An 0-12-n fault code identifies a condition where the output gas pressure is too low,
too high, or not stable. The 0-12-n fault codes show only on a Computer Numerical Control (CNC) through an RS-485 serial interface. They do not show on the
plasma power supply 2-digit display.
Fault codes and fault LEDs
| Fault code |
Fault LEDs |
Torch LED |
Description |
Stops the system from operating? |
| 0-12-1 |
ON
|
CNC use
only |
The output gas pressure is too low. |
No |
| 0-12-2 |
The output gas pressure is too high. |
| 0-12-3 |
The output gas pressure is not stable. |
Corrective action for 0-12-0, 0-12-1, and 0-12-2 faults
-
For optimum system performance, make sure
that the inlet gas pressure stays between 7.6 bar – 8.3 bar (110 psi – 120 psi) while gas is
flowing.
Never use more than the maximum gas
pressure of 9.3 bar (135 psi).
-
Which fault code do you see?
OptionDescription
| 0-12-1 |
Increase the inlet gas pressure from the gas supply
source. |
| 0-12-2 |
Decrease the inlet gas pressure from the gas supply
source. |
| 0-12-3 |
Adjust the inlet gas pressure from the gas supply source as
necessary. |
-
Make sure that the gas lines do not have kinks, blockages, or other
damage.
-
Do a gas test to find if the plasma power supply's actual output gas
pressure is lower than the set pressure by more than an acceptable
quantity.
-
If the fault continues, examine the gas system and the solenoid valve by doing the
troubleshooting steps in Troubleshooting for low gas pressure faults.