Hypertherm Powermax 65 Service Manual

TroubleshooTing and sysTem TesTs
5-40 powermax 65/85 Service Manual
Test 2 – DC Power Buss
Resistance check
Note: All resistance values must be taken with the power cord disconnected and all internal power supply wires
attached.
• Remove the mounting screws from the bulk capacitors and pull the caps away from the power board.
• Measure resistances described in the following tables.
CSA
Test points Value
TP 10 and 12 25kΩ
TP 11 and 12 25kΩ
CE
Test points Value
TP 11 and 13 18kΩ
TP 12 and 13 18kΩ
WORK
LEAD
BLK
BLK
J13
J16J17J18J19
J26
TP12
J28
TP10
TP11
WORK
LEAD
J13
J2 J1
J18J19
J27
J30
J23
J24
TP13
J29
TP11
TP12
• Replace the bulk capacitor mounting screws before power-up.

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