I am stuck, I have a Mitsubishi MR-J2S-70A which I have just fitted as the spindle on my old Denford Triac mill, I have conected it up to a CNC4PC C41 PWM drive board nad have a nice 0-10v signal going into the drive via Mach3.
I have wired SON, EMG, Limits to GND on the CN1B socket of the drive along with the 0-10v and signal ground pair,  but upon power on I just get AL.06 which is EMG stop.

I have set the params according to the manual but there must be something I have overlooked.

All ideas welcome, Jason.

Got it sorted, I forgot to switch on the internal power supply VDD-COM

I am pleased that you found the problem.

If it's any consolation, I think we all overlook something every now and again ( at least I do ). 

Tweakie.