[takeda]

I finally used an RC filter to smooth the pwm into DC, just for a check.

After using a voltmeter I measured the output voltage rated 0V to 3V.

The DBZ200 I found in the cnc installation has on input pin for both VI and CI and its called AI (Analog input probably), plus a mechanical switch to select VI or CI.

The problem is that when I configured the VFD to be controlled from Terminal (and not from keyboard) I had no success with AI configured as VI. When I changed the input to VI+CI from within the VFD the spindle worked.

I guess I need a voltage buffer or something in order to work as Voltage controlled.

Then I had to configure the CI min and CI max value from 0.05 to 1.6 almost to fully control the spindle speed.


The strange thing is that when i set the mechanical switch VI,CI to CI it was not working.

[neilw20]

Do you have the VFD manual in electronic form? A pdf maybe.
I am sure there is a way. Just have to study it in more detail.
Trial usually leads to error. Analyze the problem, and solve it.
Then wire it up and it will work. There are so many combinations that may not work, so trial and error will probably frustrate you eventually.

[mick-uk]

Has the wiring for this ever been solved?

I had a Fuling VFD with the same wiring:

FWR looped to ACM, MI1, MI2, MI3

Before disconnecting old unit I got the following settings:

PIN: SETINGS:
Fwd: F2.01 1 FORWARD
Rev: F2.02 2 REVERSE
MI1 F2.03 12 MULTISPEED1
MI2 F2.04 13 MULTISPEED2
MI3 F2.05 14 MULTISPEED3
MI4 F2.06 00 NOT USED

im trying to connect replace this with the haunuang VFD I've tried to program pins for hi med low as multispeed 1 2 3, but cant seem to get the spindle to work.

Connections are from nc studio controller card.

help much appreciated.
mick,