Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX - Manual (Page 284)

12-2 Troubleshooting
• hand tachometer used to monitor motor speeds
• programming device instruction manual
Fault/Warning Handling When a problem occurs with your drive, check the VP and CP lights
on your drive. Figure 12.1 shows the location of the VP and CP lights.
Figure 12.1
VP and CP LED Locations
The lights on the motor control board indicate the status of the
velocity processor (VP) and current processor (CP):
!
ATTENTION: Potentially fatal voltages may result
from improperly using an oscilloscope and other test
equipment. The oscilloscope chassis may be at
potentially fatal voltage if not properly grounded.
Allen-Bradley does not recommend using an
oscilloscope to directly measure high voltages. Use an
isolated measuring device with a high voltage probe.
Contact Allen-Bradley for recommendations.
INV
EN VP CP
Green
Red
Frames A1 – A4
Frames B – H
Language
Module
CP
INV EN
Green
VP
Green Green
Red Red
If the VP or CP LED is: Then, for that processor:
Solid green No fault occurred.
Flashing green A drive warning occurred.
Flashing red A drive soft fault occurred.
Solid red A drive hard fault occurred.