Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) - Manual (Page 189)

Commissioning 4-35
7000 “A” Frame 7000A-RM001A-EN-P – January 2011
Control Power Tests
I M P O R T A N T I M P O R T A N T Prior to energizing the drive, verify that the
control power being fed into the input breakers
is rated as designated on the electrical diagram.
Although there are a variety of options available to customers
that will effect the control power distribution within the drive,
the input will always be as illustrated below:
20V
ISOLATED
GATE DRIVER
POWER SUPPLY
Single Phase
AC/DC
Converter
56V
1000W or
1500W
+5V-LOGIC
+/-15V-LOGIC
+/-24V-HECS
+24V-ISOLATORS
+24V-XIO
20V
DC/DC
CONVERTER
Fan
SENSE
CABLE
DC Fail
120V
Single
phase
Grounded
Neutral
CB1
Customer
supplied
3-ph
C hold-up
CPT1
Optional
1-ph
&
Remote
I/O
PV550
Figure 4.8 – Control Power Distribution
Three-Phase Input
In the 3-phase input configuration, the customer supplies 3-phase
control power into the Disconnect Switch (Labeled DS1 on the
Electrical Schematics). From that point, the power is distributed to
the 3-phase fan and to the power supplies through a single phase
CPT. The output of the single phase CPT powers all the power
supplies and controls within the drive. The 3-phase control should be
measured at the input to DS1. If the rating matches the designation
on the electrical schematic, it is acceptable to apply control power to
the drive. Take necessary measures to rectify the control power level
in the event that it does not meet the design specifications.