Hypertherm XPR300, Инструкция по эксплуатации

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Diagnostics and Troubleshooting
8
308 809480 Instruction Manual XPR300
Gas inlet pressure codes (768 – 771)
It is necessary for the cutting system to have electric power to verify gas inlet pressures. Use
extreme caution if you do diagnosis or maintenance tasks when the plasma power supply
remains connected to electricity and the panels on the plasma power supply are removed.
Gas pressure drops are more likely to occur if the supply gas hoses are long. For the best results
position a gas regulator within 3 meters (10 feet) of the gas connect console (See
Configuration
with Core gas connect console on page 80 and Configuration with VWI or OptiMix gas connect
console on page 81.)
1. Use the CNC or XPR web interface to select Test Cutflow to start the gas flow.
2. Make sure that the gas inlet pressures are within the acceptable range ( Process gas
requirements (Core, VWI, and OptiMix gas connect consoles) on page 42).
3. If the pressure of the gas inlet is inconsistent:
a. Use a 2-stage regulator that maintains consistent gas pressure with high-pressure gas
cylinders.

Make sure that the 2-stage regulator can deliver the necessary gas
flow.
WARNING
The plasma power supply contains dangerous electric voltages that can
cause injury or death.
Even if the plasma power supply is turned OFF, you can still get a
serious electric shock if the plasma power supply remains plugged in to
an electric outlet.
Use extreme caution if you do diagnosis or maintenance tasks when the
plasma power supply remains plugged in and the panels on the plasma
power supply are removed.
When the line-disconnect switch is in the ON position, there is line
voltage at the contactor and the power distribution PCB.
Voltages present at the terminal block and contactors can cause injury
or death.
Use extreme care when you measure the primary power in these areas.