spindle won't start EF4 error

[pyrodenis]

Have you checked the wiring in the VFD itself? I've had situations where one of the 2 wires got yanked out of the terminal block in the VFD. I've also seen it where they were both in the terminal block & pulling & reseating the connection fixed the problem. It might be worth a check.

-B

I'll try it. thnx.
you asked about USB. I may have read (some other part of vfd) that fast commands, stepping on each other, might cause a problem. Perhaps I'll try slowing my speed setting in SB3.
I hope tech support is in tomorrow. I was behind schedule, and hoping to make up over the weekend.

[Brady Watson]

The speed control shouldn't hiccup no matter what the SB is doing in terms of USB/pulse stream data speeds. It isn't putting out or receiving much data in either direction...only a few bytes.

I am sure support is around tomorrow & that they will know right away what the deal is.

-B