I had a Chinese Fiber laser unit for 2 years
Model: DTML-F(I)Pulsed Fiber Laser 5w-30w, IPG-YLP Control Card, EZCAD 2.5.3

After initial power-up:
I/o 4 input is on, light fires OK, but Marking is very Weak, I/o 4 input turns off.
the second try to mark Ezcad displays "IPG Laser:System Error!"

I believe either the software is not set up correctly, or the Laser Source is bad.

please guide me what is the problem and how to fix it

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