KBAC-24D outlet problems

Different continent, different voltage, etc, but it may be worth checking out. I've had issues with both inverter welders and VFDs tripping thermal-magnetic breakers on the magnetic function due to high inrush current. If I reset quickly and powered back up while the capacitors were still charged, it didn't trip again and worked as normal.

I changed the type B breakers in the shop for type C and the problem went away. I don't know what the US equivalent specs are; over here, Type C are basically motor-rated and trip at momentary current of 5-10 times nominal, where Type B trip at a momentary current of 3-5 times nominal current.
 
update: I hooked up a new outlet out the front of the breaker box on its own breaker and it still gives me the overvoltage light. Tested the outlets with a receptacle tester and they read normal. I called the power company and they came out with a service tester and said their end is fine. :mad:
 
Good that there is no problem with your wiring.

That makes it sounds like something is set up wrong, or has gone wrong, with the VFD circuit board. If you are sure the incoming leads are on the right terminals, it may be simply a loose jumper, or a cracked circuit board????

You might want to call the Tech Support guys for your VFD maker and have them talk you through checking it out.
 
Have a better read of the manual, are you sure it's OVER voltage


Is the error code that specific, or do they use the same code for more than one fault?




You say it works ok if you use an electronic inverter, or take it somewhere else


Maybe it's just detecting a grounding fault or something ?
 
Have you called KB Electronics? If no, why not? They are very helpful and can help you now that you know the wiring is sound.
 
I had a similar issue when I got my new KBAC24. I checked all of my outlets in my garage, and the breakers and could not find a GFCI outlet anywhere. I then found an outlet behind the fridge that was a GFCI outlet. Changed that out, and everything now works great. Keep looking at your wiring, it is probably something simple. Also, I have found the people at KBAC to be very helpful.
 
As said before, all outlets in garage are supposed to be gfci protected. First outlet on circuit protects the downstream outlets.
 
I know there are supposed to be GFCI's, but the house is older and doesn't have any. I called KB and they said it must be an electrical problem in the house. It's overvoltage according to the manual because the LED panel goes Red-Yellow-off-green-off.
 
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