Hypertherm Powermax 65 Service Manual

TroubleshooTing and sysTem TesTs
powermax 65/85 Service Manual 5-55
Test 12 – AUX switch
Symptom: The display goes blank after “Hypertherm” appears. (CSA units only).
1. Turn the machine off and disconnect the power.
2. Disconnect the auxiliary switch cable from J1 on the power board.
3. Measure the resistance on the cable plug between Pin 4 and Pin 5.
4. If the power switch is closed (ON) there should be very low resistance.
5. If the power switch is open (OFF) there should be very high resistance.
6. If the resistance measurement doesn’t agree, check the cable, plug, and switch for opens or shorts.

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