Fault 1: Description of the phenomenon: After turning on the "power switch" of the plasma cutting machine host, the power indicator does not light up.
Reason analysis and solutions: 1. "Power indicator light" is broken: replace the indicator; 2. 2A fuse is broken: replace the fuse; 3. No input three-phase 380V voltage: check whether the power supply is faulty; 4. Input power supply lacks phase: Use a multimeter to check the three-phase power supply; 5. The power switch is broken: just change the switch; 6. The control board or the host is broken: check and repair.
Fault 2: Description of the phenomenon: After the input power is turned on, the fan of the plasma cutting machine does not rotate, but the power indicator light is on
Reason analysis and solutions: 1. Input three-phase power supply lacks phase: use a multimeter to check the three-phase power supply; 2. Fan blades are stuck by foreign objects: foreign objects can be removed; 3. Fan power plug is loose: reinsert it; 4. Fan Broken lead wire: overhaul; 5. Damaged fan: overhaul or replace.
Fault 3: Description of the phenomenon: After the input power is turned on, the power indicator light is on and the fan is normal, but no air flow is ejected after the "test air" switch is turned on.
Reason analysis and solutions: 1. No input compressed air: repair the air source and air supply pipeline; 2. The air filter pressure reducing valve fails, the pressure gauge indicates 0, and the "air pressure" indicator light is on: adjust the pressure of the pressure reducing valve or Replace the pressure reducing valve; 3. Damaged "test gas" switch: replace the switch; 4. Broken solenoid valve in the main engine: repair or replace; 5. Leakage or open circuit of the air supply pipeline: repair.
Fault 4: Description of the phenomenon: Turn on the "test gas" switch on the panel of the host, and there is an airflow ejected, and the torch switch is pressed, but the machine has no response
Reason analysis and solutions: 1. The plasma cutting torch switch is broken or the connection wire is broken: repair or replace; 2. The "cut" switch on the plasma cutting machine panel is broken: repair or replace; 3. The main control panel of the cutting machine is broken: repair or Change 4. The cutting machine is in the protection state due to temperature and other reasons: wait for the temperature to be normal; 5. The water circuit is not working properly, causing the water pressure to be too low. Protection: check the water circuit and the water pressure valve.
Fault 5: Phenomenon description: Contact type can cut, but non-contact type can not cut. CNC plasma cutting machine manufacturers experiment with non-transferred arc and no spark jet nozzles.
Cause analysis and solutions: 1. 15A fuse fuse core open circuit: just change; 2. Air pressure on the pressure reducing valve is too high: adjust the pressure; 3. Damaged parts in the cutting torch: check and replace; 4. The cutting torch is damp, The moisture in the compressed air is too high: dry, add a water filter; 5. The pilot arc line is open: just replace it; 6. the cutting torch is damaged: just replace it.