Connecting AASD Servo to Acorn

[thomsl@mac.com]

I finally got my spindle working using ACORN's analog output or at least I can turn it on and off and increase and decrease the speed. However, when the motor is enabled on the AASD driver the servo turns at 45 rpm. This is without the ACORN on. When the ACORN is on, the RPM in CNC 12 and the RPM of the AASD controller do not match. The AASD drive RPM is about 3 times the RPM that ACORN shows.

I am guessing I have at least 2 things I do not understand well. I am not sure what Pn settings I should be using on the AASD Drive and I am not sure how to configure the AASD motor in ACORN. I have searched the web for anyone using the analog output but have not found anything that was straightforward.

Currently, I am using the following Pins on the DB25 from the AASD Driver:
Pin 1 Ground to common/ground on the power supply
Pin 13 AGRND connected to AN GND on the ACORN
Pin 25 Vref connected to AN OUT on the ACORN

On the AASD Driver:
Pn002 set to SPEED Mode
Pn003 Servo Enabled (eventually this will need to be controlled by an output)

Thanks for any help,

[carpa1970]

hi, put the pn164 on 1 which should block the engine
below the minimum speed set in pn165.
watch this video: