Matthew LaFrance
07-18-2022, 12:29 PM
[Issue resolved, edit is below]
Hello everyone,
I have a 30watt fiber laser purchased directly from XT Lasers and shipped from China. Had it running fine for a few years now.
Today suddenly mid engraving it stopped and displayed the following error:
"Can not find a valid lmc device!"
The computer used is the windows laptop included with the laser. The computer is not connected to the internet, and no updates have ever been performed for the EZCAD2 software or the windows install itself.
I attempted a shutdown of laser and PC, and restarted with same issue. I opened EZcad2 install from the USB dongle included and that gave one of the two following errors:
"LMC hardware version error!"
then a separate time opening the software it gave this:
"Fiber Laser: over temperature!"
The over temp is weird as the machine had been down for at least a half hour at this point and was not hot. I have had it run 12 min long program back to back for hours and never had a heat issue.
I opened device manager and confirmed that the BJZ board shows up when USB plugged in, and it doesn't show up when I unplug the wire. Its a USB male to male wire which I do not have a spare to test if somehow the wire went bad but still shows the driver when plugged in.
Any ideas of what caused this and what I can do to get it up and running? I contacted the XT laser support email and WhatsApp but with the time difference I doubt I will get a response today.
Thanks for any info or insight anyone might have!
Edit: after taking apart the machine and cleaning dust build up and checking all connection the problem went away, most likely was a loose connector. Leaving post for reference incase someone else gets same error.
Hello everyone,
I have a 30watt fiber laser purchased directly from XT Lasers and shipped from China. Had it running fine for a few years now.
Today suddenly mid engraving it stopped and displayed the following error:
"Can not find a valid lmc device!"
The computer used is the windows laptop included with the laser. The computer is not connected to the internet, and no updates have ever been performed for the EZCAD2 software or the windows install itself.
I attempted a shutdown of laser and PC, and restarted with same issue. I opened EZcad2 install from the USB dongle included and that gave one of the two following errors:
"LMC hardware version error!"
then a separate time opening the software it gave this:
"Fiber Laser: over temperature!"
The over temp is weird as the machine had been down for at least a half hour at this point and was not hot. I have had it run 12 min long program back to back for hours and never had a heat issue.
I opened device manager and confirmed that the BJZ board shows up when USB plugged in, and it doesn't show up when I unplug the wire. Its a USB male to male wire which I do not have a spare to test if somehow the wire went bad but still shows the driver when plugged in.
Any ideas of what caused this and what I can do to get it up and running? I contacted the XT laser support email and WhatsApp but with the time difference I doubt I will get a response today.
Thanks for any info or insight anyone might have!
Edit: after taking apart the machine and cleaning dust build up and checking all connection the problem went away, most likely was a loose connector. Leaving post for reference incase someone else gets same error.