## OMRON E5CS-RKJX: Technical Overview The **OMRON E5CS-RKJX** is a 1/16 DIN (48x48mm) digital temperature controller. It is part of the E5CS series, known for being a simple, compact, and easy-to-set alternative to more complex PID controllers. --- ### 1. Model Code Breakdown Understanding the specific electronic capabilities of this model requires decoding the suffix: | Component | Code | Description | | :--- | :--- | :--- | | **Series** | E5CS | Compact Digital Temperature Controller | | **Output Type** | **R** | Relay Output (SPDT, 250 VAC, 3 A) | | **Input Type** | **K** | Thermocouple (Type K and J) | | **Alarm** | **J** | One Alarm Output | | **Supply Voltage** | **X** | 100 to 240 VAC (Standard Global Voltage) | --- ### 2. Key Electronic Specifications The internal circuitry and I/O (Input/Output) characteristics are defined by the following parameters: #### **A. Power Supply** * **Operating Voltage:** 100 to 240 VAC, 50/60 Hz. * **Power Consumption:** Approx. 7 VA. #### **B. Input Section (Sensor)** * **Sensor Type:** K-type or J-type Thermocouples (selectable via internal DIP switches). * **Indication Accuracy:** ±0.5% of PV or ±1°C (whichever is greater). * **Sampling Period:** 500 ms. #### **C. Output Section** * **Control Output (Relay):** * Mechanical Relay (SPDT). * 250 VAC, 3 A (resistive load). * Electrical life: 100,000 operations minimum. * **Alarm Output:** * Relay output, SPST-NO. * 250 VAC, 1 A (resistive load). --- ### 3. Internal Configuration (DIP Switches) Electronic behavior (such as Celsius vs. Fahrenheit or Control Mode) is managed through physical DIP switches located on the side of the internal module. | Switch No. | Function | Settings | | :--- | :--- | :--- | | **SW 1** | Input Range | Selects the temperature scale/range | | **SW 2** | Control Mode | ON: ON/OFF control; OFF: PID control | | **SW 3** | Direct/Reverse Action | Selects Heating (Reverse) or Cooling (Direct) | | **SW 4** | Temp Unit | °C or °F | --- ### 4. Terminal Arrangement The back of the unit features 8-11 screw terminals (depending on the specific revision): ```text Terminals 1-2: Power Supply (100-240 VAC) Terminals 3-5: Control Output (Relay: Common, NO, NC) Terminals 7-8: Alarm Output Terminals 9-10: Thermocouple Input (+ and -) ``` --- ### 5. Summary of Features * **Simple Tuning:** Supports self-tuning and PID control. * **Display:** 3.5-digit LED display (Red). * **Protection:** Front panel is NEMA4X/IP66 waterproof (when using the Y92S-29 gasket).