The **E5GN-R2HTD-C** is a high-performance digital temperature controller belonging to Omron’s E5GN series. It is characterized by its compact 1/32 DIN size (48 x 24 mm) and is designed for precise thermal management in industrial environments. --- ### ## Technical Specifications Overview The following table breaks down the electronic specifications and part nomenclature for this specific model: | Feature | Specification | | :--- | :--- | | **Series** | E5GN (Compact 1/32 DIN) | | **Control Output** | **R**: Relay Output (250 VAC, 2 A) | | **Auxiliary Outputs** | **2**: Two auxiliary outputs (Relay) | | **Heater Burnout** | **H**: Heater Burnout Detection included | | **Power Supply** | **TD**: 24 VAC/VDC | | **Terminal Type** | **C**: Screwless Clamp Terminals | --- ### ## Detailed Electronic Components #### 1. Control Output (Relay) The **"R"** in the model name signifies a **Relay Output**. * **Function:** It acts as a mechanical switch to turn the heating element on or off. * **Rating:** Typically 250 VAC, 2 A (resistive load). * **Application:** Best suited for controlling contactors or small heaters where high-speed switching (PID pulsing) is not extremely frequent, as relays have a mechanical life cycle. #### 2. Auxiliary Outputs The **"2"** indicates the unit features two independent auxiliary relay outputs. * **Usage:** These are commonly used for **Alarms** (High limit, Low limit, Deviation) or simple status signaling to a PLC. #### 3. Power Supply (TD) The **"TD"** suffix is critical for installation. * **Voltage:** It operates on **24 VAC (50/60 Hz) or 24 VDC**. * **Safety:** This is a low-voltage model, often used in control cabinets where 110/220V is not preferred for safety or battery-backed systems. #### 4. Sensor Inputs (Universal) While not explicitly in the suffix, the E5GN series features multi-input capabilities: * **Thermocouples:** K, J, T, E, L, U, N, R, S, B, W. * **Platinum Resistance Thermometers:** Pt100 or JPt100. * **Non-contact Temperature Sensors:** ES1B. #### 5. Heater Burnout Detection (H) This unit includes a specific electronic circuit to monitor the current flowing to the heater. * **Requirement:** Requires a Current Transformer (CT) to be wired to the unit. * **Benefit:** It provides an alarm if the heater element fails, preventing scrap production. #### 6. Wiring Interface (C) The **"C"** denotes **Screwless Clamp Terminals**. * **Benefit:** Reduces wiring time and prevents wires from loosening due to vibration, which is a common electronic failure point in industrial machinery. --- ### ## Key Features * **High-Speed Sampling:** 250 ms sampling loop period. * **Display:** Dual 4-digit display (Current Value in green, Set Value in orange). * **Control Modes:** ON/OFF control or 2-PID control (with auto-tuning).