Brief Introduction

MU-N12

ModelMU-N12Main unit/Expansion unitExpansion unitResponse timeDepends on the connected sensor model*1Expansion unitsUp to 4 expansion units*2I/OControl output4 max.,NPN open collector/PNP open collector selectable,24 V or less,Main unit: 50 mA or less*3,Expansion unit: 20 mA or less,Residual voltage: 2 V or less,N.O./N.C. selectable*1*4External input5 max.,Short-circuit current: NPN: 1 mA or less,PNP: 2 mA or less,For the applied voltage, see wiring diagrams(page 3 of the instruction manual)*1*4Analog output-Protection circuitProtection against reverse power connection,power supply surge, output overcurrent,output surge, and reverse output connectionPower supplyPower voltage24 VDC, ripple (P-P) 10% or less, Class 2 or LPSCurrent consumption55 mA or less (without load)*5SensorconnectionspecificationAllowable sensor current150 mA or lessN-busconnectionspecificationAllowable passingcurrent900 mA or lessEnvironmental resistanceAmbient temperature-20 to +50 °C -4 to 122 °F (No freezing)Relative humidity35 to 85 % RH (No condensation)Vibration resistance10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directionsShock resistance1,000 m/s2, 6 times in each of the X, Y, and Z directionsMaterialCase and dust cover: PolycarbonateButtons: PolyacetalDisplay panel: PMMAWeightApprox. 70 g*1 The response time, as well as the types and number of inputs and outputs that are available, vary depending on the connected sensor model.For details, see the specific "MU-N Series User's Manual" for the model that will be connected.*2 Up to 5 N-bus devices, including the main unit (or network unit), can be linked together.*3 20 mA or less: When using the expansion unit.*4 For more information on Control output, External input, and Analog output wire allocation, please refer to the table of "Power Cable Pin Layout" on page 3 of this manual.*5 1185 mA or less when a sensor is attached, 4 outputs (with loads) are used, and expansion units are connected.