ABB ACS2000 DFE, User Manual

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2-18 (28) 2UEA001270 Rev. F ACS2000 User manual
Chapter 2 - Power electronics and cabinet features
2.3.1.2 Kirk key interlock
The Kirk key system is mechanically interlocked to the upstream
disconnect using one master key and two locks. The key must be in place
in the upstream disconnect in order for the drive to be energized.
Follow local lock-out, tag-out safety procedures.
See Appendix I - Kirk Key Specifications, located on the CD, for detailed
information.
See Appendix P - Integral Input Contactor Disconnect, located on the CD,
for detailed information on drives with this option.
The upstream disconnect may be the integral input contactor disconnect
option. The Kirk key for this option is located behind the door of the
disconnect section.
2.3.1.3 Grounding switch
The grounding switch will only allow the capacitors to be charged when the
switch is in the ungrounded position.
2.3.1.4 Door interlocking mechanism, Frame 3 only
The door interlocking mechanism is a spring-loaded rotating bar with door
stops located just inside the MCB and AFE/INU doors at the bottom of the
Frame 3 drive cabinet, which ensures that the doors allowing access to
medium voltage equipment are closed before the drive is operational.
Once all doors are secured, the Kirk key and ground switch can be
operated as indicated in sections 2.3.1.2 and 2.3.1.3.
2.4 Power supply configurations
The drive requires two independent power supplies:
• Auxiliary power supply (eg. 480 V) for the control and cooling
equipment
See Appendix P - Integral Input Contactor Disconnect, located on the CD,
for detailed information on drives with this option.
The upstream disconnect may be the integral input contactor disconnect
option. The Kirk key for this option is located behind the door of the
disconnect section.
Note: Auxiliary power may be provided by the integral input contactor
disconnect on drives with this option.
• Main power supply (eg. 4160 V) for the power electronic components