On Tue, 20 Nov 2012 09:57:42 -0800, Jim Stewart
wrote:

If you have fluorescent lights in your shop,
turn them off and see if the VFD still trips
out. Mine sometimes does with them on, doesn't
with them off.

I know it's clutching at straws, but it won't
cost anything to try it.

I just tried your suggestion. Didn't work. I'm sure the problem is the
voltage is too high. The VFD says the voltage is too high. The specs
for the VFD say the voltage in my shop is too high. But it was worth a
try. Of course, if it was the lights then I would have had to try to
figure out a way to filter out the noise. I understand transformers
better than filters.
Eric
wrote:
The power to my shop runs on the high side. This has caused problems
with the spindle drive in one of my machines. Thanks to Paul Drahn I
will have some transformers soon to rectify, oh wait, it's AC, so
remedy is a better word choice, the power problem. In the meantime,
with the 8 inch chuck on the lathe, the power keeps spiking past the
limit and the lathe shuts down. So to lower the voltage I need to run
the manual lathe and the Bridgeport mill. Sheesh! I won't be getting
the transformers until the monday after Thanksgiving because of
various reasons, none of which have to do with the kind transformer
donor Paul Drahn or his son who lugged the things 1/12 hours closer
to me. And even if I had them I'm too busy to take the time to shut
the machine down to wire the voltage changers in. Fortunately all the
power consumed by the extra motors running contributes to heating the
shop so I can't complain too much. I just wanted to vent. And speaking
of the word vent, when I was a child my brothers and I would look
through encyclopedias at the pictures (artists conceptions) of
dinosaurs. There would be descriptions printed by and on the pictures
with arrows pointing to the descripted item. Eye, tail etc. We used
to laugh at the arrow pointing to the anus because it always said
"vent". So vent has always made myself and my brothers laugh. And we
are all pretty close to 60 years old.
Eric