Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) - Manual (Page 301)

Component Definition and Maintenance 5-59
7000 “A” Frame 7000A-RM001A-EN-P – January 2011
Control Power Components There are two configurations in which control power will be distributed
for the drive. The different methods are dependent on what drive option
the customer has chosen:
1.
AFE Rectifier with DTD DC Link – Conf. #1 (refer to Figure 5.44)
2.
AFE Rectifier with Separate Isolation Transformer – Config. #2
(refer to Figure 5.45)
3.
AFE Rectifier with Integral Isolation Transformer – Config. #3
(refer to Figure 5.45)
Ride-Through
Standard controls with 5 cycle ride-through – The drive main control
boards will remain energized for a total of 5 cycles after control power is
interrupted. If control power is not restored during the 5 cycles, a
controlled shutdown will occur.
Figure 5.44 illustrates the control power distribution for AFE drives with
integral starter/line reactor.
Printer
Operator Interface
Relays
DC/DC CONVERTER
VFD
AC/DC Converter
56V DC
1000W/1500W
+5V-LOGIC
+/-15V-LOGIC
+/-24V-HECS
+24V-ISOLATORS
+24-XIO
SENSE CABLE
20V
C Hold-up
Fan
20V Isolated
Gate Driver
Power Supply
380V 50Hz
or
460V 60Hz
3-ph
DC Fail
Fuse
Line
Reactance
120V
1-ph
Figure 5.44 – AFE Rectifier with DTD DC Link (Configuration #1)