Dear Mr.Loc
How are you?
60W new laser tube max current is less than 25mA(22-25mA), usually about 22.5-23.5, after 6 months , 21-24mA, 1 year less than 21-23mA 18 months less than 19-23mA.
As your data 22mA is normal in laser tube test, but
If new laser tube 22 mA is a little low, and after one year still 22mA, is good if still 22mA, because this data no power decrease.
Don't change low to high, most chinese laser machine use low voltage and singal out.
step as below has some safety risk, please must pay attention!!!
please check picture 001, if your laser power supply is same picturE of 001,
Use a cable, connect L and GND directly(short connect), this step means, skip control system, use laser power control laser tube directly. the laser tube should strong and continue laser out, please check the current how much???, this mode, means use 120% power of power supply to laser tube.
Don't test in this model more than 10 seconds, because strong laser may make laser tube working life shorter.
Please check picture, I make L and GND connect directly.
If in this mode, current much higher than the normal work, the signal from control board may has some mistake, if about same current, that means no matter with control system.
Waiting for your kind reply.
Br
Jacky"