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13-3 Electromagnetic Compatibility (EMC) Recommended Installation Instructions
It is necessary that thes
e instructions be followed to conform to EMC Directives.
Follow the usual safety procedures when working with electrical equipment. All electrical connec-
tions to the filter, Drive and motor must be made by a qualified electrical technician.(Refer to Fig.
13-3-1 and Fig. 13-3-2)
Use the correct filter according to Table 13-2-1.
Install the Drive and filter in a electrically shielded metal cabinet.
The back panel of the wiring cabinet of board should be prepared for the mounting dimensions
of the filter. Care should be taken to remove any paint etc. from the mounting holes and face
area of the panel. This will ensure the best possible grounding of the filter.
Use a shielded cable for the control, motor and other main wiring which are connected to the
Drive. The screens should be securely grounded.
It is important that all wire lengths are kept as short as possible and that incoming mains and
outgoing motor cables are kept well separated.
In case of a ferrite ring is provided with the filter, fit a ferrite ring to the motor cable with the 3
phase conductors only passing twice through the center of the ferrite.
M
RFI
Filter
RCD or
MCCB
Metal Cabinet
Drive
Ferrite Ring
2 turn
*3
*1
*2
L1
L2
L3
G
G
G
G
3PH
Power Supply
Shielded Motor Cable
L1/R
L2/S
L3/T
L1'
L2'
L3'
V
U
W
Shielding must be Electrically
Continuous and grounded at
the cabinet and the motor
Fig. 13-3-1 Recommended Installation
In case of single phase power supply
models, L1/L and L2/N are substituted
forL1/R,L2/S and L3/T.
In case of single phase power supply
models, L,N,L
’
and N
’
are substituted
for L1,L2,L3,L1
’
,L2
’
and L3
’
.
*
2
*
1
In case of single phase power supply
models, ferrite
ring is unnecessary
*
3
