You are currently viewing Product: Temperature Controller (ej1n-tc2a-qnhb)

Product: Temperature Controller (ej1n-tc2a-qnhb)

Model: EJ1N-TC2A-QNHB

Brand: OMRON

Modular Temperature Controller, Voltage output (for driving SSR)/Transistor output, Control points: 2 points, Screw terminal (M3), CT input 2 points, EV input 2 points

Ratings
Shape Module type
Fixed/Programmable Fixed
Power supply voltage 24 VDC
Allowable voltage variable range 85 to 110% of the power supply voltage
Power consumption 2.5 W max. (At maximum load)
Input Number of input points 2 point
Temperature input Thermocouple: K, J, T, E, L, U, N, R, S, B, W/C, PLⅡ
Platinum resistance thermometer: Pt100, JPt100
Infrared Thermosensor: 10 to 70 ℃, 60 to 120 ℃, 115 to 165 ℃, 140 to 260 ℃
Analog input 4 to 20 mA or 0 to 20 mA
Input impedance Current input: 150 Ω max., voltage input: 1 MΩ min.
Control method ON/OFF or 2-PID control with auto-tuning and self-tuning
Control output Number of total control output 2 point
Control output 1 Voltage output (for driving SSR) 2-points
Control output 2 Transistor output 2-points
Voltage output (for driving SSR) 2 point
12 VDC±15%, Maximum load current: 21 mA, PNP, with short-circuit protection circuit
Transistor output 2 point
Maximum operating voltage: 30 VDC
Maximum load current: 100 mA
Event input 2 point
Contact input: ON: 1 kΩ max., OFF: 100 kΩ min.
No-contact input: ON: Residual voltage 1.5 V max., OFF: Leakage current 0.1 mA max.
Short-circuit current: Approx. 4 mA per point
Sampling period 250 ms
Hysteresis 0.1 to 999.9 EU (in units of 0.1 EU)
Proportional band 0.1 to 999.9 EU (in units of 0.1 EU)
Integral time 0 to 3999 s (in units of 1 s)
Derivative time 0.0 to 999.9 s (in units of 0.1 s)
Control period 0.5 s or 1 to 99 s (in units of 1 s)
Manual reset value 0.0 to 100.0% (in units of 0.1%)
Insulation resistance 20 MΩ min. (at 500 VDC)
Dielectric strength 600 VAC 50/60 Hz for 1 min (Between current-carrying terminals of different polarity)
Vibration resistance Malfunction: 10 to 55 Hz, 20 m/s2 for 2 h each in X, Y, and Z directions
Shock resistance Malfunction: 150 m/s2, in each 6 directions 3 times
Ambient temperature (Operating) -10 to 55 ℃ (with no freezing or condensation)
For 3-year warranty: -10 to 50 ℃ (with no freezing or condensation)
Ambient temperature (Storage) -25 to 65 ℃ (with no freezing or condensation)
Ambient humidity (Operating) 25 to 85 % (with no freezing or condensation)
Degree of protection Rear case: IP20, Terminal section: IP00
Memory protection Non-volatile memory (number of writes: 100,000)
Terminal type Screw terminal (M3)
Weight Approx. 160 g
Sold separately Current Transformer (CT): E54-CT1/E54-CT3/E54-CT1L/E54-CT3L
CX-Thermo Support Software: EST2-2C-MV4
USB Serial Conversion Cable: E58-CIFQ1
Connecting Cable for G3ZA: EJ1C-CBLA050
DIN Tracks: PFP-50N/PFP-100N
End Unit: EJ1C-EDUA-NFLK/EJ1C-EDUC-NFLK
Accuracy
Indication accuracy Thermocouple: (±0.3% PV or ±1 ℃ whichever is larger) ±1 digit max.
Platinum resistance thermometer: (±0.2% PV or ±0.8 ℃ whichever is larger) ±1 digit max.
Analog input: (±0.2% FS) ±1 digit max.
(The indication accuracy of K thermocouples in the -200 to 1300 ℃ range, T and N thermocouples at a temperature of -100 ℃ max., and U and L thermocouples at any temperatures is ±2 ℃ ±1 digit max. K thermocouples in the -199.9 to 999.9 ℃ range is (±0.5% PV or ±1 ℃, whichever is greater) ±10 digit maximum. K thermocouples in the -100 ℃ maximum range is ±2 ℃ +±10 digit maximum. B thermocouple at a temperature of 400 ℃ maximum is not specified. R and S thermocouples at a temperature of 200 ℃ maximum is ±3 ℃ ±1 digit max. W/C thermocouples is (±0.5% PV or ±3 ℃, whichever is greater) ±1 digit max. PL II thermocouples is (±0.5% PV or ±2 ℃, whichever is greater) ±1 digit max.)
Influence of signal source resistance Thermocouple: 0.1 ℃ (0.2 °F)/Ω max. (100 Ω max. per line)
Platinum resistance thermometer: 0.1 ℃ (0.2 °F)/Ω max. (10 Ω max. per line)
Communication characteristics
Transmission path connection Multipoint (RS-485)
Communications method RS-485 (two-wire, half duplex)
Synchronization method Start-stop synchronization
Protocol Port A/G3ZA Connection Port: CompoWay/F, Port B: CompoWay/F, Modbus
Communication speed Port A: 38400 bps (fixed)
Port B: 9600, 19200, 38400, 57600, 115200 bps
G3ZA Connection Port: 57600 bps (fixed)
Transmission code Port A Terminal/G3ZA Connection Port: CompoWay/F: ASCII
Data bit length Port A/G3ZA Connection Port: 7 bits
Port B: 7 or 8 bits
Stop bit length Port A/G3ZA Connection Port: 2 bits
Port B: 1 or 2 bits
Error detection Port A/G3ZA Connection Port: Vertical parity (even)
Port B: Vertical parity (none, even, odd)
Block check character (BCC) with CompoWay/F
CRC-16 Modbus
Flow control None
Retry function None
Number of Units that can be connected in parallel Port A: 64 Units (128 channels, Communications connection via port A on the End Unit)
Port B: 64 Units (128 channels, Communications connection via port B on the End Unit)
G3ZA Connection Port: 8 Units (Communications connection via G3ZA port on the Basic Unit)
Communications response send delay Port A: 1 to 99 ms (Default: 1 ms)
Port B: 0 to 99 ms (Default: 5 ms)
Heater burnout /SSR failure detector
CT input (for heater current detection) 2 points
Max. heater current 100 A AC
Input current indication accuracy (±5.0 A) ±1 digit max.
Heater burnout alarm setting range 0.1 to 99.9 A (in units of 0.1 A)
0.0 A: Heater burnout alarm output turned OFF
100.0 A: Heater burnout alarm turned ON
Minimum detection ON time: 100 ms
SSR failure detector alarm setting range 0.1 to 99.9 A (in units of 0.1 A)
0.0 A: SSR failure alarm turned ON
100.0 A: SSR failure alarm turned OFF
Minimum detection OFF time: 100 ms