Power seems way too high

[Stroonzo (Jeff)]

How is Ruida controller connected to the laser PSU? CN5 is the block having the laser PSU output:

Are you connected using PWM or L-AN1? If your laser PSU is connected via PWM, then the PSU may no be converting the PWM properly. Have you made any adjustments to the frequency settings? You should confirm the frequency is set to 20kHz:

Safe Maximum PWM with CO2 Lasers

If you have a glass tube laser, you should just use the analog output of a controller for the power curve. Even if you had software or a controller that supported PPI (that’s fast switching of the laser on and off while cutting aka Pulses Per Inch), that is a hard On/Off 5v signaling to the PSU. This frequency setting you are referring to is something different and is designed not for glass tubes. It is for RF excited lasers (RF lasers). You should have it set to 20kHz and leave it. Otherwise…