Filter
Top Products
9 Preparation for Wiring and Power Supply Wiring Procedures
9.5 Examples of External Wiring [DC Power Supply Type]
137
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
1
Introduction
2
Features and
Part Names
3
Product
Introduction
4
Specifications
5
Version and
Peripheral
Devices
6
System
Configuration
7
Input/Output
Nos., Unit Nos.
8
Installation
9
Preparation and
Power Supply
Wiring
10
Input Wiring
9.5 Examples of External Wiring [DC Power Supply Type]
9.5.1 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
*2
*3
*4
*5
*6
S/S
Special
adapter
24-
24+
PL
Power supply ON
Emergency
stop
MC
MC
MC MC
Main unit
S/S
*1
*3,*4
*1,*5
5V 0V 24V
5V 0V 24V
5V 0V 24V
24-
24+
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
5V 0V 24V
5V 0V 24V
*1,*5
*1,*5
24V DC
Circuit protector
COM
24+
*2
*6
Sink and
source
input
type
Sink and
source
input
type
Power supply for loads to
be connected to PLC
output terminals
As for the details of
emergency stop
operation, see "DESIGN
PRECAUTIONS" at"
Safety Precautions" field.
Output extension
block
Special function
block
Input extension
block
Special function
block
Input extension
block
Sink and source input type
Sink input type
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.
Do not connect with [0V] and [24V] terminals.
24V DC [+] supplies power to the [S/S]
terminal at the input extension block.
In the case of the sink input type, the [S/S]
terminal is used as the [24+] terminal.
Some special function units/blocks,
special
adapters
do
not have a power supply terminal.
Do not connect with [24+] and [ · ] terminal.
Class D
grounding
(C)(B)
(D)(C)(B)(A)