Search found 22 matches

by andyolney
Thu Feb 22, 2018 3:02 pm
Forum: Centroid Acorn CNC Controller
Topic: Schematics .dwg file type conversion?
Replies: 2
Views: 68

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: 492

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: 492

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: 492

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: 492

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: 492

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...
by andyolney
Sun Feb 04, 2018 5:42 pm
Forum: Centroid Acorn CNC Controller
Topic: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies
Replies: 24
Views: 492

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

It's a 20 year old Boston Gear /Fincor / Ace KL inverter.
Just tried to start with the inverter on had a failure, turned the vfd off and was able to start fine.
Axis motors are working and don't seem to affect the startup.
Andy
by andyolney
Sun Feb 04, 2018 4:42 pm
Forum: Centroid Acorn CNC Controller
Topic: Anomalous Behavior of Beagle Bone Green on Acorn Board with separate power supplies
Replies: 24
Views: 492

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

Follow up on this issue. I have been having an intermittent failure to turn on but don't quite fit the profile since I have one of those Leadwell dual PS. Following a hint on the Hobby Machinist BB, I removed power from my VFC before turning on the Acorn and got it to boot. Looks like anything conne...
by andyolney
Sun Feb 04, 2018 4:30 pm
Forum: Centroid Acorn CNC Controller
Topic: Gecko G320x Acorn
Replies: 10
Views: 235

Re: Gecko G320x Acorn

Marty, All - I bought one of the relay boards Marty mentioned, the 4 relay version since it was only $2 more. No joy, after messing with it for a while. It it not really a "trigger", but it will turn on with either a 0 voltage or a 5 vdc input according to the jumper setting. The G320 error/reset pi...
by andyolney
Tue Jan 30, 2018 4:28 pm
Forum: Centroid Acorn CNC Controller
Topic: Gecko G320x Acorn
Replies: 10
Views: 235

Re: Gecko G320x Acorn

John -

I am not the first poster, but yes my G320 setup works fine, jogs, and runs a program.

Andy