Too many people make this complicated. It is generally quite simple.
What hoses everyone up is the darn configuration. Part of that is that I’m sure these were built for the commercial industry, in China. We have substantial issues between us, just from the simple fact they read right to left has it’s issues.
One of my grbl boards (Woodpecker) has the limit switches labeled X, Y & Z, but were actually Z, Y & X.
This is just the tip of miscommunications…
If this fixed you up, mark the thread ‘solved’ (upper right reply screen…) Please put a few words in on what you did exactly to solve it… Thanks…
I’m having the same problems as the OP. Laser won’t fire with the CN5 plugged in, but will pulse with the test button when CN5 is unplugged. I’ve verified that the wiring matches LOn-1 → L and LPWM1 → IN and my water protect is working. I have laser 1 enabled. I’m using a Ruida RDC6445S and STP TR100 laser tube. Any other ideas?
LOn-1 is 4.4V regular and drops to .7V when laser is fired
LPWM1 is showing at 0V even when laser is fired…
WP1 is 24V when the chiller is off and 0V when the chiller is on
My current meter also shows at 0mA when the laser is fired.
Seems like the problem must be coming from LPWM1. Any idea why there’s no signal? My wire connections seem fine.
Check to see if there is pwm activity when the connector is unplugged… no need to have the lps powered up… Checking that the input of the lps is not holding the pwm output signal low.
Double check that you have the laser enabled in the Ruida controller… The last field under vendor in the Machine settings would be a good place to check…
Although I can’t find it now, I recall somebody had a similar problem that boiled down to the controller using the LPWM2 output, due to a mysterious configuration option.
Go through all the Machine Settings and disable everything you find even vaguely related to the second laser.
No change with the lps connector unplugged and here are my laser settings. I’ve disabled water protection for the time being just to make sure it’s not impacting it (though I’ve tried it both ways).
At the risk of sounding silly, how about just switching the connector from Laser 1 (CN5) to Laser 2 (CN6) to see what happens? You could then measure the enable & PWM signals as before to see if the controller is doing some of the right thing in the wrong place.
The Laser 1 maximum power setting of 50% seems unusually low. Is there a reason for that?
Typically, you’d have that at 100% (or 99%) and limit the maximum current using the twiddlepot in the HV power supply to the laser tube’s specification.
I tried enabling laser 2 and I still didn’t have a pwm signal on either connector I’m not sure where to go next. The controller is pretty new so I’m hoping that isn’t the issue.
I’m not sure where to go next. The controller is pretty new so I’m hoping that isn’t the issue.