Issue with CN6 of Ruida Controller RDC6445S(EC)

  1. I have 150W Chinese Laser machine, it is is fitted with Ruida RDC6445S(EC), it is double head laser machine. Head 1 is connected with CN-5 and Head 2 is connected with CN-6.
  2. I have issue since I received the machine, Head 1 is firing laser normally, but Head 2 does not fire, I have double checked all the setting in Ruida controller and RDWorks.
  3. When I pulse from the ammeter the laser head fires, but does not respond to the software (checked with both RDWorks and LightBurn).
  4. In order to check I swapped CN-6 connector with CN-5, head 2 fires normally, then using the Multimeter I checked the outputs of both CN-5 and CN-6, I figured out that the output pin L-ON2 do not goes down from 4.3 volts to low value to enable the Laser power supply, as CN-5 L-ON1 which changes from 4.3 volts to low value to enable the Laser power, both laser heads signals are selected for signal LOW.
  5. Kindly help me out to resolve the issue.