Wiring
FP0
7
−
11
7.4
Input Wiring
7.4.4
LED-Equipped Limit Switch
If the input of the FP0 does not turn OFF because of the leakage current from the
LED-equipped limit switch, the use of a bleeder resistor is recommended, as shown
below.
FP0
Internal circuit
r: Internal resistor of limit switch (k
Ω
)
R: Bleeder resistor (k
Ω
)
The OFF voltage of the FP0 input is 2.4 V, therefore when the power supply voltage is 24 V,
select R so that
the current will be greater than I =
The resistance R of the bleeder resistor is: R < or =
The wattage W of the resistor is: W =
In the actual selection, use a value that is 3 to 5 times the value of W.
13.44
5.6
×
I
−
2.4
(k
Ω
)
24 - 2.4
r
(Power supply voltage)
2
R
LED-equipped
limit switch
COM
Input
terminal
Bleeder
resistor
Summary of Contents for FP0 Series
Page 14: ...Table of Contents FP0 xii ...
Page 16: ...Overview FP0 1 2 ...
Page 82: ...S LINK Control Unit FP0 4 2 ...
Page 95: ...Chapter 5 I O Allocation 5 1 I O Number 5 3 5 2 Control Unit 5 4 5 3 Expansion I O Unit 5 5 ...
Page 96: ...I O Allocation FP0 5 2 ...
Page 100: ...I O Allocation FP0 5 6 5 3 Expansion I O Unit ...
Page 102: ...Installation FP0 6 2 ...
Page 112: ...Installation FP0 6 12 6 5 Installation Using FP0 Flat Type Mounting Plate ...
Page 114: ...Wiring FP0 7 2 ...
Page 198: ...High speed Counter Pulse Output PWM Output FP0 9 34 9 5 PWM Output Function ...
Page 200: ...General use Serial Communications FP0 10 2 ...
Page 210: ...Self Diagnostic and Troubleshooting FP0 11 2 ...
Page 220: ...Specifications FP0 12 2 ...
Page 234: ...Dimensions FP0 13 2 ...
Page 243: ...Chapter 14 Appendix ...
Page 380: ...14 138 14 7 ASCII Codes ...