Search found 451 matches

by Richards
Mon Jan 18, 2021 12:28 pm
Forum: Centroid Acorn CNC Controller
Topic: Configuration du driver
Replies: 20
Views: 257

Re: Configuration du driver

Running a CNC machine from Solar will be interesting because of the power requirements, not only of the drives and motors, but also for the spindle. Let us know how it works for you. Stepper motors, including closed loop stepper motors, are designed to turn the shaft a precise amount, usually 1.8-de...
by Richards
Sun Jan 17, 2021 11:18 am
Forum: Centroid Acorn CNC Controller
Topic: Configuration du driver
Replies: 20
Views: 257

Re: Configuration du driver

You asked specifically about the Enable signal. My steppers DO NOT require the Enable signal. In fact, if I connect an enable signal to the stepper drivers, the drive is put in a power-down mode. As Keith, Marty, and others have said, using the DB-25 connector for steppers and the H connectors for s...
by Richards
Sun Jan 10, 2021 12:28 pm
Forum: Centroid Acorn CNC Controller
Topic: No Motion With Clearpath On First Try (Resolved)
Replies: 14
Views: 351

Re: No Motion With Clearpath On First Try

Keith's post reminded me that I can easily show what I've done. I don't have the necessary equipment to make a decent video, and if I didn't use some other actor, you'd all be bored stiff watching me mumble my way through a video; so, here's screen shot of the basic MSP screen with one of my CPM-SDS...
by Richards
Fri Jan 08, 2021 10:21 am
Forum: Centroid Acorn CNC Controller
Topic: Axis moving on it's own
Replies: 6
Views: 167

Re: Axis moving on it's own

Nigelo, one lead on an oscilloscope is connected to GRN,; the other lead is touched to a terminal or connection point of the signal being tested. The oscilloscope must be configured so that the voltage range being checked fits on the 'scope's display screen. The frequency range must be configured to...
by Richards
Thu Jan 07, 2021 4:53 pm
Forum: Centroid Acorn CNC Controller
Topic: Axis moving on it's own
Replies: 6
Views: 167

Re: Axis moving on it's own

Your report will help those who know how to read them help you find the source of the problem. Can you attach a photo with clear detail on how things are wired? Someone might see something that might help. There is always a possibility that a board is faulty, but I haven't read about Acorn boards se...
by Richards
Thu Jan 07, 2021 1:49 pm
Forum: Centroid Acorn CNC Controller
Topic: Axis moving on it's own
Replies: 6
Views: 167

Re: Axis moving on it's own

Do you have access to an oscilloscope? A motor moves when it receives electrical signals telling it to move. I'm guessing that you have significant noise on the step signal. A 'scope will show that noise, then you can turn off / move other signals until you've found the source of the noise.
by Richards
Thu Jan 07, 2021 1:46 pm
Forum: Centroid Acorn CNC Controller
Topic: No Motion With Clearpath On First Try (Resolved)
Replies: 14
Views: 351

Re: No Motion With Clearpath On First Try

Are the shafts on the ClearPath motors locked? The enable signal should lock the shafts. You wrote that you have green LEDs, so the shafts should be locked. Tell us about how you've wired the motors. Page 171 of the ClearPath user's manual shows that wires, Black, White, and Blue should be connected...
by Richards
Tue Jan 05, 2021 4:18 pm
Forum: Centroid Acorn CNC Controller
Topic: VFD Interference with Clearpath Servos
Replies: 17
Views: 434

Re: VFD Interference with Clearpath Servos

Smoke is never a good sign. We call it "letting out the magic blue smoke". Is there any chance that you connected H1-Voltage IN or H4-Voltage IN to H2-Common? The Common signal is next to Step-2. Here's a screen shot of page 47 of the Teknic ClearPath manual that shows where to add the res...
by Richards
Mon Dec 28, 2020 6:42 pm
Forum: Centroid Acorn CNC Controller
Topic: No step and direction signal?
Replies: 17
Views: 448

Re: No step and direction signal?

The DB-25 breakout board is the best option. If you're curious, here is a simple schematic of how I wired a G203v using the Hx connectors: (Please note that the resistors are 2 WATT)

G203v.png
G203v.png (5.48 KiB) Viewed 177 times
by Richards
Mon Dec 28, 2020 10:37 am
Forum: Centroid Acorn CNC Controller
Topic: VFD Article
Replies: 10
Views: 416

Re: VFD Article

Thanks Marty. That's an excellent article. As far as grounding a cable on both ends goes, I just measure the resistance of the shield on the cable. If there is measurable resistance, then I only ground the controller side of the cable. If there is no measurable resistance, then I ground both ends of...