ESAB FABRICATOR 211i
TROUBLESHOOTING 5-14 Manual 0-5450
PFC Header Pin
Pin function
Signal
1
5V
+5 VDC
2
PFC OK signal, 1= PFC OK
Table 5-35 PFC Header pin function (connects to JC header on Power PCB)
QF/DY Header Pin
Pin function
Signal
1
+24V (VRD positive)
24 VDC
2
Solenoid negative
0 VDC
3
+24V (solenoid positive)
24 VDC
4
0V
0 VDC
Table 5-36 QF/FJ Header pin function (Connects to QF/FJ header on Power PCB)
FUNs Header Pin
Pin function
Signal
1
24VDC
+24 VDC
2
3
Fan control signal, 0V = Fan ON
Table 5-37 FUNs Header pin function (not used)
DRIVE Header Pin
Pin function
Signal
1
+15V
15 VDC
2
IGBT 1 pwm drive signal, 15V p-p square wave
15 VDC pk
3
IGBT 2 pwm drive signal, 15V p-p square wave
15 VDC pk
4
IGBT 2 pwm drive signal, 15V p-p square wave
15 VDC pk
5
IGBT 1 pwm drive signal, 15V p-p square wave
15 VDC pk
6
Rectified secondary of current transformer TR8
15 VDC pk
7
0V
0 VDC
Table 5-38 DRIVE Header pin function (connects to IN header on Power PCB)
WVIN Header Pin
Pin function
Signal
1
Positive welding terminal
positive VDC
2
No connection
n/c
3
Negative welding terminal
0 VDC
Table 5-39 WVIN Header pin function
IFB Header Pin
Pin function
Signal
1
+15V
15 VDC
2
-15V
-15 VDC
3
Current sensor signal
4
0V
0 VDC
Table 5-40 IFB Header pin function (Connects to welding output current sensor)
SOURCE Header Pin
Pin function
Signal
1
+24V
24 VDC
2
0V
0 VDC
3
-24V
-24 VDC
Table 5-41 SOURCE Header pin function (connects to DY2 header on control PCB)
