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Alpha step motor and driver help

Posted: Tue Mar 14, 2017 5:45 pm
by gregouellette
I am rebuilding a Powerarm CNC router. this thing is a beast weighs over 1500 lbs..
ASD16D-C AlphaStep Closed-Loop Drive and a VEXTA ASM69AC steppers on the Z axis, this replaced the Mitsubishi servo motor and drive.
with the ASM911AC stepper and ASD20A-C drive on the X and Y axis. My issue now is I need to find a breakout board and a smoothstepper so I can use Mach 3.
It is using a 3 hp Portercable route but I want to upgrade to a VFD in the near future.

Any help and input would be greatly appreciated.

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Re: Alpha step motor and driver help

Posted: Wed Mar 15, 2017 7:56 am
by om_tech_support_JS
Hi gregouellette,

In regards to your application, we unfortunately do not offer the smooth stepper control board. You would need to purchase one of these through a third party. For the breakout board, the closest option that we offer is a terminal block unit. You would be able to purchase the CC36T10E Terminal Block Conversion Unit in order to take the 36 pin connection on the drivers and convert those to a terminal block connection. I have linked the CC36T10E below for your reference: ... r=&by=prod

Otherwise, you would need to solder the cable from your controller to the 36 pin connector on the driver. From the picture which you provided, it looks like the ribbon cable was soldered to the 36 pin connector which comes with the pulse input type driver.

Re: Alpha step motor and driver help

Posted: Thu Mar 16, 2017 5:42 am
by gregouellette
thank you

would it be possible to use off the shelf items like to following with my drivers. And install a regular nema motor and driver on the Z axis and

Re: Alpha step motor and driver help

Posted: Fri Mar 17, 2017 11:45 am
by om_tech_support_JS
Hi gregouellette,

The current motor and driver part numbers which you are using are part of a closed loop system. Therefore, there is built-in resolver feedback between the motor and the driver. In order for the motor and driver to function properly, they need to be operated together.

The current drivers are pulse input type drivers. Therefore, they will need pulse and direction signals from an external controller. Each driver will have a 36 pin connector on it for the inputs and outputs. Depending on which of these I/O you are using, you will need to have a controller that accepts these connections. In order to get motion out of the motor, you will need to at least provide the pulse and direction signals (4 pins per driver totally 12 pins for the CW and CCW inputs 9-12). For more information on the 36 pin connector, please reference pages 28-30 of the manual linked below: ... 59-18E.pdf

For a reference to the function of each pin, please reference page 34 of the manual. Further information on each function can be found on the following pages 35-39.