Description
The AC690+ series is a single range of AC drives designed to meet the requirements of all variable speed applications from simple, single-motor speed control through to the most sophisticated, integrated multi-drive systems. At the heart of the AC690+ is a highly advanced, 32 bit microprocessor based, motor control algorithm, to which can be added a host of control options that allow you to tailor the drive to meet your exact requirements.
Configurable
It is possible to configure the AC690+ into 4 different operating modes:
Open Loop Control
The V/Hz mode is ideal for simple speed control. The 6901 HMI is used for setting-up programming and controlling the drive. It has been ergonomically designed with a back-lit, 32-character,Alphanumeric display to provide intuitive access to all functions in a logical menu-driven format.
Sensorless Vector control
The sensorless mode assures an elevated accuracy of speed control, thanks to the algorithm of MRAS (Model Reference Adaptive System) control.
This innovative design guarantees speed control (without any feedback) based on continuous motor-modeling.
Closed Loop Flux Vector control
Full Flux Vector Control is obtained by simply fitting the AC690+ with an encoder receiver Tech Box and encoder.
This guarantees 100% continuous control from zero speed, to satisfy most demanding applications.
Regenerative control
The regenerative mode reuses the energy generated by the motor (during deceleration or conditions of overhauling load) in applications such as unwinds, test stands and other such applications.
