Hypertherm Powermax105 Service Manual - Manual (Page 186)

TroubleshooTing and sysTem TesTs
8-48
powermax
105 Service Manual
For operational fault codes 0-40-0 and 0-40-1 or power board faults 3-11-0 and 3-11-1 (CSA, 230-400 V CE,
380 V CCC/230-400 CE models only)
1. Remove PFC temperature sensor connector (J19) from power board.
2. Check the resistance between pins 1 and 2 on the plug. Resistance should be about 5 kΩ.
3. If the resistance is incorrect, replace the PFC IGBT module and gate drive cables.
4. If the value is correct, measure resistance between pins 1 and 2 on J19 on the power board with the temperature
sensor disconnected. The resistance should be about 4.7 kΩ.
5. If the value is correct, replace DSP board.
6. If the value is incorrect, replace power board.
PFC temperature sensor connection
J19 J20 J21 J22