Install components – Rockwell Automation PF700 PowerFlex 700 Drive Components Replacement - Frame 9 User Manual
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Rockwell Automation Publication 20B-IN025B-EN-P - January 2011
Chapter 3 Component Replacement Procedures
Install Components
1.
Carefully examine the Transitional Busbar and Bus Capacitors for damage.
When replacing any IGBT, it is recommended that you replace all Bus
Capacitors. If needed, see
Bus Capacitors.
2.
Install the IGBT module.
a. Using isopropyl alcohol, thoroughly clean the surface of the Heatsink.
b. Verify that the mounting surface of the new IGBT module is clean. If
not, clean with isopropyl alcohol.
c. Using a 3- or 4-inch paint roller or putty knife, apply a thin even coating
of the supplied thermal grease to the mounting surface of the IGBT
module.
In the next step, take care to not disturb any of the thermal grease on the
IGBT module.
d. Place the IGBT on the chassis with the serial number label at the top.
Install with supplied screws using this torque sequence:
3.
If needed, install the three supplied positive (DC+) Flexible Capacitor
Busbars on the back side of the Transitional Busbar.
The positive (DC+) Flexible Capacitor Busbars have a shorter angle.
IMPORTANT
If the Transitional Busbar was not removed, take care to not damage
the Flexible Capacitor Busbars fitting over and under the Transitional
Busbar.
IMPORTANT
The three positive (+) Flexible Capacitor Busbars supplied with the kit
must be installed on the back side of the Transitional Busbar before
they can be installed on the IGBT. See page
32
for how to install these
busbars on the Transitional Busbar.
IGBT Torque Sequence
First Sequence: 0.7 N-m (6.0 lb.-in.)
Second Sequence: 2.3 N-m (20 lb.-in.)
Final Sequence: 5.6 N-m (50 lb.-in.)