Rockwell Automation 20D PowerFlex 700 Installation Instructions - Frames 7…10 - Manual (Page 69)

Rockwell Automation Publication 20B-IN014H-EN-P - June 2013 69
PowerFlex 700 Adjustable Frequency AC Drive – Frames 7…10
AC Precharge Board LED Indications
The LEDs are above the “Line Type” jumper shown on page 33 .
Name Color State Description
Power Green Steady Indicates when precharge board power supply is operational
Alarm Yellow Flashing
[1]
[2]
[3]
[4]
[5]
[6]
[7] Number in “[ ]” indicates flashes and associated alarm (1) :
Low line voltage (<90%).
Very low line voltage (<50%).
Low phase (one phase <80% of line voltage).
Frequency out of range or asymmetry (line sync failed).
Low DC bus voltage (triggers ride-through operation).
Input frequency momentarily out of range (40…65 Hz).
DC bus short circuit detection active.
(1) An alarm condition automatically resets when the condition no longer exists
Fault Red Flashing
[2]
[4] Number in “[ ]” indicates flashes and associated fault (2) :
DC bus short (Udc <2% after 20 ms).
Line sync failed or low line (Uac <50% Unom).
(2) A fault indicates a malfunction that must be corrected and can only be reset after cycling power.