Electrical installation – Lenze ECSEExxx User Manual
Page 78

Electrical installation
Installation according to EMC (installation of a CE-typical drive system)
4
78
EDKCSEE040 DE/EN/FR 4.0
Shielding
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Connect the motor cable shield to the axis module
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with the ECSZS000X0B shield mounting kit.
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extensively to the mounting plate below the axis module.
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Recommendation: For the shield connection, use earthing clamps on
bare metal mounting surfaces.
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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.
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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.
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Shield UG cables and control cables from a length of 0.3 m:
–
Connect both shields of the digital control cables.
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Connect one shield end of the analog control cables.
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Always connect the shields to the shield connection at the axis module
over the shortest possible distance.
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Use of the ECS modules in residential areas:
–
Additionally dampen the shield in order to limit the interfering
radiation: 10 dB . This can be achieved by using standard, closed,
metallic, and earthed control cabinets or boxes.
Earthing
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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).
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Maintain the minimum cross-sections prescribed in the safety
regulations:
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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.