Rockwell Automation PF700 PowerFlex 700 Drive Components Replacement - Frame 9 User Manual
Page 33
Rockwell Automation Publication 20B-IN025B-EN-P - January 2011
33
Basic Component Removal Procedures Chapter 2
6.
Reinstall the screws for the four side standoffs and brackets to secure the
Transitional Busbar assembly to the chassis.
a. Torque the screws to 5.6 N•m (50 lb•in) to secure the brackets to the
four red glastic spacers.
b. Torque screws to 2.9 N•m (26 lb•in) to secure the two brackets to the
drive chassis.
7.
Torque the six setscrews for each IGBT board to 5.6 N•m (50 lb•in).
8.
Reinstall the Tie Down Capacitor Mount on each IGBT board.
Reinstall two screws simultaneously to secure each Mount. Torque screws
to 5.6 N•m (50 lb•in).
9.
Install three Snubber Resistors onto the six setscrews for each IGBT board.
Reinstall two screws to secure each Snubber Resistor against the Tie Down
Capacitor Mount. Torque screws to 5.6 N•m (50 lb•in).
10.
Torque the nuts that secure the nine negative Flexible Capacitor Busbars to
the Transitional Busbar to 5.6 N•m (50 lb•in).
11.
Torque the nuts that secure the Transitional Bus Bar to the Bus Capacitor
setscrews to 5.6 N•m (50 lb•in).
12.
Reconnect the yellow wire for the Balancing Resistor.
13.
Install a new tie wrap for the Balancing Resistor wiring.
14.
If present, reconnect the +DC IN and +DC OUT cables from the
Transitional Busbar.
15.
For AC input drives, reinstall the DC Choke output cables.
16.
Reinstall any customer wiring to the Transitional Busbar.
17.
Reinstall the Stacking Panel as instructed on page
.
18.
Reinstall the Blower Control Panel as instructed on page
.
19.
Reinstall the Main Control Panel as instructed on page
.
20.
Verify all wiring to the three panels and the Transitional Busbar has been
reconnected.
21.
Replace all safety shields and enclosure covers before applying power to the
drive.
IMPORTANT
When torquing down each setscrew, place a flathead screwdriver
against the side of the Flexible Capacitor Busbar to minimize twisting.
Do not rest the screwdriver against any IGBT board while performing
this task to avoid cracking or breaking the board.