Hi,
great community here!
We have a new Wisely machine with JPT 60W MOPA laser. Using EZCAD I can see in the JPT software that it draws approx. 13A of power at 24V and also the output looks like 100% power.
If I change the driver to the Lightburn driver and running the machine at the same parameters like tested in EZCAD the current draw is approx. 6A.
The controller card in the machine looks like this one:
Any idea, why it’s running only half power?
Thanks,
Stephan
Hello Stephan,
This seems to be an interesting case to also follow via support@lightburnsoftware.com
Have you imported the markcfg7 correctly?
Post a couple screenshots of your Edit > Device settings (all 3 tabs please)
I have attached the 3 screens from the machine settings. The EZCAD markcfg7 has been imported and the cor file has also been added.
And also attached the markcfg7 file.
markcfg7.markcfg7 (10,3 KB)
Fiber type choose: JPT
Was thinking that, strangely enough the config file states
[LMC_CFG]
CFGSIZE=12824
LASERTYPE=3
Thanks!
I have tried the suggest change to JPT-Laser but it doesn’t change anything. Still the same ouput power.
try to create everything manually without using the settings from the EZCAD
Thanks!
I created a new machine manual. Only thing I setup was the working area. All other settings I used the standard settings. Still the same. The power is 50% of the expected value. Really makes me crazy 
I have found a newer Version of the JPT monitoring tool and found the reason for the lower power draw. The power itself is controlled correctly using Lightburn but the frequency of the laser is always 20 kHz. EZCAD controls it correctly and the JPT software shows it during engraving. Using Lightburn it’s not controlled.
Due the lower frequency the current draw is lower. I assume that Q-switch time is also not controlled correctly.
Any idea about this?
Ok. I’m closer to the problem and fixed it for me.
It looks like the PWM output doesn’t work at Lightburn as long there is no material database available. After adding a material database the fill dialog changed with also an option for flood fill. I have tried again with this option and now anything works as expected. Also if the flood option is not used now anything works as it should.
Attached a picture of the changed dialog the old version is shown in the previous post. Maybe someone of the Moderators can confirm.
It’s really strange to me. I found another user who solved this using the flood fill option. Again: After adding material database and using the option it looks like it now works all the time perfectly.
