ESAB CIGWELD WeldSkill 205AC/DC, Operating Manual

Page: 67 / 72

0-5555 A-1 APPENDIX
APPENDIX: WELDSKILL 205AC/DC CIRCUIT DIAGRAM
S1
IN
PU
T
240
VA
C
A N
N1
AC
1
AC
2
B1
DC
+
DC
-
340
VD
C
240
VA
C
J3 J4
EM
C
Fi
lte
r
V1
/V
2
So
ft Start Circui
t
J3/J
4
C1
0
C1
4
C1
5
C1
6
C1
7
R1
4
R1
7
G1
E1
+
PO
SITI
VE
340
VD
C
J5
Q1
/Q
2/Q3/Q
4
C2
R1
5
C5
R1
4
C1
3
R3
7
C1
4
R3
6
Q5
/Q
6/Q7/Q
8
Q14/
Q1
5/Q
16/Q1
7
Q10/
Q1
1/Q
12/Q1
3
L1
J3/J
4
Q1
C1 R7
/R
11
G4
E4
Q2
C2
R9
/R
12
G3
E3
Q7
C1
9
R2
7/R2
9
G2
E2
Q8
C2
0
R2
8/R3
0
Sa
mp
le
Fe
edbac
k
M1
Au
xi
liary Power S
upp
ly
DC
Po
we
r In
pu
t
E2
E4
G2
G4
E3
G3
E1
G1
Dr
iv
in
g
Circui
t
Driv
in
g
Si
gn
al
Driv
in
g
Si
gn
al
Timi
ng
Co
nt
ro
l Inte
rface Ci
rcui
t
Hi
gh
Fr
eq
ue
ncy Circ
ui
t
8
1
7
3 4 5
9
2
T1
0V
P3 P6
D1
/D
2/
D4
C8
/C
9
R1
/R
3
D7/
D8
/D
10
C2
1/C22
R1
51
/R
15
2
C7
C8 C9
J1
J2
-
NE
GA
TI
VE
Ha
ll
Ou
tp
ut
Cu
rren
t Fe
edbac
k
1 2 3
CN
1
T.r2
R1
9 7 5 3 1 8 6 4 2
11 10 13 12 14
CN
3
9 7 5 3 1 8 6 4 2 11 10 13 12 14
CN
1
1 2 20 19
JP
2
1 2
20 19
JP
1
Timi
ng
Co
nt
rol
Circui
t
Co
nt
ro
lB
oa
rd
9
7
5
3
1
8
6
4
2
11
10
13
12
14
CN
2
9
7
5
3
1
8
6
4
2
11
10
13
12
14
CN
1
DS
1
LE
D1
LE
D3
4
Ab
sorp
tion Ci
rcui
t
CN
1
12
CN
7
12
1 2
CN
8
CN
4
12
CN
2
12
3
1 2
CN
5
1 2 3
CN
5
Ab
so
rp
tion
PC
B
CN
2
12
CN
3
12
CN6
12
3
CN4
3
2
1
CN
6
3
2
1
CN
1
12
CN
3
3
2
1
12
H1
VR
1
1 2 3 4
P2
+ - M 0
Re
d
Wh
it
e
Gr
een
Bl
ac
k
FA
N
T.r1
Q1
K1
/K
2/
K3
/K
4
1
2
3 4 5
A B
CO
M
K5
Se
condary
In
ve
rter
PC
B
Di
sp
la
yP
CB
Pr
im
ar
y
In
ve
rter
PC
B
S1
:P
ow
er
Sw
itch
B1
:
Recti
fier
R14/R17:
Discharge
Resisto
r
FA
N:
DC
Fa
n
T.r1
:I
GB
TT
he
rm
ostat
T1
:M
ai
nT
rans
fo
rm
er
M1
:C
urrent
Tran
sf
orme
r
Q1/Q2/Q7/Q8
:I
GB
T
N1:
Fi
lter
In
du
ct
an
ce
V1
/V2/J3/J4:
So
ft
St
art
Circuit
Q1
:M
ag
ne
ticV
alve
H1:
Av
atio
nS
ocket
VR1:
Rem
ot
eC
urrent
CN
4
12
CN
5
12
CN2
12
C1/R7/R11:
Q1
RC
Ab
sorp
tion
C2/R9/R12:
Q2
RC
Ab
sorp
tion
C19/R27/R29:
Q3
RC
Ab
sorpti
on
C20/R28/R30:
Q4
RC
Ab
sorpti
on
D1/D2/D4/D7/D8/D10
:F
RD
C8/C9/R1/R3
:F
RD
RC
Ab
sorpt
ion
C21/C22/R151/R152:
FR
DR
CA
bs
orpt
ion
C10/C14/C15/C16/C17:
DC
Fi
lter
Capacit
or
Q1-Q17
:M
OS
FE
T
C2/R15:
Q1
-Q
4R
CA
bs
orpt
ion
C5/R14:
Q5
-Q
8R
CA
bs
orpt
ion
C13/R37:
Q14-Q1
7R
CA
bs
orpt
io
n
C14/R36:
Q10-Q1
3R
CA
bs
orpt
io
n
C7/C8/C9:
PCBA Filter
Hal
l:
Hal
lS
en
sor
L1
:C
ou
pl
er
T.r2
:M
OS
FE
TT
he
rm
ostat
R1:
Al
um
in
um
Ho
using
Resisto
r
K5
:E
ncod
er
K1
/K2/
K3
/K4:
Tact
Sw
itch
DS1:
Digita
lM
eter
Art# A-13996