I replaced S9 with S30 according to the Sculpfun instructions. I replaced the motherboard, cabling and head. Immediately after that, I started the computer, lightburn (I currently have the latest version of the program). The laser worked properly and performed the test work. After finishing the washing, I turned off the equipment. After turning the equipment on again after a few days, the head made a short movement in the Y axis and stopped giving the following message:
ALARM:8
Return to starting position failed. The cycle did not clear the limit switch when starting. Try increasing the pulse setting or check the wiring.
I checked the end stop, the wiring is OK. I don’t find anything damaged. The problem still exists today. The head does not move to the 0, 0 point. The mentioned message keeps showing up. I also changed the $27 setting with no result.
Usually, you need to set $5=1. You can check by sending “?” in the console window. If you get a “Pn:XY” section somewhere, the switches are recognized as pressed all the time. Check here for details: Limit Switches - Diode Laser Wiki
$25 looks wrong to me. Should be a fairly low value in units of mm/min. Single comma. I’m not sure how LB interpets commas used as decimals, but having two would seem to be confusing as a mere human.
Good catch, that one looks weird. Though it might be LB that formatted the output. But if not, it could be treated as 1.5 mm/min which is extremely slow.
To be sure, send $25=1500 in console window.
Hello.
It took some time and I finally found the solution in one of the posts. Virtually everything came down to changes in a few settings:
$3=4
$5=1
$10=1
$20=1
$23=7
$24=200
$25=3000
$27=2
$112=500
After these changes, the Sculpfun S30 laser engraver moved to zero points and started working repeatably and without interruptions. The previous settings from Skulpfun S9 are not suitable for the S30.
Thank you all for your help. I consider the topic closed.
