WiringFP07 − 117.4 Input Wiring7.4.4 LED-Equipped Limit SwitchIf the input of the FP0 does not turn OFF because of the leakage current from theLED-equipped limit switch, the use of a bleeder resistor is recommended, as shownbelow.FP0Internal circuitr: Internal resistor of limit switch (kΩ)R: Bleeder resistor (kΩ)The OFF voltage of the FP0 input is 2.4 V, therefore when the power supply voltage is 24 V,select R so thatthe 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.13.445.6 × I − 2.4 (kΩ)24 - 2.4r(Power supply voltage) 2RLED-equippedlimit switchCOMInputterminalBleederresistor
