Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 135)

Rockwell Automation Publication 750-RM002B-EN-P - September 2013 135
Feedback and I/O Chapter 2
We look through the Port 10, Inverter section parameters and find that P13
[Alarm Status] Bit 0 shows if there is an active alarm on Inverter 1 section.