Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: Sprocketeer on July 09, 2015, 05:56:15 PM
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I am building a Momus CNC 2.1 machine and I just received a Gecko G540 Stepper Motor Kit from Automation Technology
The Kit includes:
1: 1 pcs 48V 7.3A switching power supply (110VAC/220VAC)
2: 1 pcs Gecko G540 4 axis stepper motor driver, Current Version
3: 3 pcs High-torque Nema 23 1/4" shaft 381 oz-in stepper motors. These are optimized for the G540 at 3.5A current , KL23H2100-35-4B
4: 3pcs High-performance flexible, Shielded motor cables 12 feet cables. No soldering
One side wired with BD9 connector, one side wired with motor plug
- See more at: http://www.automationtechnologiesinc.com/products-page/g540-stepper-motor-kits/3-axis-stepper-motor-cnc-router-mill-electronics-kit-gecko-g540-110vac220vac#sthash.qg7rEBWt.dpuf
I have fresh install of 32bit Windows 7 and have followed all of the documentation instructions from Gecko and Momus perfectly (I think...) The kit is basically "plug & play" so there was no soldering and resistors to install. Everything has gone exactly like it should have until I tried jogging the motors. All they will do is randomly shake and vibrate when I try to jog them. All 3 motors do the exact same thing so I am sure it is a problem with my Mach3 setup. I downloaded and installed the G540 XML into Mach3 file as well.
Here is a video of the problem I am experiencing:
https://www.youtube.com/watch?v=hAMr-3WTziA
Any ideas???
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you motor`s will need calibrated it`s in the m3 manual how to do it
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you motor`s will need calibrated it`s in the m3 manual how to do it
Thanks daniellyall!
I have looked through the manual and I can't find anything in it in regards to "Motor Calibration". Can you be a little more specific?
I used the "Motor Tuning" settings provided by the Momus instructions.
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5.5 Tuning Motors in the manual
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Well, I have been through the entire motor tuning section again and have tested all the settings. I still only get the shaking/vibration but it will start and stop slower with a change in acceleration or shake/vibrate faster or slower with a change in velocity. I have been testing only a single motor at a time. I had to leave for an hour or so to go to a meeting and when I returned, the motor was extremely hot. l left it plugged in but there was no motion.
If I unplug the parallel cable, sometimes there is an audible hum from the motor and it immediately begins to get warm when the system is powered up.
Any suggestions?
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I talked to Gecko support and I was told it sounds like the motors are not wired correctly. I purchased a pre-wired "Plug & Play" kit. I know I should have an ohmmeter but I don't.
Does this look correct to you?
(http://i62.tinypic.com/2qvxl47.jpg)
(http://i61.tinypic.com/2h35rmf.jpg)
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Based on this, it looks to be wired incorrectly...
(http://i59.tinypic.com/1z3s7xi.jpg)
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Looks like you have the red and green crossed.
The black and green are one coil, and the red and blue (now white) is the other coil.
Russ
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Looks like you have the red and green crossed.
That is what I thought! I just wanted to hear it from someone else.
This was purchased as a pre-wired "Plug & Play" Kit from Automation Technology.
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You should maybe verify it with them first to cover yer a$$, but it looks like a mistake to me. Easy mistake to make I guess ... if not tested afterwards.
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when I returned, the motor was extremely hot. l left it plugged in but there was no motion.
If I unplug the parallel cable, sometimes there is an audible hum from the motor and it immediately begins to get warm when the system is powered up.
Any suggestions?
Be sure to mention all of this to the vendor in case the 540 and/or the motors are damaged due to their (possible) mistakes.
You might be OK, but I'd expect the worst. :(
Russ
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So I rewired one of the motors and now it works perfectly. There doesn't appear to be any damage from the incorrect wiring.
I paid an extra $120 for the Pre-wired kit from Automation Technology (which seems silly now that I know how to do it) and I have requested a refund based on that fact that I have to do the wiring my self and the hours of trouble-shooting to find it.
They have been in the loop during the entire trouble-shooting process and they were the ones who pointed me to Gecko for support.
I will let you know how they respond.
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John at Automation Technology made his case and we agreed on a partial refund. I would have liked more but I'm okay with it.
Their support is lacking but I have been happy with their customer service.
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Glad you got it working and thanks for posting back with the update.
Also glad they covered "some" of their goof up.
Good help is soooo hard to find. ::)
Now, make some chips man ! :)
Regards,
Russ
:)
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Hi Sprocketeer,
I am pleased you have found the fault and a resolution to the problem.
I think this just goes to show that we can all make very basic mistakes but, as a commercial enterprise, I would have expected AT to have checked and double checked their work before sending it out.
Still, it's water under the bridge and you can now move onto completing your machine construction and making stuff. ;)
Tweakie.
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I thought I would share my progress since I got the motor issue worked out. I am sure you have all seen this 1000X but I think this is awesome!
https://www.youtube.com/watch?v=BnwyMmbv2f0