Hypertherm Powermax 125 Service Manual

162 Powermax125 Service Manual 808070
8 – Troubleshooting and System Tests
Test 9 – Electronic regulator
Symptom: Air flows continuously through the torch.
1. Turn OFF the machine and disconnect the power.
2. Disconnect the electronic regulator control cable (J6) from the power board.
 If air continues to flow, replace the electronic regulator.
 If the air stops flowing, verify the DSP board by replacing it with a known good one. If the DSP board is not the
problem, replace the power board.
Figure 30
1
2
3
4
5
1 Electronic regulator (J6)
2 Pressure switch/auxiliary contactor (J5)
3 Pressure sensor (J3)
4 Inverter temperature sensor (J2)
5 Fan (J1)

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