Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine - Manual (Page 232)

4-56 Component Definition and Maintenance
7000L-UM302B-EN-P – June 2013 7000 ―C‖ Frame - Marine
AC/DC
Power Supplies
Fuse Blocks
Power Transformer
Liquid-Cooled
DC Link Reactor
Cooling Pipes
Figure 4.43 – DC Link and Control Power Cabinet
The door of the Control Power Panel is interlocked so that it cannot
be opened unless the 3-phase control power is disconnected. When
the door is opened, the AC Control Power transformer and the
AC/DC power supplies are accessible. This is the section where the
customer 3-phase power is brought into the drive.
The DC Link is mounted on the floor beneath the control power
section. The larger door is interlocked with the rest of the system
and cannot be opened unless the MV power is locked-out. The DC
Link is part of the cooling circuit for the PowerFlex 7000L ―C‖
Frame drive, and has 2 inlets and 2 outlets for coolant flow.
Power Connections are made to the DC Link through flexible leads,
and they are labeled L+, L-, M+, and M-. There is a Hall Effect
current sensor on the M+ connection to the DC Link.
DC Link and Control
Power Section