text: <s>[INST] power flex drive 753 failure after power recycle We have using approx fifty power flex drives in our plant and have had little trouble until the other day. We had a scheduled power outage with the power company they disconnected all phases at on time and repowered us after one hour. after that we noticed we had one drive 55 kw rating that did not power back up and are fed from the same line as ones that did. we checked voltage at the drive line input and is fine. we are at a loss as what and why this has happened. [/INST] Do you get absolutely nothing? No cooling fans, no HIM light, nothing at all? Have you inspected the interior of the drive? Has a capacitor failed catastrophically or vented (look for goo where no goo should be)? Do you have a spare control board? Install that and see if the drive powers up. \\n </s>