Tweco 161 S Inverter Arc Welder - Manual (Page 54)

THERMAL ARC 161 S APPENDIX
Appendix A-4 Manual 0-5073
APPENDIX 3: SYSTEM SCHEMATIC
Art # A-09897_AC
G
D S
G
D S
PU
T
23
0V
AC
/11
5V
AC
50
/60
Hz
G
D S
AC
O UT
AC
OU
T
DC
-
DC
+
RE
D
BL
AC
K
J2-1
J2-2
J2-3
J2-4
J2-5
J2-6
J2-7
J2-8 -24V
GND
+15V
IGBT Driver A
IGBT Driver B
GND
Over Current Signal
Over Current Signal
J3-1
J3-2
J3-3
J3-4
J3-5
J3-6
J3-7
J3-8
J4
-6
J4
-5
J4
-4
J4
-3
J4
-2
J4
-1
+1
5V
PO
T W
IP
ER
Fa
ult
Pro
ce
ss
S
w
itc
h
G ND N/A
J7
-2
J7
-1 J8
-2
J8
-1
G
ND
-24
V
J7
-3
+1
5V
G
ND
RE
D
BL
AC
K
J9-2
J9-1 J1-2
J1-1
RED
J1
0-1
J1
0-2
M
ain
P
ow
er
PC
B1
Co
ntr
ol
PC
B2
Front Panel PCB3
8
1
J2
,J3
J4
,J1
1
6
1
2
1
4
1
J1
,J8
,J9
J1
0,
1
2
3
7J
6J
PC
B M
OU
NT
ED
H
AR
NE
SS
C
ON
NE
CT
OR
S P
IN
O
UT
VIE
W
ED
F
RO
M
C
OM
PO
NE
NT
S
ID
E O
F B
OA
RD
1
2
J6-1
J6-2
J6-3
J6-4
GND
+15V
-15V
Current Feedback
3J
7J
8
J
J
6
J1
J4
CO
NN
EC
TO
R
LA
YO
UT
D
IA
G
RA
M
JC
O
T
TU
O
MI
BF
I
JF
1
VR
D
O N
O
FF
FA
N
PF
C C
IR
CU
IT
SH
EE
TM
ET
A
L C
O
VE
R
M
BIN
W
VIN
RE
D
BL
AC
K
J1
1-5
J1
1-4
J1
1-3
J1
1-2 J1
1-1
ST
IC
K
LIF
T T
IG
PR
O CE
SS
S
EL
EC
TO
R
CU
RR
EN
T
CO
NT
RO
L
FA
UL
T
AC
PO
S
NE
G
+ -
BLACK
W
VIN
FJ O
T JC
M
BIN
IM
O UT
IF
B
RED
YELLOW
GRAY
WHITE
J5-1
J5-2
J5
60
W
4Ω
J5
RX
JC
IN
11
5V
AC
S
TIC
K
--1
.5V
DC
11
5V
AC
L
IF
T T
IG
-
-4.5
VD
C
23
0V
AC
--
0.5
VD
C
C1
Current Sensor
O
N