Lenze ECSCKxxx - Manual (Page 51)

Electrical installation
Wiring according to EMC (installation of a CE−typical drive system)
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51 EDKCSCK002 DE/EN/FR 1.1
Shielding
ƒ Connect the motor cable shield to the axis module
– with the shield mounting kit ECSZS000X0B001.
– to the mounting plate below the axis module with a large surface.
– Recommendation: For the shield connection, use earthing clamps on bare
metal mounting surfaces.
ƒ If contactors, motor−protecting switches or terminals are located in the
motor cable:
– Connect the shields of the connected cables and connect the shields to the
mounting plate, too, with a surface as large as possible.
ƒ Connect the shield in the motor terminal box or on the motor housing to PE:
– Metal glands at the motor terminal box ensure a large−surface connection
of the shield and the motor housing.
ƒ Shield the control cables:
– Connect both shield ends of the digital control cables.
– Connect one shield end of the analogue control cables.
– Always connect the shields to the shield connection at the axis module
over the shortest possible distance.
ƒ Using the axis modules in residential areas:
– Additionally dampen the shield in order to limit the interfering
radiation:
≥ 10 dB. This can be realised by using standard, closed, metallic,
and earthed control cabinets or boxes.
Earthing
ƒ Earth all metallically conductive components (e. g. power supply module,
capacitor module, axis module, RFI filter, motor filter, mains choke) using
suitable cables connected to a central point (PE bar).
ƒ Maintain the minimum cross−sections prescribed in the safety regulations:
– For the EMC, not the cable cross−section is important, but the cable surface
and the contact with a surface as large as possible.