Troubleshooting for Fault Codes
48 810430 Troubleshooting Guide Powermax65/85/105 SYNC
0-21-0
Yellow
Yellow
The gas flow stopped during
cutting (an excessive change
to arc voltage occurred).
This fault code stops the system from operating.
The fault code goes away the next time that you
fire the torch unless there is a condition that
prevents the torch from firing, such as a kink or
blockage in the torch lead. Do the following.
The DSP PCB monitors the nozzle-to-electrode
voltage. If it finds a rapid change in that voltage,
the inverter stops. Usually this identifies a rapid
loss of gas pressure from a kinked or blocked
gas supply line.
• Make sure that the correct gas inlet
pressure is available.
• Make sure that none of the gas lines are
kinked or blocked.
• Make sure that the torch lead is not leaking.
Also make sure that it is not kinked or
twisted.
• Install a new Hypertherm cartridge.
• For mechanized applications, lock out the
torch height control.
• Make sure that gas flows through the
solenoid valve electronic regulator in gas
test mode. Replace the solenoid valve
assembly if necessary.
• The DSP PCB or the power PCB are
possibly defective.
•Do Test 9 – Solenoid valve electronic
regulator on page 112.
0-22-0
Yellow
Yellow
There is no gas supply input. This fault code stops the system from operating.
The fault code goes away when you connect the
gas supply to the plasma power supply unless
there is a blockage in the gas line. Do the
following.
• Make sure that the input gas supply is
connected correctly to the plasma power
supply.
• Examine all the connections for the input
gas supply. Make sure that there are no
blockages in the gas line. Make sure that
there are no leaks or loose connections.
• Restart the plasma power supply.
• Make sure that the input gas supply is
connected to the plasma power supply, and
do Test 10 – Solenoid valve pressure
sensor on page 115.
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