Omron Temperature Controller E5EK-AA2-DRT

Core Specifications Category Details Product Type E5EK Series 1/8 DIN temperature controller (relay output, 2 aux relays, DeviceNet, 2 event inputs, 100–240 VAC, screw terminals) Manufacturer Omron Automation Mounting Panel mount (45×92 mm cutout); screw terminal block Power Supply 100–240 VAC (50/60 Hz); power consumption: ~10 VA Input Type Universal multi-input (thermocouple: B/E/J/K/L/N/R/S/T/PLⅡ; Pt100/JPt100 RTD; analog: 0–20 mA/4–20 mA/1–5 V/0–5 V/0–10 V; software-selectable) Display 4-digit dual LED (PV: red 14 mm; SV: green 10 mm); multi-segment status indicators (auto-tuning, alarm, communication, control action) Control Method ON/OFF, 2-DOF PID with auto-tuning (heating/cooling selectable; supports cascade control) Control Output 1×relay (SPDT; 250 VAC 5 A resistive max; 30 VDC 5 A resistive max) Auxiliary Output 2×independent relay alarms (SPDT; 250 VAC 2 A resistive max each; configurable for high/low temp, sensor fault, process deviation) Event Input 2×dry contact inputs (for remote run/stop, SP adjustment, auto-tuning trigger, alarm reset) Communication DeviceNet (conforms to ODVA standards; supports explicit/messaging communication; up to 500 kbps) Heater Monitoring Optional single-phase heater burnout detection (requires external current transformer) Sampling Period 50 ms Indication Accuracy Thermocouple: ±0.3% PV ±1 digit; Pt100: ±0.2% PV ±1 digit; analog: ±0.2% FS ±1 digit Front Protection IP66 Operating Temperature -10°C to +55°C Certifications CE, UL, CSA, RoHS compliant Dimensions 48×96×110 mm (W×H×D) Weight ~220 g Key Functions & Advantages Precision Control & Flexible I/O 2-DOF PID with auto-tuning and cascade control support optimizes performance for complex thermal processes with long response lags (e.g., furnace temperature regulation). Universal multi-input eliminates hardware changes for mixed sensor types, enabling use across diverse heating/cooling applications. 2 event inputs enable remote process control (run/stop, setpoint adjustment) and alarm reset, reducing on-site manual intervention. DeviceNet Network Integration DeviceNet connectivity enables seamless integration with Omron PLCs (e.g., CJ2M, CP1H) and HMIs for centralized monitoring, parameter adjustment, and data logging. Supports explicit messaging for configuration and I/O messaging for real-time process data exchange, enhancing system automation efficiency. Network-based control reduces wiring complexity in distributed multi-zone systems. Robust Safety & Reliability 2 independent auxiliary relays provide multi-layered protection (e.g., high-temp shutdown, sensor break alert, heater fault warning) to prevent equipment damage and process downtime. Optional heater burnout detection (with external CT) monitors heating element integrity for critical applications. IP66 front protection resists dust and water ingress in harsh industrial environments; password lock prevents unauthorized parameter changes.