Lenze ECSCPxxx - Manual (Page 50)

Electrical installation
Installation according to EMC (installation of a CE−typical drive system)
5
l
50 EDBCSXP064 EN 8.0
Shielding
ƒ Connect the motor cable shield to the axis module
– with the ECSZS000X0B shield mounting kit.
– extensively to the mounting plate below the axis module.
– Recommendation: For the shield connection, use earthing clamps on bare metal
mounting surfaces.
ƒ If contactors, motor protection switches or terminals are located in the motor cable:
– Connect the shields of the connected cables to each other and connect them 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 extensively to
PE:
– Metal glands at the motor terminal box ensure an extensive connection of the
shield and the motor housing.
ƒ Shield UG cables and control cables from a length of 0.3 m:
– Connect both shields of the digital control cables.
– Connect one shield end of the analog control cables.
– Always connect the shields to the shield connection at the axis module over the
shortest possible distance.
ƒ Use of the ECS modules in residential areas:
– Additionally dampen the shield in order to limit the interfering radiation:
³10 dB .
This can be achieved by using standard, closed, metallic, and earthed control
cabinets or boxes.
Earthing
ƒ Earth all metallically conductive components (e.g. ECS modules, RFI filters, motor
filters, mains chokes) using suitable cables connected to a central earthing point (PE
rail).
ƒ Maintain the minimum cross−sections prescribed in the safety regulations:
– For EMC not the cable cross−section is important, but the surface of the cable and
the contact with a cross−section as large as possible, i.e. large surface.