Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: dang on September 20, 2008, 03:50:44 AM

Title: Motors won't turn
Post by: dang on September 20, 2008, 03:50:44 AM

I just put together my CNC system. It's a G540 I bought in kit form from Keling. The G540 seems to be working, the green light is lit. I watched the setup video. I then reinstalled Mach3 so I could open up the motor tuning menu. I'm not getting any kind of movement out of the motors at all, they just get hot and quickly too. It feels like I'm missing something obvious here. Any suggestions?

Title: Re: Motors won't turn
Post by: Hood on September 20, 2008, 06:20:30 AM

Have you got the correct port address entered?
Please attach your xml and I will see if there is anything obvious.
Hood

Title: Re: Motors won't turn
Post by: RICH on September 20, 2008, 08:07:40 AM

DANG,
Are you sure the motors are wired correctly? They shouldn't get "hot quickly".
If you can't keep your hand on them they are at or over 140deg F.
If there is a smell present absolutely to much current to them.
Check things out since if they short you could blow a drive.
RICH

Title: Re: Motors won't turn
Post by: dang on September 20, 2008, 01:47:33 PM

Thanks for the responses.

Rich

 I thought about the wiring first. I'm no detective, but it makes sense. Hot motors with no movement. It's a 4 wire setup with 2 windings. I wired them after reviewing both the motor schematic and wiring setup in the Gecko manual. I'll have another look at it today.

Hood

I've attached my XML. Thanks, trying to read it makes my eyes wanna rotate to the back of my head.

Title: Re: Motors won't turn
Post by: Hood on September 20, 2008, 04:13:03 PM

Dang
 can you attach the actual xml rather than a text document please.
Hood

Title: Re: Motors won't turn
Post by: dang on September 20, 2008, 10:10:26 PM

Sorry, I get an error message when I try to upload my XML file or a copy thereof. I see though, that there is a Gecko mode which appears to be inactive (0). Since I have a G540, could this be the issue?

Anyway, I thought a text file would be sufficient. How do I upload this bugger? I'm checking my wiring ASAP!

Title: EUREKA! CHARGE PUMP!
Post by: dang on September 20, 2008, 10:56:19 PM

Found It!

It's a charge pump signal issue. I apparently, have a REV 1 G540. The G540 requires a 12Khz Charge Pump Signal to be present before it will allow the motors to move. The newer versions of the hardware have a button inside to turn this feature on or off. Mine doesn't. It's 1st gen.

I'm gonna look it up here, but is there a software fix for this? If so, I can hold up on shipping this G540 back for a newer replacement.

Thanks again y'all. ;D

Title: Re: Motors won't turn
Post by: dang on September 21, 2008, 01:56:46 AM

Just in case.

I read a post by Hood on how to rename the XML file and then post it. I'm lazy.

Title: FIXED!
Post by: dang on September 22, 2008, 10:19:19 PM

My problem's been fixed. I had my step and direction pins mixed up. Thanks for all the replies!