MODEL: 53U - M-System

MODEL: 53UPC. Please refer to the internet software download site orthe users manual for the PC configurator for applicablecable types.GENERAL SPECIFICATIONSConstruction: 96-mm square (1/4 DIN size) panel flushmountedDegree of protectionFront panel: IP 50Terminal block, housing: IP 30ConnectionVoltage input: Connector type terminal block(applicable wire size ≤ 2.5 dia, 0.5 – 3.5 mm 2 )Current input: Screw terminal block(applicable wire size ≤ 2.4 dia, 0.5 – 3.5 mm 2 )Output, power: Connector type terminal block(applicable wire size ≤ 2.4 dia, 0.5 – 2.5 mm 2 )Configuration: Single phase/2-wire and 3-wire, 3-phase/3-wire balanced/unbalanced load, 3-phase/4-wirebalanced/unbalanced loadHousing material: Flame-resistant resin (gray)Isolation: Voltage input to current input to contact input tonetwork interface or configurator jack or analog output tocontact output (between each contact output except forExternal Interface code 8) to power• Measured variablesVoltage: 1 – N, 2 – N, 3 – N, 1 – 2, 2 – 3, 3 – 1Current: 1, 2, 3, NAverage current: 1, 2, 3Active / reactive / apparent power: 1, 2, 3, ΣPower factor: 1, 2, 3, ΣFrequencyPhase angle between voltages: 1 - 2, 2 - 3, 3 - 1Active energy incoming / outgoing: ΣReactive energy inductive / capacitive: ΣApparent energy: ΣActive / reactive / apparent power intervals (demand)Other demandsHarmonic contents: 2nd to 31stMax. and min. values■ DISPLAY: LCD with LED backlight(LED OFF timer available)Signed: 4 digits, 3 linesEnergy: 9 digits, 1 lineBargraph: 3 pointsINPUT SPECIFICATIONSFrequency: 50 / 60 Hz (45 – 65 Hz)• Voltage InputRated voltageLine-to-line (delta voltage): 480 VLine-neutral (phase voltage): 277 V (single-phase / 2-wireand 3-wire)Consumption VA: ≤ ULN 2 / 300 kΩ / phaseOverload capacity: 200 % of rating for 10 sec., 120%continuousSelectable primary voltage range: 50 – 400 000 V• Current InputRated current: 1 A or 5 AConsumption VA: ≤ I 2 · 0.01 Ω / phaseOverload capacity: 4000 % of rating for 1 sec., 2000% for 4sec., 120% continuousSelectable primary current range: 1 – 20 000 AOperational rangeVoltage, current, apparent power: ≤ 120 % of the ratingActive/reactive power: ≤ ±120 % of the ratingFrequency: 45 – 65 HzPower factor: ≤ ±1■ Contact Input: 24 V DC or 110 V DC(input resistance 6 kΩ)Detecting voltage: External 24 V DC ±10 % or 110 V DC±10 %ON current: ≥ 1 mA (≤ 24 kΩ @ 24 V, ≤ 110 kΩ @110 V)OFF current: ≤ 0.1 mA (≥ 240 kΩ @ 24 V, ≥ 1.1 MΩ @ 110V)Detecting time: 10 – 1000 msec.The status can be monitored on the Modbus; usable to resetenergy count or to update average (demand) value.OUTPUT SPECIFICATIONS■ Network InterfaceCommunication: Half-duplex, asynchronous, no procedureInterface: Conforms to EIA RS-485Max. transmission distance: 500 metersBaud rate: 1.2 – 38.4 kbpsMax. number of nodes: 31 (except the master)Protocol: Modbus RTUNode address: 1 – 247 (factory default setting: 1)Parity: none, even or odd (factory default setting: odd)Stop bit: 1 or 2 (factory default setting: 1)Media: Shielded twisted-pair cable (CPEV-S 0.9 dia.)■ DC Current: 4 – 20 mA DCLoad resistance: ≤ 270 ΩMeasurands converted into analog output: Voltage, Current,Active / reactive / apparent power, Power factor, Frequency,Harmonic contents■ DC Voltage: 1 – 5 V DCLoad resistance: ≥ 5000 ΩMeasurands converted into analog output: Voltage, Current,Active / reactive / apparent power, Power factor, Frequency,Harmonic contents■ Open Collectorhttp://www.m-system.co.jp/ 53U SPECIFICATIONS ES-6485 Rev.19 Page 2/8