On 2 February 2017 at 02:35, dragon <[email protected]> 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. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
