The **E5CC-RX2ABM-802** is a high-performance digital temperature controller from Omron’s E5CC series. It is designed for precision thermal management in industrial automation. --- ### 1. Model Breakdown (Nomenclature) The part number indicates specific hardware capabilities and electronic components inside the device: | Code Segment | Feature | Description | | :--- | :--- | :--- | | **E5CC** | Series | 48 x 48 mm compact digital controller | | **RX** | Control Output | **Relay Output** (SPST-NO, 250 VAC, 3 A) | | **2** | Auxiliary Outputs | 2 independent relay alarm outputs | | **A** | Power Supply | 100 to 240 VAC (Universal AC input) | | **B** | Input Type | Multi-input (Thermocouple, RTD, or Analog) | | **M** | Option 1 | Standard terminal block (screw terminals) | | **802** | Special Code | Typically indicates a specific accessory or specialized default setting | --- ### 2. Key Electronic Components & Interfaces #### A. The Processor and Display * **High-Contrast LCD:** Uses a white PV (Process Value) display that is highly visible even in low-light industrial environments. * **Sampling Loop:** Features a high-speed sampling period of **50 ms**, allowing for rapid PID calculations and response to temperature fluctuations. #### B. Control Output (The "RX" part) * **Relay Contact:** This model uses an electromechanical relay for the main control output. * **Capacity:** Rated for 3 Amps at 250 VAC. * **Life Expectancy:** Mechanical (10 million operations); Electrical (100,000 operations minimum at rated load). #### C. Input Stage (Multi-Input) The internal circuitry includes a universal analog-to-digital converter that supports: * **Thermocouples:** K, J, T, E, L, U, N, R, S, B, W, or PL II. * **Platinum Resistance Thermometers (RTD):** Pt100 or JPt100. * **Analog Current/Voltage:** 4 to 20 mA, 0 to 20 mA, 1 to 5 V, 0 to 5 V, or 0 to 10 V. --- ### 3. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Supply Voltage** | 100 to 240 VAC, 50/60 Hz | | **Power Consumption** | Max 5.2 VA (at 100-240 VAC) | | **Control Method** | ON/OFF or 2-PID (with auto-tuning) | | **Alarm Outputs** | 2 points (Relay: 3A at 250 VAC) | | **Setting Method** | Front panel keys or CX-Thermo software | | **Isolation Resistance** | 20 MΩ min. (at 500 VDC) | --- ### 4. Wiring and Installation Tips * **Terminals 1 & 2:** Power Supply (100–240 VAC). * **Terminals 3 & 4:** Control Output (Relay). * **Terminals 11 & 12:** Sensor Input (ensure polarity is correct for thermocouples). * **Noise Suppression:** Since this is a relay-output model, it is recommended to use an external RC snubber circuit if you are switching an inductive load (like a solenoid or contactor) to prevent EMF interference with the controller's electronics.