Hitachi L300P Series Welding System User Manual


 
SJ300-015-055HF Circuit Diagram
J51
FAN
1 2 3 4 5
55 56 57 58 59 60
1
2
H I T A C H I
STR
RUN
STOP/RESE
FUNC
P
To
Ro
U
V
W
J61
Logic Board
Option Board
Option Board
OPTXC
OPT1C
OPTXC
OPT2C
1 2 3 4 5
55 56 57 58 59 60TMC
SP
SN RP SN
P24 PLC
FW 8
7
6
5
4
3
2
1
CM1
FM TH
CM1 11
12
13
14
15
CM2
H
O
OI
O2
L AM AMI
AL2
AL1
ALO
Control Terminal Board
J21
CN1
PLUG
OPEC
Digital Operator
Plug
1 2 3 4 5 28 29 30
J1
1 2 3 4 5
28 29 30
J1
Min Board
Bus Capacitor
Board
+
R
S
T
G
N
G
+
+
+
CTU
CTW
TMN
TMP
PIM
Flat cable
Fin
PD
RB