If restart at power off

[Homecrafts (Andy Turner)]

I turned on my laser and started cutting, then the light that is in the laser when the light in the work area came on,first time in 2 years,but just after it came on,it stopped cutting and there was a message on Ruida saying. If restart power off.
If tried Esc. And restart etc but it’s still the same,I turned everything off left it then turned it on,but still the same.
Please van someone help, I’ve got a lot of orders for the festive season. Please.

[ednisley]

@Homecrafts

• first time in 2 years
• it stopped cutting

This seems very much like the high voltage power supply for the laser tube failed dramatically enough to glitch the low voltage supply for the controller.

Assuming the situation is:

• The controller still works: display active, keyboard works
• The machine moves correctly: you can jog it from the display buttons
• The laser tube does not produce a beam or respond to the controller Pulse button

Then the HV supply is dead.

These are readily available, but you should get it from either the original machine supplier or a reputable source, rather than the cheapest seller on eBay / Amazon.

You must match the new supply’s power rating to the old supply. For example, if you have a “60 W” machine, then you must get a “60 W” power supply, not a “50 W” or “100 W” supply.

The new supply will most likely produce different results with the same LightBurn settings, so run a few Material Tests to see if you must change the power settings.

[Homecrafts (Andy Turner)]

Hi I was using my 50W laser yesterday it was working as normal, all of a sudden the light in the cutting area came on,it hasn’t worked for 2 years,but as the light came on the laser been went off.the gantry was still moving. Then I noticed on the screen it says “If Restart at Power Of.

Then two boxes saying Esc and Enter

But none of the buttons on the controller work. I tried turning it off and leaving it,but when I turn it back on, the gantry homes,and then that message appears on the screen.and it’s not recognising the limit switch when it moves.
Could this still be the power unit blown?

can anyone help??

Please

[ednisley]

@Homecrafts

on the screen it says “If Restart at Power Of.

Searching for that phrase brings up a previous discussion here:

Bug with Z Axis moves

I have been testing the Z Axis moves with my Aeon laser and have found a bug. This has also been confirmed by a friend who has a Thunder laser and sees the same problem so it’s not specific to my laser or my brand. I’d have to find out which Ruida controller each uses. My test file is attached. I’m getting the “no enough extend space” error when it goes to move the bed for a fill. This only happens with fills and it seems to only happen with a file that contains more than one fill in it and whe…

And a description without a solution:

https://forum.laseruser.com/viewtopic.php?t=6176

@Homecrafts

when I turn it back on, the gantry homes

Because the controller attempts to home the machine and the motors move, the low voltage (probably 24 VDC) power supply is working.

@Homecrafts

• none of the buttons on the controller work
• it’s not recognising the limit switch when it moves.

The collection of symptoms suggests the HV power supply failed, perhaps by arcing to the frame and limit switch wiring, which then damaged the controller.

You can test the HV supply by unplugging the (typically green) connector with the wires from the controller, then pressing the TEST button on the supply. If the laser fires, then the supply is at least functional, although the control inputs may be damaged.

Because the controller is not responding to the buttons on its display, it’s probably damaged beyond repair.

Unfortunately, the smallest replaceable units are the controller and the HV power supply, because neither can be repaired.