4
Electrical installation
Installation according to EMC (installation of a CE−typical drive system)
Shielding
Connect the motor cable shield to the axis module
ƒ
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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.
If contactors, motor protection switches or terminals are located in the
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motor cable:
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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.
Connect the shield in the motor terminal box or on the motor housing
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extensively to PE:
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Metal glands at the motor terminal box ensure an extensive connection
of the shield and the motor housing.
Shield UG cables and control cables from a length of 0.3 m:
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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.
Use of the ECS modules in residential areas:
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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
Earth all metallically conductive components (e.g. ECS modules, RFI filters,
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motor filters, mains chokes) using suitable cables connected to a central
earthing point (PE rail).
Maintain the minimum cross−sections prescribed in the safety
ƒ
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.
78
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EDKCSEE040 DE/EN/FR 5.0