Allen-Bradley PowerFlex 20-750-20COMM, Installation Instructions Manual

Page: 210 / 302

210 Rockwell Automation Publication 750-IN001O-EN-P - October 2014
Chapter 4 Power Wiring
Wall Mount Frames 1…7
Table 27 - Power Jumper Default Configurations
Floor Mount Frames 8…10
Table 28 - Power Jumper Default Configurations
Table 29 - Recommended Power Jumper Configurations Wall Mount Frames 1…7
IMPORTANT
PowerFlex 750-Series drives, Frames 1…7, leave the factory with Jumpers PE-
A and PE-B in one of two possible configurations. Reconfigure these jumpers
based on the power source type available.
Cat. No. Position 11 Jumper PE-A
(MOV / Input Filter Caps)
Jumper PE-B
(DC Bus Common Mode Caps)
A Connected Disconnected
J Connected Connected
IMPORTANT
PowerFlex 750-Series drives, Frames 8…10, leave the factory with Jumpers
PE-A1, PE-A2 and PE-B in one of two possible configurations. Reconfigure
these jumpers based on the power source type available.
Cat. No. Position 11 Jumper PE-A1
(MOV)
Jumper PE-A2
(Input Filter Caps)
Jumper PE-B
(DC Bus Common Mode Caps)
A Connected Connected Disconnected
J Connected Connected Connected
ATTENTION: Risk of equipment damage exists. The drive power source type
must be accurately determined. Jumpers PE-A, PE-A1, PE-A2 and PE-B must be
configured for the power source type according to the recommendations in
Table 29 .
Power Source Type Jumper PE-A
(1) (2)
(MOV / Input Filter
Caps)
(1) When MOVs are disconnected, the power system must have its own transient protection to insure known and controlled voltages.
(2) Frame 5…7 Common DC Input drives do not have the PE-A jumper.
Jumper PE-B
(DC Bus Common
mode Caps)
Benefits Of Correct
Configuration on Power
Source Type
Non-Solid Ground
•
AC fed ungrounded
• Impedance grounded
• B phase ground
• DC fed from an active
converter
Disconnected Disconnected Helps avoid severe equipment
damage when ground fault
occurs
Solid Ground
•
AC fed solidly grounded
• DC fed from passive
rectifier which has a solidly
grounded AC source
Connected Connected UL compliance, Reduced
electrical noise, Most stable
operation, EMC compliance,
Reduced voltage stress on
components and motor bearings