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Rockwell Automation Publication 20P-TG004C-EN-P - September 2021
Chapter 2
Component Test Procedures
This signal is a square wave signal with a 90° lag phase displacement
compared to the AC voltage signal.
2.
Measure the gate signals at pins XR-1 and XR-2 on the cable. The figure
below displays the following signals from top to bottom:
•
If the gate signals are missing, replace the control board.
•
If the gate signals are present, replace the field board.
Channel
Signal
1
U1-V1 Sync
4
Ie - LEM current feedback signal taken on LA-LB terminal
2
ITF1 pulse
3
ITF2 pulse
LA-LB
U1-V1 Sync
ITF1 Pulse
ITF2 Pulse