Lenze Inverter EMC - Manual (Page 16)

Arrangement according to EMC requirements
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EDBEMV EN 1.3
6.3 Wiring according to EMC outside the control cabinet
6.3.1 General information
Notes for cable laying outside the control cabinet:
z The longer the cables the greater the space between the cables.
z In case of parallel cable routing of cables with different types of signals it is possible to
minimise the interferences by means of a metal barrier or separated cable ducts.
Cover
Separator
without
cutout
Power cables Signal cables
Cover
Communication cables
Cable duct
Measuring cables
Analog cables
Control cables
Power cables
Fig. 8 Cable routing with separator Fig. 9 Cable routing with separate cable duct
6.3.2 Wiring on the mains side
z It is possible to connect the controller, mains choke or RFI filter to the mains via single cores
or unshielded cables.
z The cable cross-section must be rated for the assigned fuse protection (EN 0160).
6.3.3 Wiring on the motor side
Stop!
The motor cable is highly susceptible to interferences. Hence the following applies:
The motor cable must not contain any further cables (e.g. for brake control,
separate fans etc.).
One exception is the temperature monitoring cable of the motor.
z Use shielded, low-capacitance motor cables only.
z Shield the cable for temperature monitoring of the motor (PTC or thermal contact) and
separate it from the motor cable.
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