X Motor Alarm Help

I think checking the continuity of the DIR signals would be next step.
Are you able to do that with your multimeter?

My multimeter wires arent long enough. I’m going to see if i can get something with longer wires.

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I might also suggest that when you test the wire run between controller and motor DIR+/- terminals, you do so by disconnecting each (+/-) at these points, just in case the two circuits are connected internally.

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So I checked all wires and the highest resistance I saw was 0.04 on a yellow wire that is the first motor wire on the left. Everything else sits 0.02 and below.

Based on testing I think my motors are good and wiring seems to check out. The machine ran great for the first 3 days but midway through surfacing it thew the x axis error and has been confused since.

Any other ideas to try?

And just to confirm you unscrewed the DIR+ and - at both ends to do the testing correct?

You might test the output voltage at the controller to make sure the X axis DIR+ is providing the correct voltage to the motor.

Also, when powered off, are you able to turn the X axis ball screw by hand to move the Z axis assembly in both directions.

Yep,
I the Onfinity team thinks its likely the motor driver so they’re going to send out a replacement to try. Ill report back when we know for sure.

That is odd, but good news wrt a replacement. From my understanding, the differential signal from the controller would have been hard to confirm unless you had an oscilloscope.

Not sure how far you dug into the Masso documentation but there are test step/dir capabilities that can be performed with a multimeter on the G3.

https://docs.masso.com.au/getting-started-guides/troubleshooting-guides/axis_testing

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I hadnt discovered this document. Great find!

Quick note, my Elite doesnt have those options. I think that may be in beta tessting.

I don’t have it either on my G3, interesting they’d make a doc about it without the feature. I didn’t think to check it out before posting the link, sorry about that.

I remember seeing the little red triangle/! warning in the doc…

INFORMATION: This Test feature is for the MASSO G3 and MASSO Touch. It has not yet been released

It has not happened often in the docs that I have noticed over the last few years.

I haven’t been able to home my Elite Journeyman, since I got it set-up on April 14th. Determined that the Z axis never moved and customer service sent me a new motor as I had asked. Luckily they also sent me a new cable as the issue turned out to be a bad connector. I though the connector looked a little unusual with two plastic prongs sticking out of it - but didn’t realize it was broken until I examined the new cable.

Well after routing the new cable through the drag chain and connecting it - I no longer had issues with the Z axis. But issues with the X Axis Alarm were also a problem. Thought I would try using the new motor to replace the one on my X Axis as motor replacement is relatively easy. WRONG - not with my X Axis motor. The two bolts on the left as you face the motor came out easy. Just had to put an 8mm wrench on the nut and back them out. They are black bolts. I took the nuts off the the chrome finished bolts on the right and they will not budge - even when I put the bolts back on at the end and tapped them with a hammer. My X Axis motor appears older than my replacement motor and I’m wondering why the bolts on the right, which will turn eighter clockwise or counterclockwise and not move forward or backward got caught in the aluminum block so that I haven’t been able to remove them.

So far, I spent hours with the machine and haven’t even gotten it to home. I’m hoping buying an early Elite won’t prove to be a big mistake as it currently appears to be.

Take a picture of the bolts you are referring to. If this is the X axis then the silver bolts need TWO nuts removed. There is a visible silver nut and there is also a second nut that is covered by the drag chain mount.

So, remove the two silver nuts (on the side with silver bolts) then unscrew the two hexagonal screws (allen key type) that hold the drag chain channel in place. Then lower the drag chain ‘tray/channel’ and slide the plastic piece that held it off the end of the bolts and you will see silver nuts inside that you can then remove and pull the bolts out.

I will be reassembling mine later today and will try and take some pictures (in reverse) as I reassemble it

Here’s some pics





Thank you so much! Five minutes after I read your very detailed response telling me there was a second set of nuts to undo under that drag chain bracket - the motor was off.

Hopefully, the replacement will solve my X-axis problem.

Thanks again.

Lon

Still can’t home the machine. But the change-out of the X drive motor now gives me a green light on the new motor. And I can jog the machine on all axes. Still get an X axis error on homing. It seems the X axis sensors don’t know where it is. I believe it gets too close on the low end and stops around 40 inches on the high end.

Did you check the state of the homing sensor for that axis in the F1 page, when I got my Elite the X axis was set to high and I got the same error.
Pat

Yes. I’m constantly scrolling down the F1 page and if the X axis sensor or any other axes sensors say high indicates high - I will hit the space bar and reset it.

Thanks.

Lon