Hypertherm Powermax45 Service Manual - Manual (Page 86)

TroubleshooTing and sysTem TesTs
5-10
powermax
45 Service Manual
TP17
W
+ - + -
TP18
B
TP16
R
~280 VDC ~280 VDC
480 V CSA power supply overview
Power switch (S1)
Power board (PCB2)
Control board (PCB1)
Flyback circuit
PE (ground)
Output diode and pilot arc
IGBT module (D40)
Inverter IGBT (Q2)
Work lead connection (J21)
Power board
Input diode bridge
(D48)
Test points