Rockwell Automation 7000A PowerFlex Medium Voltage Drive (A-Frame) - Classic Control - Manual (Page 353)

Component Definition and Maintenance 6-49
7000 “A” Frame 7000A-UM150F-EN-P –June 2013
D.C. Link / Fan / Control Components
Fan
Inlet Ring
DC Link
Inductor
Grounding
Network/
Filter
Motor Filter
Capacitor
Line Filter
Capacitor
Fan
Inlet Ring
DC Link
Inductor
Grounding
Network/
Filter
Motor Filter
Capacitor
Line Filter
Capacitor
Figure 6.41 – DC Link and Fan cabinet
with low voltage control tub shown
Figure 6.42 – DC Link and Fan Cabinet
with low voltage control tub removed
When the door is opened, control components are accessible. Behind the
low voltage swing-out panel is the medium voltage compartment where
the DC link and fan are located.
The D.C. link is mounted on the floor plate of the cabinet above the
capacitors.
Power connections are made to the inductor via its flexible leads. There
are four power connection points labeled L+, L-, M+, and M-.
The D.C. link is equipped with thermal protection for the windings.
There is a current sensor on the M+ conductor.
Above the D.C. link is the fan.
The primary elements of the fan are the inlet ring, impeller and motor.
AC/DC
Power
Supply
Control Board
Swing-out Panel
(for access to
DC Link Inductor
and Fan)
Medium Voltage
Barrier
(for access to
Line/Motor
Capacitors)
DC/DC
Power
Supply
Low voltage
Control Tub
Retaining
Hardware
AC/DC
Power
Supply
Control Board
Swing-out Panel
(for access to
DC Link Inductor
and Fan)
Medium Voltage
Barrier
(for access to
Line/Motor
Capacitors)
DC/DC
Power
Supply
Low voltage
Control Tub
Retaining
Hardware
AC/DC
Power
Supply
Control Board
Swing-out Panel
(for access to
DC Link Inductor
and Fan)
Medium Voltage
Barrier
(for access to
Line/Motor
Capacitors)
DC/DC
Power
Supply
Low voltage
Control Tub
Retaining
Hardware
AC/DC
Power
Supply
Control Board
Swing-out Panel
(for access to
DC Link Inductor
and Fan)
Medium Voltage
Barrier
(for access to
Line/Motor
Capacitors)
DC/DC
Power
Supply
Low voltage
Control Tub
Retaining
Hardware