Terminal Block Layouts - Mitsubishi Electric FX3U-232ADP User Manual

2. External Wiring of Source Output Type
Load
Y0
DC power
Fuse
supply
+V0
Load
Y1
DC power
Fuse supply
+V1
PLC
3.6.3 Cautions in external wiring
As for the details of Instructions for connecting input devices, refer to
the following manual.
→ Refer to FX
Series User's Manual - Hardware Edition.
3G
Protection circuit for load short-circuits
A short-circuit at a load connected to an output terminal could cause
burnout at the output element or the PCB. To prevent this, a
protection fuse should be inserted at the output.
Use a load power supply capacity that is at least 2 times larger than
the total rated fuse capacity.
Contact protection circuit for inductive loads
When an inductive load is connected, connect a diode (for
commutation) in parallel with the load as necessary.
The diode (for commutation) must comply with the following
specifications.
Item Guide
Reverse voltage 5 to 10 times of the load voltage
Forward current Load current or more
Interlock
Loads, such as contactors for normal and reverse rotations, that
must not be turned on simultaneously should have an interlock in the
PLC program and an external interlock.
3.7 Triac output specifications and example of
external wiring
As for the details of the triac output specifications and external
wiring, refer to the following manual.
→ Refer to FX
3G Series User's Manual - Hardware Edition.
3.7.1 Triac output specifications
Item Specification
Number
FX -16EYS,
2N
of output 16 points
FX -32ES
2N
points
Refer to FX Series
3G
Output connecting type User's Manual - Hardware
Edition
Output form Triac (SSR)
External power supply 85 to 242V AC
*1
Resistance load
0.3A/point
Max. load
15VA/100V AC,
Inductive load
30VA/200V AC
0.4VA/100V AC,
Min. load
1.6VA/200V AC
1mA/100V AC,
Open circuit leakage current
2mA/200V AC
OFF→ON 1ms or less
Response
time
ON→OFF 10ms or less
Circuit insulation Photo-thyristor insulation
LED on panel lights when
Display of output operation
photo-thyristor is driven.
*1 The total load current of resistance loads per common terminal
should be the following value or less.
- 4 output points/common terminal : 0.8A
- 8 output points/common terminal : 0.8A
As for the number of outputs per common terminal, refer to
"Chapter 4 interpretation of partition" and the following
manual.
→ Refer to FX
Series User's Manual - Hardware Edition.
3G
3.7.2 External Wiring of Triac Output
Load
Y0
AC power
Fuse
supply
U
COM1
Load
Y4
AC power
Fuse
supply
U
COM2
PLC
3.7.3 Cautions in external wiring
As for the details of Instructions for connecting input devices, refer to
the following manual.
→ Refer to FX Series User's Manual - Hardware Edition.
3G
Protection circuit for load short-circuits
A short-circuit at a load connected to an output terminal could cause
burnout at the output element or the PCB. To prevent this, a
protection fuse should be inserted at the output.
Micro current load
The PLC's internal Triac output circuit is equipped with a turn-off C-R
absorber. When connecting a very low current load of "0.4VA/100V
AC or less, or 1.6VA/200V AC or less", please connect a surge
absorber parallel to the load.
Select the rated voltage of a surge absorber that is suitable for the
load being used. Refer to the table below for other specifications.
Item Guide
Static electricity capacity Approx. 0.1μF
Resistance value Approx. 100 to 200 Ω
Interlock
Loads, such as contactors for normal and reverse rotations, that must
not be turned on simultaneously should have an interlock in the PLC
program and an external interlock.
4.

Terminal block layouts

For details on the terminal block layout, refer to the following manual.
→ Refer to FX
Series User's Manual - Hardware Edition.
3G
Interpretation of partition
The partition of the output terminals (see following figure) indicates
the range of the output connected to the same common.
Example: FX 3G -40MT/ES
Output terminal
0V Y0 Y1
24V COM0 COM1
Partition
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occur as a result of using the contents noted in this manual.
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