Mitsubishi Electric MELSEQ FX3S Series User Manual page 120

FX Series Programmable Controllers
3S
User's Manual - Hardware Edition
2. External power supply
For driving the load, use a smoothing power supply of 5-30 V DC that can output current two or more times
the rated current of the fuse connected to the load circuit.
3. Insulation of circuit
The internal circuit of the PLC and the output transistor are insulated with a photocoupler.
The common blocks are separated from one another.
4. Display of operation
When power is applied to the photocoupler, the LED is lit, and the output transistor is turned on.
5. Response time
The time from when the PLC drives (or shuts down) the photocoupler until the transistor is turned on (or off) is
shown in the following table.
Output number Response time
Y000, Y001
Y002 to Y015
*1. The transistor OFF time is longer under lighter loads. For example, under a load of 24 V DC 40 mA,
the response time is approx. 0.3 ms. When response performance is required under light loads,
provide a dummy resistor as shown below to increase the load current.
• Sink output type
Fuse
6. Output current
The maximum resistance loads for the main unit is shown in the following table.
The ON voltage of the output transistor is approx. 1.5 V.
When driving a semiconductor element, carefully check the input voltage characteristics of the applied
element.
Output
current
0.5 A/point
7. Open circuit leakage current
0.1 mA or less.
114
5-24 V DC
5 μs or less
10 mA or more
0.2 ms or less
24 V DC 200 mA or more
Dummy
Load
resistance
Y010
COM3
The total load current of resistance loads per common terminal should be the following value.
1 point/common: 0.5 A or less
4 points/common: 0.8 A or less
12.2 External Wiring of Transistor Output (Sink/Source) Type
Load current
When using an instruction related to pulse train output or positioning,
make sure to set the load current to 10 to 100 mA (5-24 V DC).
*1
• Source output type
Main unit
Fuse
Limitation
12 Output Wiring Procedures
Dummy
Load
resistance
Y010
+V3
Main unit