Centroid Community CNC Support Forum

Not sure this is a proper question for the user forum. Perhaps I should be using paid support. I am using two 500W Sigma-7 (AnalogVoltage/PulseTrain) drivers for the Z and X axes on my lathe project. The relevant Technical Bulletin referenced in the Oak Setup Manual is TB267 (Rev. 6) "CNC11 Yas...

It all works exactly as you folks have described. I was wondering if it was possible to attach an encoder to two "Axes". Amazing how configurable this system is. By the way, my MPG and spindle encoder both appear to work correctly with no errors reported on the Encoder screen. I have attac...

Yes, or course. That makes perfect sense. Thanks again.

Tom,
The Encoder screen you described only appears to display the encoders associated with motor axes.
Is there a trick to see encoder #15 (wired MPG) or #6 (spindle).

Sorry for my late reply, but thanks Marc for the excellent explanation. It is good to know that there may be a professional available if I need more help than I can reasonably expect to get for free (grin). I am providing a customized MPG box for my Hardinge/Accuslide retrofit. It will plug into H19...

I have read in a couple of places that the MPG on an Oak board uses Encoder #15. On my new system, parameter 348 (MPG Encoder) is 0 by default. Do I need to change parameter 348 to a value of 15 for proper operation of the MPG with the standard lathe PLC? I would assume so, but assuming things has b...

Oops! The JST connectors used on the Oak board are actually PAD series. They have a different locking mechanism than the PHD series. Sorry for posting incorrect information.

An alternative to crimping these tiny terminals for the JST 2.0mm connector is to buy pre-crimped leads. Without the $500 tool, reliable crimping is a bit difficult. The DigiKey PN 455-3086-ND is a 12" long piece of #22 wire with terminals attached to each end. You can cut it in half to get two...

Excellent! Exactly the information I needed, Tom. Thanks also for the suggestion about selecting a very-high resolution scale on the X axis.

I am considering using glass scales on the X and/or Z axes for a Hardinge/Accuturn retrofit. It will depend on how accurate things are using just the encoders on Yaskawa AC servos and relying on the ball screws: we need to hit some very tight tolerances on diameters. I will be working with an Oak bo...