4 WIRING
4-6
4.3 Ground
Wiring
When running ground-wiring, satisfy the following requirements:
z
Each of the LG (line ground) terminals of a programmable controller is a ground terminal to
isolate power supply noise, and each of the FG (frame ground) terminals is a ground terminal
to isolate network line noise. All of the LG terminals must be grounded separately from the
FG terminals, in order to prevent electromagnetic interference between power supply and
network lines.
z
The FG terminal of any module requiring FG grounding must be connected, via the shorted
possible route, to the FG terminal of the mount base on which the module is mounted.
z
The FG terminal of any mount base must be insulated from the cubicle in which the mount
base is installed, and must be grounded by Class D grounding (grounding resistance of 100
ohms or less).
Example: Ground-wiring for the cubicle in a concentrated installation
In cases where an LPU or CPU unit is mounted with an I/O unit in the same cubicle, the FG
and SHD terminals of the LPU/CPU unit and remote I/O station module, respectively, must
be connected to the FG terminals of the mount bases on which they are mounted. Further,
the FG terminals of those mount bases must be grounded at the same point. The reason for
this is to provide the same ground potential for both FG terminals and thereby increase
noise resistance.
Figure 4-5 An Example of Ground-Wiring in a Concentrated Installation
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
10
LWV450
P.SUPPLY
HITACHI
POWER ON
DC12V
CHECK
DC5V
CHECK
H
AC100V
IN
N
LG
FG
GND
LWO400 DO
A1
A2
A3
A4
A5
A6
A7
A8
A9
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
B1
B2
B3
B4
B5
B6
B7
B8
B9
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
HITACHI
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
A
B
D.OUTPUT
AC100-200V
LWO400 DO
A1
A2
A3
A4
A5
A6
A7
A8
A9
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
B1
B2
B3
B4
B5
B6
B7
B8
B9
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
HITACHI
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
A
B
D.OUTPUT
AC100-200V
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
10
A
B
LWS410
E.STATION
HITACHI
SHD
A
B
SHD
RI/O
IN
RI/O
OUT
TA
TB
S0
C0
S2
C2
S3
C3
S4
C4
FIX
OUTPUT
HOLD
S1
C1
128P
64P
32P
TERM
U
STNO
L
RI/O
SHD
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
F
A1
A2
A3
A4
A5
A6
A7
A8
A9
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
B1
B2
B3
B4
B5
B6
B7
B8
B9
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
HITACHI
LWI400 DI
D.INPUT
DC12
㨪
24V
A
B
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
F
A1
A2
A3
A4
A5
A6
A7
A8
A9
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
B1
B2
B3
B4
B5
B6
B7
B8
B9
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
HITACHI
LWI400 DI
D.INPUT
DC12
㨪
24V
A
B
LQX100
0
1
2
3
D.INPUT
4
5
6
7
8
9
A
B
C
D
E
F
100-120VAC
LQV000
PS
POWER
DC5V
GND
SERVICE
CHECK
ON
OFF
POWER
H
N
LG
FG
AC100-120V
INPUT
LQP510
LPU
HITACHI
RUN
PROT
SIMU
ALARM
USER
ERR
TOOL
(RS-232C)
UP LINK
(RS-422)
LADDER
RUN
STOP
RESET
ON
OFF
T/M
RI/O
STOP
STOP
/RUN
COM
SHD
150
ޓǡ
100
ޓǡ
RI/
01A
RI/
01B
SHD
PCs
OK
COM
SHD
150
ޓǡ
100
ޓǡ
RI/
02A
RI/
02B
SHD
FG
S10V
LQX100
0
1
2
3
D.INPUT
4
5
6
7
8
9
A
B
C
D
E
F
100-120VAC
LQX100
0
1
2
3
D.INPUT
4
5
6
7
8
9
A
B
C
D
E
F
100-120VAC
LQX100
0
1
2
3
D.INPUT
4
5
6
7
8
9
A
B
C
D
E
F
100-120VAC
A1
A2
A3
A4
A5
A6
A7
A8
A9
B1
B2
B3
B4
B5
B6
B7
B8
B9
C0
4
5
6
7
0
1
2
3
C1
8
9
A
B
C
D
E
F
RI/O
U
FG
I
O
A1
A2
A3
A4
A5
A6
A7
A8
A9
B1
B2
B3
B4
B5
B6
B7
B8
B9
C0
4
5
6
7
0
1
2
3
C1
8
9
A
B
C
D
E
F
A1
A2
A3
A4
A5
A6
A7
A8
A9
B1
B2
B3
B4
B5
B6
B7
B8
B9
C0
4
5
6
7
0
1
2
3
C1
8
9
A
B
C
D
E
F
A1
A2
A3
A4
A5
A6
A7
A8
A9
B1
B2
B3
B4
B5
B6
B7
B8
B9
C0
4
5
6
7
0
1
2
3
C1
8
9
A
B
C
D
E
F
C0
0
1
2
3
4
5
6
7
C1
C2
8
9
A
B
C
D
E
F
C3
C0
0
1
2
3
4
5
6
7
C1
C2
8
9
A
B
C
D
E
F
C3
A
B
C0
0
1
2
3
4
5
6
7
C1
C2
8
9
A
B
C
D
E
F
C3
C0
0
1
2
3
4
5
6
7
C1
C2
8
9
A
B
C
D
E
F
C3
A
B
C0
0
1
2
3
4
5
6
7
C1
C2
8
9
A
B
C
D
E
F
C3
C0
0
1
2
3
4
5
6
7
C1
C2
8
9
A
B
C
D
E
F
C3
A
B
C0
0
1
2
3
4
5
6
7
C1
C2
8
9
A
B
C
D
E
F
C3
C0
0
1
2
3
4
5
6
7
C1
C2
8
9
A
B
C
D
E
F
C3
A
B
TB
(collecting
LG wires)
TB
(collecting
FG wires)
LG
PS LPU
I/O
I/O
I/O
I/O
Sizes of FG/LG cable:
In cubicle: 2 mm
2
or more
Outside of cubicle: 5.5 mm
2
or more
FG
Leave this power supply module’s
FG terminal unwired.
Содержание HSC-2100
Страница 1: ......
Страница 2: ......
Страница 24: ...1 GENERAL INFORMATION ...
Страница 38: ...2 SPECIFICATIONS OF INDIVIDUAL MODULES ...
Страница 78: ...3 INSTALLATION AND MODULE MOUNTING ...
Страница 92: ...4 WIRING ...
Страница 101: ...This Page Intentionally Left Blank ...
Страница 102: ...5 MAKING USE OF MODULES ...
Страница 150: ...6 MAINTENANCE ...
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Страница 164: ...7 APPENDIX ...
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