This motor speed controller is suitable for AC 220/240V 50/60HZ motor.<br>Speed regulation range is 90-1400r/min 50Hz, 90-1700r/min 60Hz.<br>Suitable for packaging, printing, food, electronics, instrumentation, clothing industry production line for speed control drive device.<br>The controller uses high quality electronic circuit and integrated components for durability.<br>It has small size, high precision, wide speed controlling range, and long service life.<br><br>of use:<br>1. Turn off the power, connect it according to the wiring diagram and make sure the connection is correct.<br>2. Fix the controller well and set the speed to the lowest "0", so as to avoid sudden current and permanent damage when starting the power supply.<br>3. Then turn on the power and adjust the speed knob to the desired position. Please turn off the power when not needed.<br>4. The governor is connected to the motor. If the torque or speed is found to be inconsistent with the requirements, please adjust the fine-tuning potentiometer on the side of the product.<br>5. To change the running direction of the motor, simply replace the jumper lines of "CCW" and "CW" on the back of the controller.<br>6. Select COM and CW short connection, then the motor will rotate clockwise.<br>7. Select COM and CCW short connection, then the motor do counterclockwise rotation.<br>Colour: black<br>Material: ABS<br><br>Package Contents:<br>1 x Motor Speed Controller<br><br>Only the above package content, other products are not included.<br>Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.