Hypertherm Powermax 85 Service Manual

TroubleshooTing and sysTem TesTs
5-52 powermax 65/85 Service Manual
Test 9 – Electronic regulator
Symptom: Air flows continuously through the torch.
1. Turn off the machine and disconnect power.
2. Disconnect the electronic regulator control cable (J4 for CSA, J6 for CE) 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.
Pressure sensor
J5 (CSA), J7 (CE)
Fan
J3 (CSA), J5 (CE)
Electronic regulator
J4 (CSA), J6 (CE)
Inverter temperature sensor
J2 (CSA), J4 (CE)

Hypertherm Powermax 85 Specifications

General

Gas Supply	Clean, dry, oil-free air or nitrogen
Cooling Method	Fan-cooled
Input Voltage	200-600V, 3-phase
Current Output	25-85 A
Duty Cycle	60% @ 85 A
Recommended Gas Inlet Flow Rate/Pressure	6.7 scfm @ 85 psi
Cutting Capacity (Recommended)	1" (25 mm)
Gas Type	Air/Nitrogen