Lenze LDECBBF1xxxxxxHx - Manual (Page 28)

Electrical installation
Important notes
6
l
28 LDEDS−CCU210B EN 4.0
EMC−compliant wiring
)
Note!
In order to ensure the trouble−free operation of Lenze control systems on
monorail overhead conveyors, an EMC−compliant installation is requried. This
includes the following:
ƒ Conduct the motor cable as described in the technical data.
ƒ Install the motor connection cables (connections U, V, W) separately from
the sensor cables:
– Do not use a common cable duct.
– Do not lay the cables in parallel over longer distances.
– Minimum distance 10 cm.
– Keep the motor cable as short as possible.
ƒ Lay the supply cables for the sliding contacts of the bars separately to the
sensor cables:
– Do not use a common cable duct.
– Do not lay the cables over longer distances.
– Minimum distance 20 cm.
ƒ Connect control and data cable shields at both ends.
ƒ Prevent the formation of loops of the sensor cables when cables are too
long:
– Conveniently trim the sensor cables or directly lay them in the wire
harness by folding them up and interconnecting them using a cable tie, in
order to avoid interferences and magnetic inductions.
ƒ Earth the MOC vehicle directly via the earthing brushgear:
– Connect all movable parts to the cross beam or the main beam in a
low−resistance manner.
– Use copper braid strap or drain wire 4 mm 2 .
ƒ Series connections of the earthing are allowed:
– If a movable part is earthed, the proximate movable part can be earthed
on the previous movable part.
– For instance in the case of carriages, you can like this establish a closed
and low−resistance connection from the cross beam to the main beam
which the control is connected to, via several PE connections from the
motor bracket, control beam, front and rear carriage.
ƒ The responsibility for the compliance with the EMC Directive in the machine
application lies with the user.