Hypertherm Powermax 65 Service Manual

TroubleshooTing and sysTem TesTs
5-14 powermax 65/85 Service Manual
IGBT device test using the Hypertherm tester
Using the Hypertherm IGBT tester, press and hold the switch in the desired position to perform each test described in
the following table.
Switch LED
Position Fail Pass Battery This may mean Corrective action
Left X - - IGBT is short-circuited Replace IGBT
Left - X - IGBT passed the short-circuit test None
Left - - X Battery below 8 V Replace battery
Left - - - Dead battery Replace battery
Right X - - IGBT is open Replace IGBT
Right - X - IGBT passed the open test None
Right - - X Battery below 8 V Replace battery
Right - - - Dead battery Replace battery
Troubleshoot the Hypertherm IGBT tester
1. Inspect the leads and the IGBT tester for damage.
2. Verify that the battery voltage is greater than 8 V.
3. Test the IGBT Tester, itself, as shown below. If the results do not match the table, replace the lead connections.
Connect leads Short test Open test
None Pass Fail
Red to Black Fail Pass

Hypertherm Powermax 65 Specifications

General

Open Circuit Voltage (OCV)	300 VDC
Gas Supply	Clean, dry, oil-free air or nitrogen
Maximum Cut Capacity (Mild Steel)	1" (25 mm)
Input Voltage	200-600 V, 1/3-PH, 50/60 Hz
Output Current	20 – 65 A
Duty Cycle	50% @ 65 A
Recommended Gas Inlet Flow Rate/Pressure	6.7 scfm @ 85 psi
Torch Lead Length	25 ft (7.6 m)
Maximum Cut Capacity (Aluminum)	5/8" (16 mm)
Severance Cut Capacity (Mild Steel)	1-1/4" (32 mm)
Maximum Severance Thickness	1-1/4 in (32 mm)
Gas Type	Air/Nitrogen
Torch Options	Hand Torch, Mechanized Torch