FX
3U
Series Programmable Controllers
User’s Manual - Hardware Edition
184
9 Preparation for Wiring and Power Supply Wiring Procedures
9.6 Examples of External Wiring [DC Power Supply/DC Input Type]
9.6.2
Example of source input [+common] wiring
An example of source input [+common] wiring is shown below.
source for the main unit, extension units, special function
*1 Connect DC power to [+] and [-] terminals. The same power
same time.
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
*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 Some special function units/blocks do not
have a power supply terminal.
Special adapter
24-
24+
PL
Power supply ON
Emergency
stop
MC
MC
Input extension
block
S/S
*3
5V 0V 24V
5V 0V 24V
Sink and source input type
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.
24-
24+
*1, 4
Special function
block
5V 0V 24V
S/S
24-
24+
*1, 4
*1
*3
5V 0V 24V
Input extension
block
Special function
block
5V 0V 24V
5V 0V 24V
Output extension
block
Sink and
source
input
type
Sink and
source
input
type
24V DC
Circuit protector
*2
*2
S/S
(0V)
(24V)
Main unit
*1
*1
5V 0V 24V
S/S
0V
24V
Input/output powered extension unit
5V 0V 24V
Class D
grounding
Summary of Contents for FX2-16E series
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Page 8: ... 6 Safety Precautions Read these precautions before use MEMO ...
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