Dear Colleagues,

I have a incredible problem with Laser PS.
The Power suply is work well if use the test button and the sign terminals are not connect to controller.
It is important fact!
I wiring my Ruida 644X controller and EFR 80W Power supply with 3 wire (TTL(low), Ground, PWM)
The TTL port in the cotnroller is okay in normally it is +5V, if I push pulse button it is change to 0,26V.
The PWM port also okay, it is output is according the set power 0-5V.
The 3rd used pin is the Ground.

On the PS side situation is very interesting.
I measured the voltage each pin before I connect cable terminal from controller.
So the pins voltage in PS are:
TH:0V
TL:5V
WP:5V
G:Ground
IN:0V
+5V:5V

If I trigger the controller, the TTL sign change from 5V to 0,26V, and the PWM change from 0V to the set power parameter.
But! the PS do nothing.
The wiring is prepared according the attached pic.
I tried to another option when I connect WP to Ground directly but it is also not helped.

Thank you for your helps!
Greatings from Hungary!
Roland