The **L230-R** typically refers to a specific series of **Rotary Actuators** manufactured by Belimo, commonly used in HVAC systems for the motorized control of dampers and valves. --- ### 1. Technical Specifications Table Below are the primary electronic and operational specifications for the L230-R actuator: | Feature | Specification | | :--- | :--- | | **Nominal Voltage** | AC 100...240 V | | **Nominal Voltage Frequency** | 50/60 Hz | | **Power Consumption (Running)** | ~2.5 W | | **Power Consumption (Holding)** | ~0.6 W | | **Torque** | 5 Nm (Newton meters) | | **Angle of Rotation** | Max. 95°, adjustable by mechanical stops | | **Running Time** | 150 seconds / 90° | | **Protection Class** | II (reinforced insulation) | | **Enclosure Rating** | IP54 (dust & splash water protected) | --- ### 2. Key Electronic Components & Internal Design The L230-R is an integrated electromechanical device containing the following electronic subsections: #### A. Power Supply Unit (PSU) * **Universal Input:** The internal circuitry is designed to handle a wide range of AC voltage (100V to 240V). * **Transformerless Design:** It usually utilizes a high-efficiency switching regulator to step down the mains voltage to the low-voltage DC required for the internal logic and motor. #### B. Motor & Drive Train * **Brushless DC Motor (BLDC) / Synchronous Motor:** Most modern units use a brushless motor to ensure longevity and constant torque regardless of voltage fluctuations. * **Overload Protection:** The electronics monitor the current draw. If the damper is blocked, the motor automatically stops to prevent burnout without needing limit switches. #### C. Control Interface * **On/Off Control:** The simplest configuration where the actuator moves when power is applied and stays in position when power is maintained. * **3-Point Control:** Electronic logic allows for "Open-Stop-Closed" functionality based on which terminals receive power. --- ### 3. Wiring Diagram (Generic Representation) The electronic connection usually follows a standard 3-wire or 2-wire setup: ```text Terminal 1 (Blue): Neutral (N) Terminal 2 (Brown): Phase (L) - Power for "Open" Terminal 3 (White): Control signal for "Close" (in 3-point models) ``` ### 4. Safety and Reliability Features 1. **Manual Override:** An electronic/mechanical clutch release button allows manual positioning without power. 2. **Direction of Rotation:** A physical switch on the housing allows the user to electronically reverse the rotation direction (Clockwise vs. Counter-Clockwise). 3. **End-of-Stroke Sensing:** The electronics sense the increase in current when the mechanical limit is reached, cutting power to the motor while maintaining holding torque. ---