Hybrid Drive problem
- Thread starter Chris Railey
- Start date
JeremyBartlett
Well-Known Member
Here is a screenshot of the manual on the light codes...hope this helps.
Chris Railey
Well-Known Member
According to the light its “undervoltage”. I have run it off of this outlet for many months. Why now?
Daniel Macina
Well-Known Member
Exact same thing happened to mine and ended up just being a loose wire in the plug. I would check that first.
Chris Railey
Well-Known Member
The plug in the wall or your drive?
Daniel Macina
Well-Known Member
the drive.
Chris Railey
Well-Known Member
Must be another problem. All wires tight. I tried it on the same plug I run my 2HP 110v press on and nothing. I am dead in the water with orders hanging out there.
Last edited:
Sean Jones
Well-Known Member
I know it's a NEMA enclosure but do you have any amount of dust on the inside? On mine I get a little bit every now and then. It might be worth blowing any dust out if there is any.
Also it is possible you may have enough voltage to run the motor but not enough to run a more sophisticated piece of equipment like your KBAC. Variations in voltage is more common than you might think. Try a different outlet, preferably on a completely different circuit.
Hope that helps
Also it is possible you may have enough voltage to run the motor but not enough to run a more sophisticated piece of equipment like your KBAC. Variations in voltage is more common than you might think. Try a different outlet, preferably on a completely different circuit.
Hope that helps
Chris Railey
Well-Known Member
No dust, I do have a multi-meter I can check the outlet with maybe the outlet is going bad. It did run once this morning after giving the under voltage warning but nothing since. If I use an extension cord I can try other outlets. Would that help?
Daniel Macina
Well-Known Member
Have you checked the power cord wires on the inside of the VFD?
tkroenlein
Well-Known Member
First spot I'd check given your description is the breaker. It sounds like you dropped one leg of your input.
Chris Railey
Well-Known Member
Thanks to all, I checked the outlet I have good power at the outlet. I have good power in the Hybrid Drive but no power from the drive to the motor. Something in the hybrid drive must be broken. I have an email into Jose I Hope I am still under warranty. Thanks again
Bruce McLeish
Well-Known Member
I keep warning y'all to not let the smoke outta them there eletronical devices. They need that smoke to keep on workin'.
bladegrinder
Well-Known Member
When you say you have power inside the Kbac, are you reading 220?if your reading 110 on either terminal it could be back feeding and your reading the same leg not 220. Just guessing
Chris Railey
Well-Known Member
Sorry guys I did not mention it is a 110v model not 220v.
bladegrinder
Well-Known Member
Then if it’s not the kbac, the only thing it could be is a lower voltage then what the kbac is allowing to be acceptable for it to operate. Either take readings on the buss bars at your Panel or other ares of your house with a good meter. That kbac might not turn on if the voltage is is 105-108 instead of 110-120. I’ve seen it in houses before, and it will damage things
Chris Railey
Well-Known Member
Its the kbac. Inside the box where you attach the power plug I have 120v. On the other side where the power cord for the motor attaches there is zero power. The kbac has to have a problem.
Sean Jones
Well-Known Member
Do you see cracks in any of the components? Can you post a pic of the inside of the box?
John Wilson
Well-Known Member
When a drive has a terminal fault there will not be anything on the output. Usually you have to power down the drive completely to reset a terminal fault. Terminal faults can be anything, but most often it an overcurrent detection fault. If the motor gets hot and the insulation breaks down it can draw high current just long enough to fault the drive.
Like others have said, undervoltage on the input is another common terminal fault.
A third problem can sometimes be a grounding issue. If you don't have a good earth ground then there can be oddball eddy currents / noise / line spikes from the VFD to the motor and back that will cause some very odd and intermittent things.