Spindle Control with the Acorn

All things related to the Centroid Acorn CNC Controller

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rc211961
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Spindle Control with the Acorn

Post by rc211961 » Mon Feb 05, 2018 10:01 am

Hi all, My name is Ron and I have big harbor freight Bench top mill. I'm new to the cnc world and I'm trying to convert my mill to cnc. I've changed the motor to a 2 hp DC, it has a Penta Drive dc motor speed control Nema-4x / IP-65. My question is will the Acorn control the motor control driver for the spindle? and if so that would the wiring be to make it work.
Thanks for the help, Ron

Dave_C
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Re: Spindle Control with the Acorn

Post by Dave_C » Mon Feb 05, 2018 11:13 am

it has a Penta Drive dc motor speed control
Do you have a diagram for this controller that you can post?

Acorn can control most drive controllers if the controller will take a 0-10vdc signal. Just download the Centroid pre-prepared drawings from the website and it will show you how to wire all the inputs and outputs.

There are several examples of wire for different types of drives.

Dave C.
Grizzly G0678 CNC conversion with Acorn in progress!

frijoli
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Re: Spindle Control with the Acorn

Post by frijoli » Mon Feb 05, 2018 7:43 pm

rc211961 wrote:
Mon Feb 05, 2018 10:01 am
Hi all, My name is Ron and I have big harbor freight Bench top mill. I'm new to the cnc world and I'm trying to convert my mill to cnc. I've changed the motor to a 2 hp DC, it has a Penta Drive dc motor speed control Nema-4x / IP-65. My question is will the Acorn control the motor control driver for the spindle? and if so that would the wiring be to make it work.
Thanks for the help, Ron
Which drive do you have? Some have reversing with analog in, but not all of them. Penta drives are basically just KB electronics DC drives in a box. At least all the ones I have seen are.

Clay
Clay
near Winston-Salem, NC
unofficial fb group https://www.facebook.com/groups/897054597120437/

martyscncgarage
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Location: Mesa, AZ

Re: Spindle Control with the Acorn

Post by martyscncgarage » Tue Feb 06, 2018 9:52 am

rc211961 wrote:
Mon Feb 05, 2018 10:01 am
Hi all, My name is Ron and I have big harbor freight Bench top mill. I'm new to the cnc world and I'm trying to convert my mill to cnc. I've changed the motor to a 2 hp DC, it has a Penta Drive dc motor speed control Nema-4x / IP-65. My question is will the Acorn control the motor control driver for the spindle? and if so that would the wiring be to make it work.
Thanks for the help, Ron
You MUST use the signal isolator with the DC drive. As others have mentioned, need to know which DC drive you have, model number.
"Jack of all trades, master of none!"
Mesa, AZ

rc211961
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Re: Spindle Control with the Acorn

Post by rc211961 » Tue Feb 06, 2018 5:00 pm

Penta Drive NEMA-4X, IP-65
kbpc225 (white) - data.pdf
Penta Drive Info.
(473.39 KiB) Downloaded 5 times

martyscncgarage
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Re: Spindle Control with the Acorn

Post by martyscncgarage » Tue Feb 06, 2018 7:35 pm

rc211961 wrote:
Tue Feb 06, 2018 5:00 pm
Penta Drive NEMA-4X, IP-65kbpc225 (white) - data.pdf
Here is the full manual: https://www.kbelectronics.com/manuals/K ... manual.pdf

You need the signal isolator.
Do you need to reverse the spindle for anything? If not, all you need is the signal isolator. Acorn will control it.
Use the KBIC Motor Control Schematic as a guide.

Marty
"Jack of all trades, master of none!"
Mesa, AZ

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