Emerson Unidrive M201 Installation Manual page 75
Unidrive hs series;
unidrive m series.
frame 7 to 10
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Also See for Unidrive M201:
- User manual (204 pages) ,
- Quick start manual (62 pages) ,
- Control quick start manual (50 pages)
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4.11.3
Line to ground varistors
The line to ground varistors should only be removed in special circumstances such as
ungrounded supplies with more than one source, for example on ships. Where the line to
ground varistors are removed, ensure that line to ground transients are limited to values
of category II. This is to ensure that line to ground transients do not exceed 4 kV as the
WARNING
drive insulation system from power to ground is designed to category II.Contact the
supplier of the drive for more information.
Figure 4-14 Removal of size 9E and 10E line to ground varistors
To electrically disconnect the line to ground varistors, remove the screw as highlighted above (1).
Unidrive M / HS Frame 7 to 10 Power Installation Guide
Issue Number: 5
1
75
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