Rockwell Automation Publication 7000L-UM301F-EN-P - March 2020 207
Commissioning Chapter 4
Figure 191 - 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.
Three-Phase Input / Single Phase Input
This configuration has one source of control power:
• Three-phase control power for fan operation which is also converted to
single-phase control power to operate the Interface, power supplies, I/O
and additional auxiliaries.
Similar to the three-phase configuration, the input power for the fan and control
must be verified at the primary of DS1.
If the ratings match the designation on the electrical schematic, it is acceptable to
apply control power to the drive by closing CB1 and DS1. Take necessary
measures to rectify the control power levels in the event that they do not meet the
design specifications.
20V
ISO LATED
GATE DRIVER
POW ER SUPPLY
Single Phase
AC /DC
Converter
56V
1000W or
1500W
+5V-LOG IC
+/-15 V-LOG IC
+/-24V-HECS
+24V -ISOLA TORS
+24V-XIO
20V
DC/DC
CO NV ERTER
Fan
SE NSE
CABLE
DC Fail
120V
Single
phas e
G rounded
Neutral
CB1
Customer
supp l i ed
3-ph
Chold-up
CP T1
Opti onal
1-ph
&
Remote
I/O
PV550
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