Page top


NX-series Temperature Input Unit


Temperature Control Unit, Number of input 4 point, Voltage output (for driving SSR) 8 point, Heating/cooling control

Number of Channels 4 CH
Input type Temperature Sensor
Number of outputs 8 point
Heater burnout alarm None
External connection method Screwless clamping terminal block (16 terminals x 2)

Item list of NX-TS

  • Ratings / Performance
Ratings and Specifications
Number of Channels4 CH
External connection methodScrewless clamping terminal block (16 terminals x 2)
Input typeTemperature Sensor
I/O refreshing methodFree-Run refreshing
NX Unit power consumptionConnected to a CPU Unit: 1.75 W max.
Connected to Communications Coupler Unit: 1.30 W max.
Isolation methodBetween sensor inputs and internal circuitry: Transformer for power supply and digital isolator for signals.
Between inputs: Transformer for power supply and digital isolator for signals.
Between control outputs and internal circuits: Photocoupler isolation
Between control outputs: Not isolated
Heater burnout alarmNone
InputTemperature inputK, J, T, E, L, U, N, R, S, B, C/W, PLⅡ, Pt100 (Three-wires) , JPt100 (Three-wires) , Pt1000 (Three-wires)
Influence of conductor resistanceThermocouple input: 0.1 ℃/Ω (100 Ω or less per conductor)
Platinum resistance thermometer input: 0.06 ℃/Ω (20 Ω or less per conductor)
Conversion time50 ms/Unit
Input detection current0.25 mA
Resolution0.1 ℃ max.
OutputNumber of outputs8 point
Rated voltage24 VDC
Operating Load Voltage Range15 to 28.8 VDC
Output typeVoltage output (for driving SSR)
Internal I/O common processingPNP
Maximum load current21 mA/point, 168 mA/Unit
Insulation resistanceBetween isolated circuits: 20 MΩ min. (100 VDC)
Dielectric strengthBetween isolated circuits: 510 VAC 1 min, leakage current 5 mA max.
Vibration resistanceConforms to IEC60068-2-6, 5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz acceleration 9.8 m/s2, each in X, Y, and Z directions for 100 min (10 sweeps of 10 min each = 100 min total)
Shock resistanceConforms to IEC60068-2-27, 147 m/s2, 3 times each in X, Y, and Z directions
Noise immunityConforms to IEC61000-4-4, 2 kV on power supply line
Ambient temperature (Operating)0 to 55 ℃
Ambient temperature (Storage)-25 to 70 ℃ (with no freezing or condensation)
Ambient humidity (Operating)10 to 95 % (with no freezing or condensation)
Overvoltage categoryCategory II: Conforms to JIS B3502 and IEC 61131-2
EMC immunity levelZone B
GroundLess than 100 Ω
Mounting methodDIN track mounting
WeightApprox. 140 g
Sold separatelyUnit/Terminal Block Coding Pins: NX-AUX02


NX-series Temperature Input Unit