Hypertherm Powermax125 Service Manua - Manual (Page 123)

Powermax125 Service Manual 808070 123
8 – Troubleshooting and System Tests
Figure 10 – Schematic for building an IGBT tester
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1 IGBT module to be tested (inside the dashed line)
2 Collector (“C1” or “3”)
3 Emitter (“E2” or “2”)
4 Collector, Emitter (“C2E1” or “1”)
5 Gate (“G1” or “4”)
6 Emitter (“E1” or “5”)
7 Emitter (“E2” or “2”)
8 Gate (“G2” or “6”)
9 Red minigrabber test clip
10 D1 Red LED lamp (109092)
11 R3 2.0K (009036)
12 R4 2.0K (009036)
13 9 VDC battery
14 Normally open push-button switch
15 R1 3.01M (009464)
16 Black minigrabber test clip
17 Yellow minigrabber test clip