PLC Pie Guy
Member
We had several power failures today, the power was off and on a couple times by the time we got around to all the equipment and got the mains disconnected.
After power was restored hours later we go into startup and recovery mode. All was good throughout the plant with the exception of one safety relay that didn't want to reset and had to be replaced, as well as one breaker that supply's a VFD on a conveyor.
I reached in and reset the breaker. BANG!!!! about 2' from my face this drive blows like a shotgun! Luckily, the worst injury I got was scraping my arm on the cabinet as I was doing a backwards commando dive in reaction to the blast!
At the time, I just kept going, replaced the drive and did what I had to do. Once I left work yesterday, I started thinking how lucky I was that the drive didn't completely blow apart and cause serious injury.
This is a 2011 MFG. Powerflex4M that was running on 460VAC.
Wear you PPE kids, and play safe!
After power was restored hours later we go into startup and recovery mode. All was good throughout the plant with the exception of one safety relay that didn't want to reset and had to be replaced, as well as one breaker that supply's a VFD on a conveyor.
I reached in and reset the breaker. BANG!!!! about 2' from my face this drive blows like a shotgun! Luckily, the worst injury I got was scraping my arm on the cabinet as I was doing a backwards commando dive in reaction to the blast!
At the time, I just kept going, replaced the drive and did what I had to do. Once I left work yesterday, I started thinking how lucky I was that the drive didn't completely blow apart and cause serious injury.
This is a 2011 MFG. Powerflex4M that was running on 460VAC.
Wear you PPE kids, and play safe!