text: <s>[INST] PF755 Converter AC Single Phase Loss Fault Summary: What is this error and why does it only happen when the drive is under load? If i run the motor at 100% for 2-3 minutes, this fault occurs. Im assuming it has something to do with the loading. What do i need to look for? [/INST] You should have a copy of the programming manual handy: http://literature.rockwellautomation.com/idc/groups/literature/documents/pm/750-pm001_-en-p.pdf Go to page 305, error 17. The descriptions / actions for this fault are actually pretty straight forward. You say it happens only under load. What is the load/application? Does your load cause any sort of rapid, cyclic regeneration? The third bullet point would seem to be the correct solution for you, but you might want to look at the AC input as well. \\n </s>