Omron EJ1 User Manual

188
Specifications Appendix
Specifications
Ratings
HB (Heater Burnout) Alarms, HS (Heater Short) Alarms, and OC (Heater Overcurrent)
Alarm
Note (1) Heater burnouts and heater overcurrents are not detected if the control output (heating) ON time is
100 ms or less.
Detection is also sometimes not possible if a contactor is used for the control output.
(2) A heater short is not detected if the control output (heating) OFF time is 100 ms or less.
Detection is also sometimes not possible if a contactor is used for the control output.
TC4 TC2 HFU EDU
Power supply voltage 24 VDC
Operating voltage range 85% to 110% of rated voltage
Power consumption (at maximum load) 5 W max. 4 W max. 2 W max. ---
Sensor inputs Thermocouple K, J, T, E, L, U, N, R, S, B, W, PLII --- ---
Platinum resistance
thermometer
Pt100, JPt100 --- ---
Infrared Thermosensor 10 to 70°C, 60 to 120°C, 115 to 165°C, 140 to 260°C --- ---
Analog
input
Current input 4 to 20 mA, 0 to 20 mA ---
Voltage input 1 to 5 V, 0 to 5 V, 0 to 10 V ---
Control outputs Voltage output Output voltage: 12 VDC
Load current: 21 mA with short-circuit protection circuit
--- ---
Transistor output --- Max. operating voltage: 30 VDC,
max. load current: 100 mA,
residual voltage: 1.5 V max.,
leakage current: 0.4 mA max.
--- ---
Auxiliary outputs (transistor outputs) --- --- Max. operating voltage: 30 VDC,
max. load current: 50 mA,
residual voltage: 1.5 V max.,
leakage current: 0.4 mA max.
Event inputs Leakage current --- Approx. 4 mA ---
Contact input --- ON: 1 k
Ω max., OFF: 100 kΩ min. ---
Non-contact input --- ON: Residual voltage: 1.5 V max.,
OFF: Leakage current: 0.1 mA max.
---
Control method 2-PID or ON/OFF control --- ---
Setting method Via communications
Other functions Depend on the model
Ambient temperature range Operating:
−10°C to 55°C, Stored: −25°C to 65°C (with no icing or condensation)
Ambient humidity range Operating: 25% to 85%, Stored: 25% to 85%
Altitude 2,000 m max.
Inrush current (power supply) Unit: 15 A or less
Installation environment Overvoltage Category II, Pollution Class 2 (IEC 61010-1 compliant)
Maximum heater current Single Phase 100 A AC
Input current indication accuracy (±5% FS) ±1 digit max.
Heater burnout (HB) alarm setting range 0.1 to 99.9 A (in units of 0.1 A)
0.0 A: Heater burnout (HB) alarm output turns OFF.
100.0 A: Heater burnout (HB) alarm output turns ON.
Min. detection ON time: 100 ms (See note 1.)
Heater short (HS) alarm setting range 0.1 to 99.9 A (in units of 0.1 A)
0.0 A: Heater short (HS) alarm output turns ON.
100.0 A: Heater short alarm (HS) output turns OFF.
Min. detection OFF time: 100 ms (See note 2.)
Heater overcurrent (OC) alarm setting
range
0.1 to 99.9 A (in units of 0.1 A)
0.0 A: Heater overcurrent (OC) alarm output turns ON.
100.0 A: Heater overcurrent (OC) alarm output turns OFF.
Min. detection ON time: 100 ms (See note 1.)

Omron EJ1 Specifications

General

Brand	Omron
Model	EJ1
Category	Temperature Controller
Language	English