Search found 26 matches

by andyolney
Fri May 21, 2021 11:50 pm
Forum: Centroid Acorn CNC Controller
Topic: Homing & Hard Limit Switches
Replies: 20
Views: 5215

Re: Homing & Hard Limit Switches

Dan- I'm slowly converting the same lathe and love the simplicity and clean look of the direct drive on the x and z-axis. It is much simpler than the belt drive I have been planning. I also have 425 oz-in motors and am curious how well they work in your design. Also what size is the z-axis ballscrew...
by andyolney
Fri Aug 28, 2020 1:49 pm
Forum: Centroid Acorn CNC Controller
Topic: Controlling Outputs and writing code
Replies: 7
Views: 3109

Re: Controlling Outputs and writing code

I'm curious, are you using the acorn stepper motor functionality to control your bale pickup mechanism? Andy Olney
by andyolney
Sat Mar 03, 2018 4:33 pm
Forum: Centroid Acorn CNC Controller
Topic: Reset on a Gecko 320
Replies: 8
Views: 3396

Re: Reset on a Gecko 320

I am also trying to figure out how to get the G320 to report to the acorn that a fault has occurred. I have a momentary contact switch to turn on the drives. I think they have a latching circuit and when the drives fault the latch is released and the output seems to be about .5 volts. A relay board ...
by andyolney
Thu Feb 22, 2018 3:02 pm
Forum: Centroid Acorn CNC Controller
Topic: Schematics .dwg file type conversion?
Replies: 2
Views: 1514

Re: Schematics .dwg file type conversion?

Here you go. R12 version, change the extension back to dwg, let me know if it does not work.
No need for money.

Andy
by andyolney
Tue Feb 06, 2018 3:41 pm
Forum: Centroid Acorn CNC Controller
Topic: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies
Replies: 24
Views: 8747

Re: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies

I have the common tied together on both the acorn and the vfd, including the 0 to 10 volt speed control.
The voltage between the common and the forward terminal is about 23 volts.
Andy
by andyolney
Mon Feb 05, 2018 5:37 pm
Forum: Centroid Acorn CNC Controller
Topic: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies
Replies: 24
Views: 8747

Re: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies

Yes, Acorn starts with both power off to the VFD and the terminals 4 and 5 disconnected.

Attached is the manual, looks like a relevant bit might be this:
clip.JPG
Thanks for the help.
Andy
by andyolney
Mon Feb 05, 2018 2:47 pm
Forum: Centroid Acorn CNC Controller
Topic: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies
Replies: 24
Views: 8747

Re: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies

Marty- Ouch, wrong again! Somehow I got the diode direction wrong in my head in the Acorn output schematic. The vfd does indeed have a positive voltage (about 23v) at terminals 4 and 5 when I disconnected from the acorn. On the other hand, the acorn seems to control it fine: CW, CCW, and speed contr...
by andyolney
Sun Feb 04, 2018 11:58 pm
Forum: Centroid Acorn CNC Controller
Topic: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies
Replies: 24
Views: 8747

Re: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies

Marty -
Your are right, after looking at the Centroid output schematic, I think I am seeing the voltage from the Acorn not the VFD. I have the thing programmed for 2 wire control. Terminal 3 is ground, top diagram. No good schematic in the vfd manual.

Andy
IMG_20180204_192755.jpg
by andyolney
Sun Feb 04, 2018 8:10 pm
Forum: Centroid Acorn CNC Controller
Topic: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies
Replies: 24
Views: 8747

Re: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies

It supplies voltage, I am seeing about 23 v, and the acorn output pulls it low. At the moment, am going to make it part of my startup to turn on the VFD last. Actually made my first part for my lathe conversion last night, a cover plate for the the x axis motor mount, the simplest part I could think...