Board: laserboard replacing an arduino + ramps that replaced a moshi board
Firmware: “I have a new board and I’m using whatever it came with”
Problem/ Question: Just got my new laser board in the mail and I am trying to install it. I got the stepper and endstops connections figured out but I am confused about the laser fire/PWM connection. This is the PSU I have - http://www.everythinglasers.com/wp-content/sp-resources/forum-image-uploads/scottmarshall/2016/11/WhitePSU-pinout.JPG
The moshi board I had took (other than steppers and endstops) 3 wires - 24V in, GND, and laser fire (not PWM). The arduino setup that I replaced moshi with connected to both laser fire and laser PWM.
From the limited laserboard documentation, it is not clear to me where to connect the two PWM pins (the top of the two marked not used). The documentation suggests to connect it to laser fire, but shouldn’t the bottom pin simply go to the 0-5v IN terminal on the PSU? Where does the board draw the 5V from in order to feed the 5V in? A schematic of the board might be helpful…