The KL1704 digital input terminal acquires the binary control signals from the process level and transmits them, in an electrically isolated form, to the higher-level automation unit. It is possible to connect 120 V/230 V AC sensors directly. The Bus Terminal contains four channels that indicate their signal state by means of light emitting diodes.
Technical dataKL1704Connection technology2-wireNumber of inputs4Nominal voltage120/230 V AC“0” signal voltage0…40 V“1” signal voltage79…260 VInput filtertyp. 10 msInput currenttyp. 4.6 mA at 230 V, typ. 2.3 mA at 120 VCurrent consumption K-bustyp. 3 mASwitching times10 msElectrical isolation500 V (K-bus/mains voltage); 3750 V AC, 1 min.Bit width in the process image4 inputsConfigurationno address or configuration settingSpecial featuresohmic/capacitive input behaviourWeightapprox. 60 gOperating/storage temperature0…+55 °C/-25…+85 °CRelative humidity95 %, no condensationVibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4Protect. class/installation pos.IP 20/variableApprovals/markingsCE, UL
