Rockwell Automation 20B PowerFlex 700 Drive Components Replacement - Frame 8 - Manual (Page 51)

Rockwell Automation Publication 20B-IN024C-EN-P - June 2012 51
Component Replacement Procedures Chapter 3
Install Components
1. Install the IGBT module.
a. Use isopropyl alcohol to thoroughly clean the mounting surface of the
heatsink and the mounting surface of the new IGBT module.
b. Use a 3- or 4-inch paint roller or putty knife to 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.
c. Place the IGBT on the chassis with the serial number label at the top.
Install with supplied screws using this torque sequence:
2. Install the three supplied positive flexible capacitor busbars in positions 2,
4, and 6 on the IGBT.
The positive flexible capacitor busbars have a shorter angle.
➑
➋
➍
➏
➎
➌
➊
➐
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)
Positiv
e
(+
) Flexible Capaci
tor
Busbars
1
2
3
4
5
6
Negativ
e
(-)
Flexible
Capacito
r Busbars
Shown with Transitional Busbar and all Flexible
Capacitor Busbars installed for illustration
purposes only.