Installation In The Control Cabinet; Specification Of The Cables Used; Shield Connection - Lenze 8200 vector series Manual

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Wiring according to EMC
Always observe these basic rules
3.1.1

Installation in the control cabinet

The mounting plate
Use mounting plates with an electrically conductive surface (zinc-coated or V2A).
Varnished mounting plates are not suitable even if the varnish on the contact areas is
removed. The contact areas without varnish bear the risk of rust formation.
If the installation is distributed among several mounting plates, the mounting plates must be
electrically connected with a surface as large as possible (e.g. with earthing strips).
Mounting of the components
Connect the controller and RFI filter to the earthed mounting plate with a surface as large as
possible.
DIN rail mounting is not suitable!
Correct cable installation
Control cables and mains cables must be separated from the motor cable.
Cross the motor cable at right angles with mains cables and control cables.
Optimally the motor cable is installed without interruptions.
Install terminals for the motor cables e.g. at the control cabinet entry with a minimum
distance from the other terminals of at least 100 mm.
The cables must always be installed close to the mounting plate (reference potential), as
loose cables act like aerials.
Install mains cables and control cables in separate cable ducts.
Connect shielded cable sections with the reference potential.
3.1.2

Specification of the cables used

The cables used must comply with the requirements of the application (e.g. UL, EN 60204-1).
Only use shielded cables with a braid made of tinned or nickel-plated copper. Do not use
braids made of steel.
The overlap rate of the braid must amount to at least 70 % with an overlap angle of 90°.
3.1.3

Shield connection

Connect the shields with a large surface to the EMC shield sheet on the device side.
Do not disconnect the shield after the contact area but continue it up to the terminals.
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EDBEMV82EV EN 3.0
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