Omron VARISPEED L7 Manual page 12

The grounding surfaces must be highly conductive bare metal. Remove any coats of varnish and paint.
–Ground the cable shields at both ends.
–Ground the motor of the machine.
Installation inverters and EMC filters
For an EMC rules compliant installation consider
the following points:
Use a line filter.
•
Use shielded motor cables.
•
Mount the inverter and filter on a grounded con-
•
ductive plate.
Remove any paint or dirt before mounting the
•
parts in order to reach the lowest possible
grounding impedance.
Ground clip
Ground plate
PE
Cable Lenght
as short as possible
Grounded
Metal Plate
PE L2
L1
L3
Ground Bonds
Remove any paint!
Line
Inverter
Filter
Load
L2 V
GND L1 U W GND
L3
Ground Bonds
Remove any paint!
M
~3
Screened
Motor cable
XI