Oh, The Misery…My Drive Just Alarmed on Over Temperature - What do I do now?
Oh, the pain...the misery…the teeth gnashing and, oh yeah, the cursing! Your drive just alarmed on overtemperature, your equipment has stopped, production has ceased, and you are wasting time and money. Can the drive be saved? The good news is…YES!
But before it comes to this point, consider this: We all know HEAT is the root of all evil when it comes to electronic equipment. Combine the heat with a little Dirt and Moisture and you have the electronic axis of evil!
So, start by practicing prevention first:
- keeping your electrical cabinets CLOSED
- keeping your VFD FANS in good REPAIR
- making sure those cabinent FILTERS are always CLEAN
Eventually, most drives will likely experience overtemperature alarms or deviation/function alarms. Avoid swapping the top boards to troubleshoot – yes, we know, it usually works out ok. However, it’s a risky move. Faulty circuit boards can blow the power modules which then blows the top circuit boards and you end up with more than one machine down! And you thought you were frustrated BEFORE!
You can check for the correct base drive voltages on the top board without DC bus voltage. This can help identify the location of the problem. Contact your OEM and find out how to check the power modules with an ohmmeter, or give us a call and we can walk you through it 800-962-6355
If you are past the warranty date (you did keep the warranty information didn't you?) and need third-party service on your drive, send us your drive for fast and reliable repair. We offer free evaluations, a lifetime warranty on both parts AND labor, rush services for emergencies, and outstanding customer service.







