Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control - Manual (Page 126)

126 Rockwell Automation Publication 7000-UM202B-EN-P - June 2014
Chapter 3 Component Definition and Maintenance
Control Power Components There are two configurations for distributing control power for the drive,
dependent on your selected drive option.
• Direct-to-Drive (transformerless AFE rectifier) (refer to Figure 111 )
• AFE/18 Pulse rectifier with separate isolation transformer (refer to
Figure 112 on page 127 )
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 interruption. If you
cannot restore control power during the 5 cycles, the drive performs a controlled
shutdown.
Figure 111 illustrates the control power distribution for AFE drives with integral
starter/line reactor.
Figure 111 - Direct-to-Drive (transformerless AFE Rectifier)
Figure 112 illustrates the control power distribution for AFE drives with remote
transformer/starter or integrated line reactor with remote starter.
Line
Filter
Customer
Supplier
120V 1-ph
Line
Reactor
VFD
Fan
380V 50 Hx
or
460V 60 Hz
3-ph
DC Fail
AC/DC Converter
56V DC
600 W/ 1000W/
1500 W
- Printer
- Operator Interface
- Relays
C Hold-up
DC/DC Converter
Sense Cable
24V-Isolators
24V-XIO
+/-24V-HECS
+/-15V Logic
5V-Logic
20V Isolated Gate
Driver Power Supply
Inverter only for SPS Drives
20V