Frame 9 – Rockwell Automation 20D PowerFlex 700 Installation Instructions - Frames 7…10 User Manual
Page 36
36
Rockwell Automation Publication 20B-IN014H-EN-P - June 2013
PowerFlex 700 Adjustable Frequency AC Drive – Frames 7…10
Frame 9
Frame 9 Blower Operation
Frame 9 drives use a single-phase capacitor bank fan and a three-phase blower for
cooling. Proper phasing must be supplied to terminals R, S, and T of the Power
Terminal Block (AC drives) or the Blower Terminal Block (DC drives) to assure
correct blower rotation. To verify this, a Phase Monitor relay (see page
for
location) is used.
When wiring is complete, apply drive power and check for proper fan operation.
Depending on when the drive was manufactured, one of two different phase
monitor relays is used:
•
Drives Manufactured Before January 20, 2011: If
phasing is correct, a solid triangle is displayed on
the phase monitor relay (shown at right).
•
Drives Manufactured January 20, 2011 and
after: If phasing is correct, the “R/T” LED on
the phase monitor relay illuminates.
•
If phasing is not correct, the “F1” and “F2” LEDs alternately illuminate.
Regardless of which phase monitor relay is used in the drive, if the blower does
not operate:
1.
Remove all input power and wait 5 minutes for the DC bus to discharge.
Verify that the DC bus has discharged by measuring across the + and - DC
bus terminals. The reading must be less than 50 volts.
2.
Verify blower fuses and replace if necessary.
3.
Switch any two input power leads at the top of the blower fuse block.
4.
Apply power and verify proper operation.
Drive
Type
Enclosure
Rating
(120VAC)
No. of
Fans
Connect at …
DC
Input
IP00, NEMA/UL Type Open
500 VA
2
TB9
Requires user supplied 120V AC for cap. bank fan and
phase monitor.
Blower Terminal Block
Three-phase power must be supplied to the Blower TB.
See page
for TB locations and page
for terminal
designations.
IP20, NEMA/UL Type 1
500 VA
2
AC
Input
IP00, NEMA/UL Type Open
500 VA
2
for location)
matches the input line
voltage to the internal
voltage used for the
capacitor fan and phase
detector module. If the
line voltage is different
than the voltage class
specified on the drive
nameplate, the
transformer taps may
require changing.
IP20, NEMA/UL Type 1
500 VA
2
Input Line Voltage
480/400V AC, 50/60 Hz
F2
H3
480
400
F3
to TB9
JMP
0
115
0
F1
H2
H1
X1
XF
X2
v
~
L1 L2 L3