Features: This motor speed controller is designed for AC220V, 50/60Hz motors. Speed regulation range: 90–1400 RPM at 50Hz; 90–1700 RPM at 60Hz. Suitable for use in packaging, printing, food processing, electronics, instrumentation, medical equipment, and garment manufacturing applications. Built with high-quality electronic circuitry and integrated components for reliability and durability. Compact size, high control precision, wide speed adjustment range, and extended service life. Note: Actual color may vary slightly due to monitor settings and lighting conditions. Allow for a 1–3 cm measurement tolerance due to manual measurement. Material: Electronic components Dimensions: 60 × 90 × 100 mm Package includes: 1 × Motor Speed Controller Cable length: Approx. 70 cm Input voltage: AC 220V Control method: Forward/reverse (adjustable) Mounting type: Panel-mount with screw installation Speed adjustment range: 90–1400 RPM Technical specifications: 1. Power supply: AC 220V, 50/60Hz; voltage fluctuation tolerance: ±10% of rated voltage 2. Operating temperature range: –10°C to +50°C 3. Maximum relative humidity: <90% (non-condensing) 4. Speed adjustment range: 90–1400 RPM (50Hz); 90–1700 RPM (60Hz) Usage instructions: 1. Before powering on, set the external speed knob to “0” to prevent inrush current and potential damage. 2. This controller uses generator feedback voltage control. Control wires are color-coded: blue and yellow. 3. If motor torque or speed does not meet requirements, adjust the side-mounted fine-tuning potentiometer. 4. To reverse motor direction: - Connect COM to CCW for forward rotation. - Connect COM to CW for reverse rotation. 5. The action switch controls motor start/stop only — it is not intended for power disconnection. Always disconnect main power when the unit is unused for extended periods. Wiring guide (6-pin single-row flat connector): - Main line: Red - Capacitor lines: Black, White - Feedback lines: Yellow, Blue - Ground wire: Green