Danfoss FC 101 - EMC-Correct Electrical Installation

3.2.5 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.
•
Ground the screen at both ends.
•
Avoid installation with twisted screen ends (pigtails), because this reduces the screening effect at high frequencies.
Use the cable clamps provided.
•
Ensure the same potential between drive and ground potential of PLC.
•
Use starwashers and galvanically conductive installation plates.
B
a
c
k
OK
Com.
On
Warn.
Alarm
Hand
On
O
Reset
Auto
On
Menu
Status Quick
Menu
Main
Menu
L1
L2
L3
PE
Min. 16 mm
2
Equalizing cable
Control cables
All cable entries in
one side of panel
Earthing rail
Cable insula-
tion stripped
Output con-
tactor etc.
Motor cable
Motor, 3 phases and
PLC etc.
Panel
Mains-supply
Min. 200mm
between control
cable, mains cable
and between mains
motor cable
PLC
Protective earth
Reinforced protective earth
130BB761.11
Illustration 3.21 EMC-correct Electrical Installation
Installation Quick Guide
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