Moderator: twehr
bdring wrote:No two setups are going to give the same current at 100%. Therefore controllers allow you to setup what 100% means. You determine what percent of full scale on the power supply gives you the max rated current of the tube. You then enter that into the settings for the controller. If that number is 68%, the controller will output 68% when you tell it to output full power and 34% when you ask for 50% power.
bdring wrote:I said the "controller" will output xx%. There are a lot of things that affect true laser power hitting the work piece. I was primarily addressing the issue of over driving the tube.
bdring wrote:I said the "controller" will output xx%. There are a lot of things that affect true laser power hitting the work piece. I was primarily addressing the issue of over driving the tube.
bdring wrote:I am saying the DSP controller can help you from over driving your tube.
Speedythinker wrote:To clear things up here, I used a scope observe the waveforum and played around with the frequency.
Depends on your power supply, the frequency of the PWM provides an excellence controlling on the power % even if you have 100% set on the system default.
In my case, I set PWM frequency to 50,000HZ and the otuput of the 40W PS never go beyond 18mA. Plus, it provide fine output with 95%,..90%, 85%,80%....
I won't call "danger" here. I would say "hands on"
Marco
Return to Commercial DSP CO2 Laser Engraving/ Cutter Controller
Users browsing this forum: No registered users and 9 guests