text: <s>[INST] Power fail on Powerflex 400 Please help with this one as well, same client same powerflex 400 250A unitI am getting really tired of this Power Loss Fault, and the worst part is it does not auto-reset not does it allow me to reset remotely. No, I did NOT experience a dip during operation – the other running drive had no problem. It’s costing us water now at the rate this is going... So it seems the bus volts did drop. A bit strange that other running drive did not also report a fault... why? In any event, WHY does it not auto-reset? Or, alternatively, if this is a fault that does not permit auto-reset then why can I not even reset a Power Loss Fault with the reset input OR with the Fault Clear Parameter (197)? From Subject Received Size Joshua Grimm power loss fault drives 3:33 AM 88 KB [/INST] Did you see Aid 49990 ? There is a known problem with some PF400... maybe you're in that case... A Type 2 fault may require drive or motor repair, or is caused by wiring or programing errors. The cause of the fault must be corrected before the fault can be cleared. Hope this helps - fuzzy logic \\n </s>