Rockwell Automation 1305 AC Drive, Series A and B, Firmware 4.xx-5.xx - Manual (Page 138)

Chapter 6 – Troubleshooting and Fault Information
6-8
Table 6.B Bulletin 1305 Fault Descriptions (cont.)
Fault Name & Number Fault Description Action to Take
Undervolt Fault DC Bus voltage fell below the minimum value. [Line Loss
a l p r e er s pr r ed u
Monitor the incoming AC line for low voltage or line power
errup
Undervolt Fault
F4 DC Bus voltage fell below the minimum value. [Line Loss
Fault] parameter is programmed to “U Volt Run”. Monitor the incoming AC line for low voltage or line power
interruption.
UV Short Fault
F41 Excessive current has been detected between these two drive
output terminals. Check the motor and external wiring to the drive output terminals
for a shorted condition.
UW Short Fault
F42 Excessive current has been detected between these two drive
output terminals. Check the motor and external wiring to the drive output terminals
for a shorted condition.
VW Short Fault
F43 Excessive current has been detected between these two drive
output terminals. Check the motor and external wiring to the drive output terminals
for a shorted condition.