System drain, Low voltage control section – Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C-Frame) - ForGe Control User Manual
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344
Rockwell Automation Publication 7000L-UM301D-EN-P - June 2014
Chapter 5
Component Definition and Maintenance
removing connections, as there will definitely be liquid leaking out. Use
absorbent pads or containers to catch the liquid.
System Drain
Turn off the pumping system and disconnect the switch on the cabinet door.
Attach the transfer pump to Drain/Fill line. Ensure that the flow arrow on pump
is in the correct direction. Open valve V6 and V7 (if provided) to pump coolant
out.
Low Voltage Control Section
The low voltage control section panel houses all of the control circuit boards,
relays, Operator Interface Terminal, DC/DC power supply, and most other low
voltage control components. Refer to
for a generic representation of a
low voltage tub arrangement.
Figure 286 - Low Voltage Compartment
Fiber Optic
Interface
Boards
DC/DC
Power
Supply
Analog
Control
Board
Tach Feedback
Circuit Board
Drive Processor
Module (DPM)
ANALOG
CONTROL
BOARD
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