Control card A002 connectors
X3/1-2 Primary IGBT control
X4/1-2 Primary IGBT control
X5 Aux. Transformer T002 0V
X6 Aux. Transformer T002 13 Vac
X7 Aux. Transformer T002 13 Vac
X8/1 TIG ignition spark control
X8/2 13 Vac
X8/3 TIG-torch start detection
X8/4 + 24 V
X8/5 GND
X9/1-2 Solenoid valve
X9/3-4 Fan
X9/5
Secondary voltage (U2)
X9/6-7
Fan
X9/8-9
Shunt resistor R001
X9/10 Machine size (3500)
X9/12-13 Current transformer T004
X9/14 GND
X9/15 Machine size (1600/2500)
X10/1
Secondary IGBT control
X10/2
+ 5 V
X10/3
Secondary IGBT control
X10/4
- 15 V
X10/5
+ 15 V
X10/6
GND
X10/7
Set value from remote controller
X10/8
-
X10/9
TIG/MMA selection from remote controller
X10/10
AC-TIG auxiliary pulse control
X10/11
+ 24 V
X10/12
+ 15 V
X10/13
+ 15 V
X10/14
GND
X10/15
GND
X10/16
-
X11/1
Stop-command from the cooling unit
X11/2
Cooling unit control
X11/3
+ 24 V
X11/4
GND
X14/1-6
PTC-resistors
X20/2
Net overvoltage
X20/3
+ 15 V
X20/4
GND
X22
Protective earth
28