Note: Control terminal symbol is SJ300.
Option Board
Option Board
1
2
H I T A C H I
STR
RUN STOP/RESE
FUNC
Logic Board
OPTXC
OPT1C
OPTXC
OPT2C
TMC
SP SN RP SN
P24 PLC
FW 8
7
6
5
4
3
2
1
CM1
CM1 11
12
13
14
15
CM2
H
O
OI
O2
L
AM
AMI
AL2
AL1
ALO
Control Terminal Board
CN1
PLUG
OPEC
Digital
Operator
Plug
SJ300-300LF, L300P-370LFR Circuit Diagram
FAN
U
V
W
J1
J21
Main Board
+
FAN
J22
CTW
J11
J16
J52
J41
DM Board
IGBT
J31 Thermistor
Flat Cable
J52
J41
DM
RT
J32 Thermistor
FAN
J23
CTU
J71
J71
J56
J56
CT Board
J61
J53
J54
J55
Control
Power
Board R
T
J51
To
Ro
Pre Control Power Board
J65
J65
J62
J62
J64
J64
J1
+++
P
R
S
T
G
N
G
PD