Grounding Switch; Grounding Circuit - ABB ACS2000 AFE 1MVA User Manual

39 ACS2000 AFE 1MVA UM 3BHS297030 ZAB E01 REV. J

Grounding switch

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References
The grounding switch is a safety device that
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enables safe access to the AFE-INU compartment
2-8 Grounding switch
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of the drive.

2-9 Grounding circuit

When the switch is in position grounded, input fil-
ter (2-9: 1)
(2-9: 4)
connected to the PE ground bus
The switch is electromechanically interlocked with
a discharge monitoring circuit that prevents clos-
ing of the switch while the DC link capacitor is still
charged.
—
2-8
2
1
—
2-9
AFE (2-9: 2), DC link (2-9:
and output filter (2-9: 5) of the drive are
(2-9:
3
6
3), INU
6).
4
5