ABB ACS2000 AFE 1MVA, User Manual

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39 ACS2000 AFE 1MVA UM 3BHS297030 ZAB E01 REV. J
Grounding switch
The grounding switch is a safety device that
enables safe access to the AFE-INU compartment
of the drive.
When the switch is in position grounded, input fil-
ter
(2-9: 1) AFE (2-9: 2) , DC link (2-9: 3) , INU
(2-9: 4) and output filter (2-9: 5) of the drive are
connected to the PE ground bus (2-9: 6) .
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.
—
References
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2-8 Grounding switch
—
2-9 Grounding circuit
—
2-8
—
2-9
1 2 3 4 5
6