Roscoepcoltrane
Plastic
- Joined
- Oct 24, 2019
Hello everybody,
I have a blown capacitor in my VFD, and now it is dead. I can't see anything else that is obviously grilled. If I replace the capacitor(s), what are my chances it will come back to life? what else could have failed as a result of the capacitor shorting out (I think that's what happened)?
I did a diode test between the positive dc bus terminal and the ac output and input terminals, and that was all ok. However, testing between ground and the ac terminals gives no result. There is a relay behind the capacitors, what does that do? does that make a ground connection maybe?
I hope someone can help out,
....
I have a blown capacitor in my VFD, and now it is dead. I can't see anything else that is obviously grilled. If I replace the capacitor(s), what are my chances it will come back to life? what else could have failed as a result of the capacitor shorting out (I think that's what happened)?
I did a diode test between the positive dc bus terminal and the ac output and input terminals, and that was all ok. However, testing between ground and the ac terminals gives no result. There is a relay behind the capacitors, what does that do? does that make a ground connection maybe?
I hope someone can help out,
....