AC890 / AC890PX Series

Markets:
• Water and Wastewater Treatment
• Pulp and Paper
• Steel Mills
• Marine
• Cranes
• Wind and Solar Power
• Food and Chemical Processing

Features and Benefits:
• The AC890 can be configured for 4 different modes of operation :
• Open-loop (volts / frequency) control
This mode is ideal for basic, single or multi-motor speed control.
• Sensorless vector control
With its ultra high performance sensorless vector algorithm, the AC890 delivers a combination of both high torque and close speed regulation without the need for any speed measuring transducer.
• Closed-loop vector control
Full closed-loop flux vector performance can be achieved with the AC890 by simply adding an encoder feedback 'technology box'. This provides 100% continuous full load standstill torque, plus a highly dynamic speed loop more than sufficient for the most demanding applications.
• 4 Quadrant active front-end power supply module
With this configuration, the energy is fed back into the mains supply with sinusoidal currents and unity power factor; a very low current harmonic content is achieved (THD < 3%).

Applications:
• Slitting Lines
• Hot and Cold Saws
• Forming Rolls
• Printing Lines
• Fans, Pumps, and Blowers
• Water Treatment
• Wind Turbines
• Solar Power
• Engine Testing
• Gearbox Testing