Torque specifications – Rockwell Automation 20B PowerFlex 700 Drive - Frame 7 Components Replacement User Manual
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Rockwell Automation Publication 20B-IN017B-EN-P - September 2011
Chapter 1 Component Diagrams and Torque Specs
Torque Specifications
The following table lists fastener locations by component, how the fasteners are
used, and torque specifications. Refer to
in this chapter for
fastening two-point, four-point, and six-point components to the heat sink.
Component Fastener
Application
Torque
lb•in
Torque
N•m
Fan Motor
Motor to Fan Cover Assembly
14
2
Fan Cover Assembly
Assembly to chassis
26
3
Fan Transformer
Transformer to chassis
26
3
Fan Capacitor
Capacitor to chassis
Hand tighten
MOV Surge Suppressor
MOV to chassis
14
2
Inverter Snubber Resistor
Resistor to heat sink
Initial sequence:
6
0.7
Final sequence: 26
3
Inverter Snubber Resistor
Wires to Capacitor Bus Bar Assembly
50
6
Inverter Snubber Bracket
Bracket to Power Module
80
9
Inverter Snubber Board
Board to Brackets
50
6
Converter Snubber Board
Board to Input Rectifier
50
6
Balancing Resistor
Resistor to heat sink
Initial sequence:
6
0.7
Final sequence: 26
3
Balancing Resistor
Wires to Capacitor Bus Bar Assembly
50
6
Heatsink Thermal Sensor
Thermistor to heatsink
14
2
Bus Capacitor Holder
Holder to Bus Capacitors
26
3
Capacitor Bus Bar Assembly
Assembly to Bus Capacitors
50
6
Gate Interface Board
Board to Power Modules
14
2
Inverter Power Module (IGBT) Bus
Bar
Bus Bar to Power Modules
80
9
Inverter Power Module (IGBT)
Module to heat sink
Initial sequence:
6
0.7
Final sequence: 32
3.6
DIN Rail (TB1)
Rail to chassis
50
6
PE Shortening Bar
Bar to TB1
80
9
Converter Power Module (SCR)
SCR to heat sink
Initial sequence:
6
0.7
Final sequence: 50
6
Transitional Bus Bar Assembly
Assembly to Power Module Bus Bar Assembly
80
9
Bus Fuse F1
Fuse to Transitional Bus Bar
80
9
DC Bus Inductor L1
Inductor to chassis
50
6
Bus Bar Cable Adaptor
Adaptor to Transitional Bus Bar and DC Bus
Inductor
80 9
Converter Bus and Motor Bus Bars
Bus Bars to all connections
80
9
Wires (PE)
Wires to Ground Stud
80
9
Wires
Wires to TB1
80
9
Wire (TE)
Wire to TB1
50
6