Product Description: The 690+ Series AC Drive is designed for speed control of standard 3-phase induction motors. Larger models are available in a range of ratings for constant torque and quadratic torque applications. This dual mode feature provides a cost effective solution to general industrial applications, as well as the control of pumps and fans. • The unit can be controlled remotely using configurable analogue and digital inputs and outputs, requiring no optional equipment. • Controlling the unit locally using the 6901 Keypad, or remotely using ConfigEd Lite (or other suitable PC programming tool) gives access to parameters, diagnostic messages, trip settings and full application programming. Other features also become available, such as the advanced sensorless vector control scheme which gives high torque, low speed operation; selectable switching frequencies; and a unique Quiet Pattern control system that minimises audible noise from the motor. • Technology Options can be fitted to the drive to give serial communications, closed loop speed control, and the factory-fitted dynamic braking functions. • A factory-fitted System Board enables the drive for high end web processing or mini PLC replacement applications.