Danfoss VLT 2800 Manuale di Servizio Scaricare il pdf (Pagina 44)

EMC-correct electrical installation

General points to be observed to ensure EMC-correct

electrical installation.

Use only screened/armoured motor cables

and screened/armoured control cables.

Connect the screen to earth at both ends.

Avoid installation with twisted screen ends

(pigtails), since this ruins the screening effect

at high frequencies. Use cable clamps in-

stead.

It is important to ensure good electrical con-

tact from the installation plate through the

installation screws to the metal cabinet of the

frequency converter.

Use starwashers and galvanically conductive

installation plates.

Do not use unscreened/unarmoured motor

cables in the installation cabinets.

The illustration below shows EMC-correct electrical in-

stallation, in which the frequency converter has been

fitted in an installation cabinet and connected to a PLC.

VLT

2800 Series

44 MG.27.E3.02 - VLT

is a registered Danfoss trademark

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Danfoss VLT 2800 Manuale di Servizio Pagina 44