Installation In The Control Cabinet - Lenze 8400 Hardware Manual

Installation according to EMC (installation of a CE-typical drive system)
6.2.5

Installation in the control cabinet

Mounting plate requirements
Only use mounting plates with conductive surfaces (zinc-coated or V2A-steel).
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Painted mounting plates are not suitable even if the paint is removed from the
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contact surfaces.
If several mounting plates are used, ensure a large-surface connection between the
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mounting plates (e.g. by using earthing strips).
Mounting of the components
Connect the controller and RFI filter to the grounded mounting plate with a surface
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as large as possible.
No DIN rail mounting!
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Optimum cable routing
The motor cable is optimally installed if
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– it is separated from mains cables and control cables,
– it crosses mains cables and control cables at right angles.
Always install cables close to the mounting plate (reference potential), as freely
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suspended cables act like aerials.
Lead the cables to the terminals in a straight line (avoid tangles of cables).
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Use separated cable channels for motor cables and control cables. Do not mix up
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different cable types in one cable channel.
Minimise coupling capacities and coupling inductances by avoiding unnecessary
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cable lengths and reserve loops.
Short-circuit unused cores to the reference potential.
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Install the positive and negative wires for DC 24 V close to each other over the entire
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length to avoid loops.
Earth connections
Connect all components (drive controllers, chokes, filters) to a central earthing point
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(PE rail).
Set up a star-shape earthing system.
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Comply with the corresponding minimum cable cross-sections.
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EDS84ASC552 EN 10.0
Electrical installation
Installation in the control cabinet
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