty communication. Please observe the notes on the
additional equipotential bonding.
(
Stop!
High compensation currents
High compensation currents can flow via the shield of the fieldbus cable.
Possible consequences:
Damage to material assets or failures
Protective measures:
Prevent compensation currents via the shield of the fieldbus cable as follows:
ƒ
ƒ
ƒ
The communication cables of the available fieldbus systems can be installed using
different plug versions. The type code provides information on the design of one device.
136
Connect all fieldbus nodes with a 16 mm
Lay this cable in parallel to the bus cable.
Ensure a highly conductive connection of all earthing studs with a copper
braid cable to the mounting surface.
+
Earthing for compliance with EMC conditions, prevents compensation currents via the
shield of the fieldbus cable
0
2
16 mm equalizing conductor with ring cable lug M6
l
2
cable via the earthing studs.
EDS84DPS424 EN 5.0
E84DWX0003