Unidrive M AC Drive

Unidrive M AC Drive Series

The Unidrive M series is a family of modular AC variable frequency drives and supporting components from Emerson (Nidec), along with related Control Techniques products. These drives control the speed and torque of three-phase AC motors and are built for precise motor control in demanding industrial automation and motion applications, including paper processing, conveyors, web handling, and packaging machinery.

The series spans a range of drive ratings, from smaller units through high-power 480V models rated for 250/280kW motors. Many units support master–follower configurations, where multiple drives operate in coordination under a single master controller for synchronized multi-motor operation.

Products in This Series

In addition to the AC motor drives themselves, this series includes the supporting components needed to build and configure complete drive systems:

• AC drives — including M200, M700, and M702 models, master and follower units
• Master controllers for coordinating multi-drive configurations
• Interconnect cables for leader–follower communication
• Memory and storage components, including smart cards and SD card adaptors for parameter and configuration data