3.Input WiringWiring cautionsObserve the following cautions to avoid electrical shock,short-circuitdisconnection or damage to the unit.Do not lay signal cable near to high voltage power cable or house them in the sametrunking duct.Effects of noise or surge induction may occur.Keep signal cables a safedistance of more than 100 mm(4)from these power cables.Where input signal lines are used over an extended distance consideration for voltagedrop and noise interference should be made.Twist the end of each stranded cable so that barbed wires are not present.Never solder the end of any cables.Never connect cables ofa non permitted size.Make sure that the number of connected cables is not more than the unit has beenFix cables so that any stress is not directly applied on the terminal block or the cableconnection area.The terminal tightening torque is 0.5 to 0.6 N.m.Tighten securely to avoid malfunction.3.1 Applicable cablesUse AWG26-16 for connection with input equipment.The maximum terminal fighte ning torque is 0.5 to 0.6N'm.When using a different type of cable,defective contact of the terminal part is possible.Use a crimp terminal toachieve a good contact.LinearSectional area(mm)TerminalAWG260.1288Stranded cable:Remove sheath,twist core wires,thenconnect cableAWG161.309Single cable:Remove sheath,then connect cableTeminal processing of wire6mm(0.2inches)3.2 Wiring of inputSinkSourceFX1N-4EX-BDFX1N-4EX-BD24VDCS/SS/SBX1BX1BX2BX2BX3BX3.*1 The service power supply of the PLC main unit can be used3.3 Diodes and inputs connected in series;Vdrop across the diode less than 4VNo more than 2 LEDs should be connected in series.FX1N-4EX-BD3.4 Resistors and inputs connected in parallel;Parallel resistance Rp:FXIN-4EX-BD=15k If resistance Rp is less than the stated value,then add RbSee equation 1 for Rb calculation.Alternatively;Current leakage:FX IN-4EX-BD=1.5mA.If the current leakage(A is greater than the statedvalue,then add Rb.See equation 2 for Rb calculation.FX1N-4EX-BDS/S4RpEgn 1:Rbs-15-Rp (k)Rb6Eqn 2:Rbs-1-1.5 (kQ)BX4.Device allocation and program example4.1 Device allocationEach input of FX1N-4EX-BD is allocated a special auxiliary relay.The ON/OFF state of each input is reflected in its corresponding special auxiliary relay.BX0 input of FX1N-4EX-BD M8112BX1 input of FX1N-4EX-BD M8113BX2 input of FX1N-4EX-BD M8114BX3 input of FX1N-4EX-BD M81154.2 Program exampleM8112M8113M1M8114Y000M8115K100REF (VO refreshing)instruction cannot be used.data (K1 M8112)can be used.5.SpecificationsCautionDo not touch the terminals while power is ON.Electric shock is possible.Cleaning and additional tightening of the terminal should only be done after tuming OFFthe power supply.Electric shock is possible while the power is ON.For repair please contact a service representative.Incorrect repair can cause malfunctionor electric shock.Install and uninstall FXIN-4EX-BD after turning OFF the power supply.Installing anduninstalling while the power supply is ON may cause malfunction.Treat as industrial waste when disposing of the product.5.1 Environmental specificationsThe environmental specifications are equivalent to those of the PLC main unit.(Refer to the manual of thePLC main unit.)5.2 Power supply specificationsSpecificationSupply by PLCConsumption current24V DC25mA or less.Supply from external power supply.5.3 INPUT specificationsItemSpecificationInput signal voltage24VDC+20%-15%About 5mA/24V DCInput ON current3.5mA or morenput OFF current1.5mA or lessInput response timeAbout 10mSInput signal formWithout voltage contact or opening collector TransistorCircuit insulationPhoto couplerOperation dis playLED lighting when photo coupler is drivenManual number:JY992D95001Manual revision:ADate:May2001MITSUBISHI ELECTRIC CORPORATIONMITSUBISHIUSER'S MANUALPLCFXIN-4EXBD.Nm)6MITSUBISHI ELECTRIC CORPORATION