I did notice those on ebay and had seen that there was a driver for them. The price is very tempting. Especially since these are not mission critical or production machines.
On 02/02/2017 04:27 AM, andy pugh wrote: > On 2 February 2017 at 02:35, dragon <tfishw...@gmail.com> wrote: >> Are there any drawbacks to using MODBUS instead of the usual analog 10v >> interface? > > Response might not be quite so smooth during CSS facing cuts with a > lathe. I _think_ I can hear the speed changing in finite steps. > However the increased information about the drive makes up for it, I > think. (Such as a direct spindle-at-speed pin) > > If choosing to use Modbus, perhaps concentrate on those VFDs with a > dedicated driver. > > I am using a typical eBay HuangYang VFD on the lathe, and it works > nicely with the HAL module (even though it isn't _actually_ real > modbus, or so I have heard) > Some eBay adverts make a point of stressing that they are selling > genuine HuangYang, not fake HuangYang. >
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