890 AC Drives

The AC890 is a compact, modular system drive designed for controlling the speed and position of open-loop and closed-loop AC or servo motor applications, whether single or multi-motor.

Designed for Demanding Environments
For use in environments with dust, humidity, or corrosive atmospheres, the AC890 can be optionally equipped with conformally coated circuit boards, enhancing its resistance to corrosion and improving both reliability and longevity.

Industries that would benefit from the conformal coating option include:

Water and wastewater treatment
Paper and pulp manufacturing
Steel production
Marine and offshore operations
Outdoor crane applications
Wind and wave power generation
Food processing
Motor Types Supported
Asynchronous motors
Torque motors
Brushless motors
Key Features
The AC890 can be configured for four operational modes:

Open-loop (volts/frequency) control
This mode is ideal for basic speed control of single or multi-motor systems.

Sensorless vector control
With its high-performance sensorless vector algorithm, the AC890 delivers both high torque and precise speed regulation without needing a speed measurement transducer.

Closed-loop vector control
By adding an encoder feedback 'technology box,' the AC890 achieves full closed-loop flux vector performance, providing continuous full load standstill torque and a highly dynamic speed loop suitable for even the most demanding applications.

4 Quadrant active front-end power supply module
This configuration enables energy to be fed back into the mains supply with sinusoidal currents and unity power factor, while maintaining a very low current harmonic content (THD < 5%).

Broad Compatibility with Feedback Options
The AC890 is compatible with a wide variety of feedback devices and any AC motor, making it possible to upgrade without replacing your existing motor, which can save both time and cost. Supported feedback options include:

Incremental encoder
EnDat 2.1 (SinCos) encoder
Resolver
Compliance with International Standards
The AC890 meets global industry standards for safety and performance.