Hypertherm Powermax 125 - Page 120

120 Powermax125 Service Manual 808070
8 – Troubleshooting and System Tests
Figure8–IGBT, inverter tests
Figure9–IGBT, pilot arc
Test 1 Test 2
1
2
3
4
5
6
1 Yellow lead Gate (“G2” or “6”)
2 Black lead Emitter (“E2” or “2”)
3 Red lead Collector (“C2E1” or “1”)
4 Red lead Collector (“C1” or “3”)
5 Black lead Emitter (“C2E1” or “1”)
6 Yellow lead Gate (“G1” or “4”)
1
2
3
1 Yellow lead Gate 2 (“G2” or “6”)
2 Black lead Emitter 2 (“E2” or “2”)
3 Red lead Collector 2 (“C2” or “1”)