Rockwell Automation 22F PowerFlex 4M User Manual FRN 1.xx - 2.xx - Manual (Page 15)

Installation/Wiring 1-5
PowerFlex 4M Adjustable Frequency Drive FRN 1.xx - 2.xx User Manual
Publication 22F-UM001D-EN-E
The drive Safety Ground - (PE) must be connected to system ground.
Ground impedance must conform to the requirements of national and
local industrial safety regulations and/or electrical codes. The integrity
of all ground connections should be periodically checked.
Figure 1.3 Typical Grounding
Ground Fault Monitoring
If a system ground fault monitor (RCD) is to be used, only Type B
(adjustable) devices should be used to avoid nuisance tripping.
Safety Ground - (PE)
This is the safety ground for the drive that is required by code. One of
these points must be connected to adjacent building steel (girder, joist), a
floor ground rod or bus bar. Grounding points must comply with national
and local industrial safety regulations and/or electrical codes.
Motor Ground
The motor ground must be connected to one of the ground terminals on
the drive.
General Grounding Requirements
R/L1
S/L2
T/L3
U/T1
V/T2
W/T3
SHLD