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9 Preparation for Wiring and Power Supply Wiring Procedures
9.4 Examples of External Wiring [AC Power Supply Type]
135
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
9.4.4 An external wiring example for the extension power supply unit (sink input [-common])
This example shows a sink input wiring (-common),including the extension power supply unit. When adding
an input extension block, check the signal name on the terminal block since the sink/source type and sink
type differ from each there.
AC power supply of
100 to 240V
*1 Connect the AC power supply to the L and N terminals (in any case of 100V AC
system and 200V AC system).
Make sure that the power is turned ON at the same time in the main unit and
extension power supply units or earlier in extension power supply units than the
main unit.
As for the details, see "WIRING PRECAUTIONS" at "Safety Precautions" field.
*2 Connect the 24V terminal of the main unit to the S/S terminal of the input
extension block.
*3
In the case of the sink input type, the S/S terminal is used as the 24+ terminal.
*4
Some special function units/blocks, special adapters do not have a power
supply terminal.
When using an external power supply, turn it ON at the same
time with the main unit or earlier than the main unit.
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.
S/S
L
N
0V
Special adapter
24-
24+
Class D
grounding
PL
Power supply ON
Emergency
stop
MC
MC
MC MC
DC
power
supply
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.
24V
Main unit
Input extension
block
S/S
24V DC
service
power
supply
output
DC AC
*1
*4
Sink and source input type
*2,*3
5V0V 24V
5V0V 24V
5V0V 24V
Sink and
source
input
type
Breaker
24-
24+
*4
Special function
block
5V0V24V
L
N
S/S
*2,*3
*1
*5
Extension power supply unit
5V0V 24V
5V0V 24V
Special function
block
Input extension
block
5V0V 24V
5V0V 24V
Output extension
block
24-
24+
Sink and
source
input
type
Wiring precaution:
Grounding and power cables should be positioned
to exit the unit from above as shown in the figure.
Grounding and
power cables
Some special function blocks do not have
the power supply terminals.
When using an external power supply,
turn it ON at the same time with the
extension power supply unit or earlier
than the extension power supply unit.
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.
*5
*6
*6
*6
The "24V" and "0V" terminals are located
on the output terminal side.
For details on the terminal layout, refer to
Section 4.7.