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EMCO PC55 mill, Servo card ribbon cable pinouts to ACORN controller

Posted: Wed May 26, 2021 7:58 pm
by bj_jcollins
Does anyone have the pinouts from an EMCO PC55 Mills servo driver card 16pin connector?

I just got my new acorn controller and am hoping to reuse the factory Driver card and 3-phase stepper motors. The factory card has a 16 pin ribbon cable input with the top wire #1 being RED.

I am hoping for something simple like, "#1red ribbon from emco card to Acorn Terminal st1
#2 Ribbon from emco card to Acorn Terminal DR1
#3 ect.....
#4 not used.

I can understand the info in a format like above, and know it's a lot to ask for.

Thanks
Jim

Re: EMCO PC55 mill, Servo card ribbon cable pinouts to ACORN controller

Posted: Thu May 27, 2021 1:37 pm
by cnckeith
onmy pc55 i replaced those drivers and motors with closed loop leadshine units and im happy with the much better performance of them. i recommend going that route.

Re: EMCO PC55 mill, Servo card ribbon cable pinouts to ACORN controller

Posted: Thu May 27, 2021 9:25 pm
by bj_jcollins
CNCKeith,

THANK YOU for the QUICK reply.

That is most likely the BEST route to go for long-term use if the little frame of this mill will work. I am not sure this little mill will have the travels that I need after it is fixtured and tooled up. Hoping to be able to try it out a little to prove it will work before spending many more dollars.

Do you recall the model numbers of the Leadshine units just in case?

Re: EMCO PC55 mill, Servo card ribbon cable pinouts to ACORN controller

Posted: Fri May 28, 2021 12:15 pm
by cnckeith
Leadshine driver. CS-D508

Leadshine motor. CS-M22430

motor is direct bolt up. all i had to do was bore the stock emco pulley to match the Leadshine motor shaft diameter.


Re: EMCO PC55 mill, Servo card ribbon cable pinouts to ACORN controller

Posted: Sun May 30, 2021 4:51 pm
by martyscncgarage
bj_jcollins wrote: Wed May 26, 2021 7:58 pm Does anyone have the pinouts from an EMCO PC55 Mills servo driver card 16pin connector?

I just got my new acorn controller and am hoping to reuse the factory Driver card and 3-phase stepper motors. The factory card has a 16 pin ribbon cable input with the top wire #1 being RED.

I am hoping for something simple like, "#1red ribbon from emco card to Acorn Terminal st1
#2 Ribbon from emco card to Acorn Terminal DR1
#3 ect.....
#4 not used.

I can understand the info in a format like above, and know it's a lot to ask for.

Thanks
Jim
Go to www.groups.io and search for the Emco-cnc-users group. Maybe you will find the answer to your question there.