Troubleshooting for torch-lock switch faults (0-50-n)

A 0-50-n fault code is usually an indication that the torch-lock switch is set to the yellow lock (X) position or that the system is reading data from the Hypertherm® cartridge.

Fault codes and fault LEDs

Fault code Fault LEDs Torch LED Description Stops the system from operating?
0-50-1 The image shows the Torch Fault Light Emitting Diode.

ON

 The image shows the torch Light Emitting Diode illuminated yellow.

Yellow

 The torch-lock switch is set to the yellow lock (X) position. Yes
0-50-2 The torch-lock switch is set to the green “ready to fire” position, but the torch is not prepared to fire. Yes
0-50-3 The image shows the Power ONLight Emitting Diode.

ON

The system is reading data from the Hypertherm cartridge.

If the system cannot read the data from the Hypertherm cartridge, a different fault code will show. The usual behavior when this happens is to see a 0-50-2 fault code after 0-50-3 goes away.

 Yes

Corrective action for 0-50-1 faults

  1. Hand torch:
    1. Move the torch-lock switch to the green “ready to fire” position.
    2. Fire the torch one time to get the warning puffs of air.
    3. Fire the torch again to get a plasma arc.
  2. Machine torch:
    1. Move the torch-lock switch to the green “ready to fire” position.
    2. Fire the torch to get a plasma arc.

Corrective action for 0-50-2 faults

  1. Hand torch:
    1. Fire the torch one time to get the warning puffs of air.
    2. The 0-50-2 fault code goes off, and the LED on the hand torch changes from yellow to green.

      The torch is now prepared to fire a plasma arc.

  2. Machine torch:
    1. Fire the torch to get a plasma arc.
    2. Optional:: If the 0-50-2 fault code does not go off, send a STOP signal from the Computer Numerical Control (CNC) to remove the fault.

Corrective action for 0-50-3 faults

  1. Wait for the fault code to go away on its own.
  2. If a 0-50-2 fault code shows after the 0-50-3 goes away, fire the torch one time to get the warning puffs of air.

    The 0-50-2 fault code goes away. The torch is now prepared to fire a plasma arc.

  3. Try a different Hypertherm cartridge.