ESAB CIGWELD 220i, Operating Manual, Page: 89 / 94

i
2
2
0
m
ig
O
P
E
R
A
T
IN
G
MANU
A
L
A
SW1
N
POSITIVE
EMC
FILTER
CY1
J1
R2
3R 40W
POSITIVE
L4
INPUT
RECTIFIER
V7
R39
V8
C20
C17 C23
Q1
T1
CT1
Q2
R100, 102
C100
T14
T18
COUT1
POSITIVE
E
NEGATIVE
NEGATIVE
R56 C21
C19
C22
R101, 103
C101
COUT2
HALL EFFECT
CT2
L1
FJ IN DY2 QF/FJ PWM JC CON3
NEGATIVE
MD
MT-IN
WIREDRIVE
MOTOR
24VDC FAN
SOLENOID
TH1
MAIN CONTROL BOARD
SPOOL GUN BOARD
CB?
SW3
MOTOR CIRCUIT
BREAKER
SPOOL GUN
SWITCH
TH2
SW2
REMOTE
SWITCH
BURNBACK
TORCH TRIGGER
WELD NEGATIVE
WELD POSITIVE
DISPLAY BOARD
8 PIN REMOTE
SGM 15V
IFB
R
-G
G
UN
G
UN
G
UN1
J
12
MB
CR
R
E
MO
T
E
15V SGM
PP
DY
1
F
US
E
FUNs PFC PWM QF/DY SOURCE DRIVE
WV
APPENDI
X:
T
RA
NSM
IG
2
2
0
i C
IR
CUI
T
DI
AG
RAM
O
T2
O
T1
W
E
L
DI
NG
T
E
RM
INAL
S
A
rt
#
A
-1
04
37
M
anual
0
-54
39
A
-1
APPEN
D
IX