Connecting To Controller Message on Ruida HMI
You will need to know How To Use A Multimeterto facilitate this diagnostic procedure.
You will be measuring live 110vac and other voltages so care must be taken to follow all safety guidelines and best practices.
LCD panel
1. Remove the connector between the controller board and LCD panel
then turn on the laser machine, observe if the laser head will start initialize (initialization process is the laser head will go to top left corner and then go the last origin you set).
2. If the initialization process is normally, the LCD panel is faulty. Otherwise, go next.
Controller board
1. If the LCD panel is not connected, the laser machine cannot start and initialize, please check if the green lights of all drivers are on. If yes, the controller board is faulty. If not, go next.
2. If the lights of all drivers are off, please check if the light of 36V power supply is on and measure the voltage of it.
Drivers:
36V power supply:
Voltage input:
Put the black probe on the L, red probe on the N, set the multimeter to AC VOLTS. The voltage input should be 115V/220V.
Voltage output:
Put the black probe to a screw of V-, put the red probe to a screw of V+, set the multimeter to the DC gear. The voltage should be 36V.
3. If the voltage input/out is much below standard, maybe you need to replace a new 36V power supply.
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