The **E5CC-RX2ASM-800** is a digital temperature controller from Omron’s E5CC series. It is designed for precise thermal management in industrial automation. ### 1. Key Technical Specifications The model name "E5CC-RX2ASM-800" provides a specific configuration of electronic components: | Feature | Specification | | :--- | :--- | | **Input Type** | Multi-input (Thermocouples, RTDs, or Analog voltage/current) | | **Control Output 1** | Relay Output (SPST-NO, 250 VAC, 3 A) | | **Auxiliary Outputs** | 2 Independent Relay outputs (Alarms/Events) | | **Power Supply** | 100 to 240 VAC, 50/60 Hz | | **Terminal Type** | Screw terminal blocks (Standard) | | **Display Type** | Large White PV display (15.2 mm height) with 3-color status change | --- ### 2. Core Electronic Components & Architecture #### A. The Control Unit (Microprocessor) The heart of the E5CC is a high-speed microprocessor capable of a **50 ms sampling period**. This allows the device to process sensor data and adjust outputs nearly instantaneously, which is critical for systems with fast thermal responses. #### B. Output Components * **Relay (R):** This model uses an electromechanical relay for the primary control output. Unlike a Voltage Output (SSR drive), this physically opens and closes a circuit to drive a contactor or heater directly (within the 3A limit). * **Auxiliary Relays:** Two additional SPST-NO relays are included for "Auxiliary Outputs" (the **2** in the model name). These are typically used for high/low temperature alarms or system error signals. #### C. Measurement Circuitry (Input) The internal ADC (Analog-to-Digital Converter) supports universal inputs. It can be electronically configured via the menu to read: * **Thermocouples:** K, J, T, E, L, U, N, R, S, B, W, or PL II. * **Platinum Resistance Thermometers:** Pt100 or JPt100. * **Analog Sensors:** 4 to 20 mA, 0 to 20 mA, 1 to 5 V, 0 to 5 V, or 0 to 10 V. #### D. Power Supply & Protection The "ASM" suffix indicates the power supply and terminal structure. The internal switch-mode power supply (SMPS) handles a wide range (100–240 VAC), making it globally compatible. It includes internal surge protection and filtering to operate in "noisy" industrial environments. --- ### 3. Wiring Configuration The physical connections are made via the back terminal block: | Terminal Numbers | Function | | :--- | :--- | | **1 & 2** | Power Supply (100-240 VAC) | | **3, 4, 5** | Control Output 1 (Relay) and Aux Relays | | **E1, E2** | Auxiliary Output Common | | **10, 11, 12** | Input Terminals (Sensor connections) | --- ### 4. Advanced Features * **PID Control:** Uses Omron’s 2-PID algorithm for optimized overshoot suppression. * **Adaptive Self-Tuning:** The controller can calculate the best PID constants automatically by analyzing the thermal behavior of the connected load. * **Waterproof Protection:** The front panel is rated **IP66**, allowing it to be used in wash-down environments. ---