Newbie converting a PM-728VT

All things related to the Centroid Acorn CNC Controller

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DesertRider
Posts: 17
Joined: Mon Nov 30, 2020 6:49 pm
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CNC12: Yes
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CNC Control System Serial Number: 1116203993
Location: Phoenix, Az

Re: Newbie converting a PM-728VT

Post by DesertRider »

Thank you Marty. I ordered the snubbers and the contactor.
rbmcginnis
Posts: 1
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Re: Newbie converting a PM-728VT

Post by rbmcginnis »

DesertRider - did you decide to use just the one Acorn 24v power supply? I have the same question.
martyscncgarage
Posts: 7138
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Location: Mesa, AZ

Re: Newbie converting a PM-728VT

Post by martyscncgarage »

rbmcginnis wrote: Wed Dec 30, 2020 5:54 pm DesertRider - did you decide to use just the one Acorn 24v power supply? I have the same question.
Do not try and use the power supply that ships with Acorn for its logic power and try and drive an Estop contactor (or anything else other than perhaps Proximity switches or logic power to the axis drives). Its not big enough.
Better practice is to have a separate power supply to drive the Estop contactor or at least by a larger 24VDC power supply.

Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
DesertRider
Posts: 17
Joined: Mon Nov 30, 2020 6:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 1116203993
Location: Phoenix, Az

Re: Newbie converting a PM-728VT

Post by DesertRider »

F62C7A2A-C125-4F01-984C-65F6ADBE6A05.jpeg
The contactor arrived today, the Teknic setup came last week, but I forgot to order a cable which is due to arrive next week. Then I start wiring it up on the bench.
martyscncgarage wrote: Wed Dec 30, 2020 5:59 pm
What size enclosure have you used @martyscncgarage?
DesertRider
Posts: 17
Joined: Mon Nov 30, 2020 6:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 1116203993
Location: Phoenix, Az

Re: Newbie converting a PM-728VT

Post by DesertRider »

rbmcginnis wrote: Wed Dec 30, 2020 5:54 pm DesertRider - did you decide to use just the one Acorn 24v power supply? I have the same question.
I have ordered a separate DIN-rail mounted MeanWell 24V power supply for everything other than the Acorn board.
martyscncgarage
Posts: 7138
Joined: Tue Mar 28, 2017 12:01 pm
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Location: Mesa, AZ

Re: Newbie converting a PM-728VT

Post by martyscncgarage »

DesertRider wrote: Sat Jan 02, 2021 11:40 pm
rbmcginnis wrote: Wed Dec 30, 2020 5:54 pm DesertRider - did you decide to use just the one Acorn 24v power supply? I have the same question.
I have ordered a separate DIN-rail mounted MeanWell 24V power supply for everything other than the Acorn board.
I have purchased that power supply myself several times.
Strongly suggest the VFD cable from automationdirect.com

Good luck with your build.

Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
DesertRider
Posts: 17
Joined: Mon Nov 30, 2020 6:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 1116203993
Location: Phoenix, Az

Re: Newbie converting a PM-728VT

Post by DesertRider »

While still waiting for the mill to ship, have wired up today the Acorn with the Clearpath servos. Everything worked well. Added the contactor, and three inductive proximity sensors (have an order with AutomationDirect.com for normally closed prox sensors, but while waiting for them, have used some cheapo eBay NO sensors I had). Have cut off the Molex and wired directly into the board. Will have to choose out some 6 pin aviation style connectors for the motor wires.
IMG_6834.JPG
martyscncgarage
Posts: 7138
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
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MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Location: Mesa, AZ

Re: Newbie converting a PM-728VT

Post by martyscncgarage »

You might consider using Centroid's cable management system for your cabinet rather than installing bulkhead connectors for your motors. Its toward the bottom of the page: https://www.centroidcnc.com/centroid_di ... nents.html
For these smaller builds, I buy one, and cut it in half. Makes it easy to run and secure cables.
PL Cabinet.jpg
I have discovered these: HQ 10-Pin 5.08mm Screw Terminal Block Plug Shrouded Flange - Panel Mount
They make running limit switch wires easier and allow for the machine to be more easily disconnected from the cabinet
HQ 10-Pin 5.08mm Screw Terminal Block Plug Shrouded Flange - Panel Mount
PL Connector.jpg
I believe you can find the connector on Amazon as well. MDFLY.COM has an interesting variety of things that would help the DIY CNC'er

Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
DesertRider
Posts: 17
Joined: Mon Nov 30, 2020 6:49 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 1116203993
Location: Phoenix, Az

Re: Newbie converting a PM-728VT

Post by DesertRider »

martyscncgarage wrote: Fri Jan 08, 2021 10:32 am I have discovered these: HQ 10-Pin 5.08mm Screw Terminal Block Plug Shrouded Flange - Panel Mount
They make running limit switch wires easier and allow for the machine to be more easily disconnected from the cabinet
HQ 10-Pin 5.08mm Screw Terminal Block Plug Shrouded Flange - Panel Mount

I believe you can find the connector on Amazon as well. MDFLY.COM has an interesting variety of things that would help the DIY CNC'er
Marty
Thanks for the suggestions. I will look up MDFLY.

Today I finished wiring up all three motors. There was a little problem, as one of the motors would not respond to Acorn, but a phone call to Teknic's tech support promptly solved it. Very pleased so far with both the Acorn and Clearpath. Now I have the three motors running, with the e-stop, contactor and three induction switches working. Next I have to wait for the mill to see how all will tie together. Still need to decide on enclosure and cable management from the sensors/motors to the enclosure itself. Should be trivial, but as I have never done it -- it's quite a new thing.
Last edited by DesertRider on Sat Jan 09, 2021 12:15 am, edited 1 time in total.
martyscncgarage
Posts: 7138
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Location: Mesa, AZ

Re: Newbie converting a PM-728VT

Post by martyscncgarage »

What did you have to do to get the last motor turning?
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
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