Centroid Community CNC Support Forum

The signal GND on the drive should connect to one of the COM terminals on the Acorn or DB25 breakout board (pins18-25).

Draft using DB25 step and direction connections.

Take a look at S15032. It's not the same drive, but the control signal wiring to the DB25 is the same.
https://www.centroidcnc.com/dealersuppo ... 032.r2.pdf

This is a draft schematic created from the information in the "Easy Start Guide".

A more complete manual or even a complete drive name and model number would be helpful.
But looking at the information provided, I would say you're correct about the pin numbers.

I think you have most of the connections figured out. According to the manual X3 is by default
programmed to be the fault reset. I'm attaching a draft schematic of the connections described in the manual.

From looking at the picture and counting terminals it looks like the current connections are: Yellow = ACM (Analog common) Green = VI (Voltage Input) Red = S1 (Input Signal 1) Blue = DCM (Digital Common) Red = B (Relay Common) Black = C (Relay NC) I made a drawing showing these connections to the Ac...

If the stepper drives were working when connected to the terminals and not when you selected DB25 then the Enable signals need inverted when using the DB25. On these, like most stepper drives, the "Enable" signal is actually a disable signal. So if you selsct DB25 and want to use the enabl...

Please follow this AcornSix to Dyn4 schematic:
https://www.centroidcnc.com/dealersuppo ... 164.r1.pdf

No the Auto-squaring enable jumper isn't necessary with the AcornSix board as the enable signals are handled slightly different than on the Acorn.
You can follow schematic s15145 for connecting ClearPath motors to AcornSix.
http://192.168.0.238/schematics/uploads/S15145.r2.pdf