Mitsubishi FX3U Series User Manual

FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
158
9 Preparation for Wiring and Power Supply Wiring Procedures
9.5 Examples of External Wiring [AC Power Supply Type]
9.5.2 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 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 units or earlier in extension
units than the main unit.
For the details, refer to "WIRING PRECAUTIONS" in
"Safety Precautions".
As for the details, see "WIRING PRECAUTIONS" at
"Safety Precautions" field.
*2 Connect the 24V terminal of the main unit or the input/
output extension 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 do not have the 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.
*5 Do not connect the 24V terminals (24V DC service power
supply) of the main unit and the input/output extension unit
with each other. Connect the 0V terminal.
*6 Some special extension units/blocks do not have power
terminals.
When using an external power supply, turn it ON at the
same time with the extension unit or earlier than the
extension 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.
Sink and source input type
Sink input type
COM
24+
*5
24V DC
service power
supply output
S/S
L
N
0V
Special adapter
24-
24+
24V
Main unit
Input extension
block
S/S
24V DC
service
power
supply
output
*5
*1
*2,3
5V 0V 24V
5V 0V 24V
5V 0V 24V
Sink and
source
input
type
24-
24+
*4
Special function
block
5V 0V 24V
S/S
L
N
0V
24V
S/S
24-
24+
24V DC
service
power
supply
output
*6
*5
*1
*2,3
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
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.
DC AC
AC power supply of
100 to 240V
Breaker
Class D
grounding
Class D
grounding
Class D
grounding
Class D
grounding
Class D
grounding

Mitsubishi FX3U Series Specifications

General

Brand	Mitsubishi
Model	FX3U Series
Category	Controller
Language	English