Hypertherm Powermax 125 Service Manual

112 Powermax125 Service Manual 808070
8 – Troubleshooting and System Tests
Sequence of operation
Power OFF (O)
• Connect the gas supply to the gas fitting
on the power supply.
• Connect the work lead to the power
supply and workpiece.
• Connect the torch to the power supply.
• Plug in the power supply and make sure
incoming power is ON if using a
line-disconnect box.
• Set the ON/OFF switch (S1) to ON (I).
• The green power ON LED illuminates,
indicating the system is ready for
operation.
• The fault LED should be off (see
Troubleshooting guide on page 143 and
Fault codes on page 128).
• Set the mode switch to the desired mode
for cutting or gouging.
• Set the amperage adjustment knob to the
desired output current based on the
thickness of the metal to be cut.
• The gas pressure automatically adjusts for
optimal cutting based on the selected
settings.
• Position the torch over the workpiece.
• Pull the plasma start trigger on the hand
torch, or press the remote start switch for
the machine torch.
• The electronic regulator activates.
• The gas flow starts.
• The cutting arc starts.
• Drag the torch lightly across the
workpiece to make a cut.
• The workpiece drops after the cut.
• Release the plasma start trigger on the
hand torch or the remote start switch for
the machine torch.
• The arc extinguishes.
• Gas continues to flow for 30 seconds.
• The electronic regulator deactivates.
• The gas flow stops.
• Set the power switch (S1) to OFF (O).

Hypertherm Powermax 125 Specifications

General

Output Current	30-125 A
Input Power	15.2 kW
Open Circuit Voltage	300 VDC
Gas Supply	Clean, dry, oil-free air or nitrogen
Input Power Cable Length	10 ft (3 m)
Rated Output Current	125 A
Gas Type	Air or nitrogen
Cutting Capacity	1-1/4 inch (32 mm)
Pierce Capacity	1 inch (25 mm)
Input Voltage	200-600 V, 3-PH
Duty Cycle	100% @ 125 A
Certifications	CSA
Maximum Clean Cut Thickness	1-1/4 inch (32 mm)
Cooling Method	Fan-cooled
Torch Options	Hand