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Wantai SS880 drivers with DB25-1205 BOB

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12 Feb 2020 19:41 #157209 by hIGGI
Ie : no way to get spindle control via my BOB ? :)

If i should go Mesa, which one to get?

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12 Feb 2020 20:09 #157213 by tommylight

Ie : no way to get spindle control via my BOB ? :)

If i should go Mesa, which one to get?

That is a bob with 17 optocouplers and nothing else in it
Yes there is a way, but it would require knowing electronics and adding some of that between your BOB and VFD.
There is also the possibility of using it as is, granted the VFD can be controlled with 0-5V instead of 10V and it has inputs for RUN and DIR. In this case you would use 3 outputs from the bob, one for PWM besides two mentioned before.

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26 Feb 2020 23:40 #158585 by andypugh
USB - modbus dongle to the VFD might be an option.

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26 Feb 2020 23:58 #158586 by hIGGI
Friend made me PWM to 0-10V generator, but sadly chinese WM spindle motor does not like ABB industrial type VFD (makes very bad noise on VFD). Other motor tested on VFD worked fine, does not seems to be issue with VFD. Running on original transmission now, but i think i will ditch it, its noisy.

Been busy with other work, so not much on cnc updates.

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