Thermal Arc PRO-WAVE 300 TSW, Service Manual, Page: 81 / 110

PRO-WAVE 300TSW
August 10, 2005 8-9
Connector Pin Value Description
CN2 14 2VDC as Io=100A output current detection
15 2VAC as Vo=10V output voltage detection
16 2VAC as Vo=10V output voltage detection
17 0/5V output short detection
18 0/12V torch on/off signal
19 0/12V ok to move signal
20 0/12V panel/remote select signal
21 +10V
22 0-10V external analog signal
23 0/12V water pressure signal
24 1V as Vo=10V output voltage signal
25 1V as Io=100A output current signal
26 Not used
Not used
CN3 1 +12V
2 0V GND
3 pulse of 12V peak secondary IGBT drive signal
4 pulse of 12V peak secondary IGBT drive signal
5 pulse of 12V peak secondary IGBT drive signal
6 0/12V start compensation signal
7 0V if error
over voltage error signal
CN4 1-12
CN5 1-12
CN6 1-12
CN7 1-12
CN8 1 0-5V by temp temperature signal
2 0-5V by temp temperature signal
3 0-5V by temp temperature signal
4 0-5V by temp
temperature signal
Control PCB PCB5 WK-4919 UO6
8.07 Power Supply Reference Points on PCB5 (WK-4919)
Connector Pin Value Reference Description
CN1 1 +12VDC CN1 Pin 4 Secondary Circuit Power 12VDC
CN1 2 +5VDC CN1 Pin 4 Secondary Circuit Power 5VDC
CN1 3 -12VDC CN1 Pin 4 Secondary Circuit Power Supply -12VDC
CN1 4 GND Secondary Circuit Power Supply GND.
Power Supply Voltage Reference Points on Control PCB PCB5 WK-4919 U06