FX
3U
Series Programmable Controllers
User’s Manual - Hardware Edition
183
9 Preparation for Wiring and Power Supply Wiring Procedures
9.6 Examples of External Wiring [DC Power Supply/DC Input Type]
1
Introducti
on
2
Features
and
Par
t Names
3
Product
Introduc
tion
4
Sp
eci
fic
ati
ons
5
V
ers
ion and
Peri
ph
er
al
D
evices
6
S
yst
em
C
onfi
guration
7
Input/Ou
tput
No
s., Un
it No
s.
8
Inst
allati
on
9
Prep
arati
on an
d
Pow
er Supp
ly
Wi
rin
g
10
Input W
iring
9.6
Examples of External Wiring [DC Power Supply/DC Input Type]
9.6.1
Example of sink input [-common] wiring
An example of sink input [-common] wiring is given below. When connecting input/output powered extension
units/blocks, carefully check the signal names on the terminal block because the sink and source input type
units/blocks and the sink input type units/blocks vary in signal names on the terminal block.
*1
Connect DC power to [+] and [-] terminals. The same power source for the
main unit, extension units, special function unit/blocks and special adapters
is preferable. When using the different power source from the main unit,
turn ON the peripheral devices' power simultaneously, or earlier than the
main unit's. When turning OFF the power, confirm the safety of the system and
then turn OFF the power of the PLC (including special extension equipment)
at the same time.
*2
Do not connect with [0V] and [24V] terminals.
*3
24V DC [+] supplies power to the [S/S]
terminal at the input extension block.
*4
In case of the sink input type, the [S/S]
terminal is used as the [24+] terminal.
*5
Some special function units/blocks do not
have a power supply terminal.
*6
Do not connect with [24+] and [ · ] terminals.
S/S
(0V)
Special
adapter
24-
24+
PL
Power supply ON
Emergency
stop
MC
MC
MC
MC
Power supply for loads to
be connected to PLC
output terminals
As for details on emergency
stop operation, see "DESIGN
PRECAUTIONS" at "Safety
Precautions" field.
(24V)
Main unit
Input extension
block
S/S
*1
*1
Sink and source input type
*3, 4
5V 0V 24V
5V 0V 24V
5V 0V 24V
Sink and
source
input
type
24-
24+
Special function
block
5V 0V 24V
S/S
0V
24V
S/S
24-
24+
*1
*3, 4
Input/output powered extension unit
5V 0V 24V
5V 0V 24V
Input extension
block
Special function
block
5V 0V 24V
5V 0V 24V
Output extension
block
Sink and
source
input
type
*1, 5
*1, 5
24V DC
Circuit Protector
Sink input type
COM
24+
*2
*2
*6
Class D
grounding
(A) (B)
(A) (B)
Summary of Contents for FX2-16E series
Page 2: ......
Page 8: ... 6 Safety Precautions Read these precautions before use MEMO ...
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