ESAB fabricator 141i Service Manual page 53

2 Control PCB2
WVIN
QF/DY
GUN
IGBT OT
NTCS
GUN Header Pin
1
2
Table 6-16 GUN Header Pin Function (Connects to GUN1 header on Remote Interface PCB4)
PWM Header Pin
1
2
Table 6-17 PWM Header Pin Function (Connects to PWM header on Main PCB1)
QF/DY Header Pin
1
2
3
4
Table 6-18 QF/FJ Header Pin Function (Connects to QF/FJ header on Main PCB1)
FUNs Header Pin
1
2
Manual 0-5448
SW0
MB
WVF
FUNs CR SOURCE
Pin Function
+24V Trigger positive
Trigger Common
Pin Function
PWM Common
Motor PWM Driver signal
Pin Function
Not used
Solenoid negative (/GAS)
+24V power source for solenoid
Common of +24V power source for solenoid
Pin Function
Fan Positive
Fan negative (/FAN)
Table 6-19 FUNs Header Pin Function (connects to Fan)
6-11
ESAB FABRICATOR 141i
PWM
Vmin
Imin
Imax
+23V~25VDC (0V when
Trigger closed)
+23~25VDC@ solenoid OFF
Signal
+20V~24VDC
0v@ Fan ON, +20V~24VDC@ Fan OFF
IFB
W2
A
DRIVE
Art # A-12173
Signal
0V
Signal
0VDC
5V Vpk
Signal
n/c
0VDC@Solenoid ON,
+23V~25VDC
0V
TROUBLESHOOTING