Hypertherm Powermax 125 Service Manual

142 Powermax125 Service Manual 808070
8 – Troubleshooting and System Tests
Torch-related faults – continuity check
Check for continuity between the following points:

If there is no continuity between any 2 test points, replace the torch FastConnect
receptacle.
3-51-1 Inverter saturation fault (the
inverter is over current)
On On
Upper and lower inverter IGBTs are being
activated in phase rather than 180° out of
phase.
• Test the 2 inverter IGBTs in the
module.
•Perform Test 3 – Output diodes on
page 154.
• Replace the module if either is faulty.
• If necessary, replace the power board.
3-52-0 Shoot through
3-60-0 Power board
On On
The DSP does not recognize the power
board. The code is for future machines
where the current DSP board will not
work with future power boards.
3-70-0 Internal serial
communications fault
There is a fault with the communication
between the DSP and power board.
• Check the board connector.
• If necessary, replace either the DSP or
power board.
Torch FastConnect receptacle J17 on the power board
51
72
63
84
95
10 6
11 7
12 8
3-nn-n
Fault
code
Description
Power
LED
Fault
LED
Fault
icon
Solutions

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