Alpha i & Beta i Series Servos

Alpha i and Beta i Servos

These digital servo systems offer high performance and reliability. GE Fanuc αi and βi Series Servos, based on over five million axes installed worldwide, offer superior reliability and performance for unprecedented mean time between failures. The αi and βi Series Servos are available in a wide range of ratings for use with the GE Fanuc DSM324i motion controller.

An αi or βi Series Servo System consists of a motor and its corresponding amplifier.

High-Performance Serial Encoders
  • Standard serial encoders built into the motors provide exceptional feedback resolution of 64K or 128K counts per revolution for βi series and 1 million counts per revolution for αi series motors . Serial encoders support higher resolutions at high motor velocities than standard quadrature encoders and are more immune to noise. An optional battery connection provides absolute position feedback, eliminating the need to home the system after a power shutdown.
Reduced Tuning & Setup
  • Little tuning is required for properly sized drives. All drive parameters are stored in the controller in a standard motor database. Configuration settings are not stored in the drive, making it possible to replace drives with little set-up time. Stored drive and machine parameters are quickly transferred to repeat production machines.
All-Digital System
  • All control loops—current, velocity, and position—are closed in the GE Fanuc DSM Series motion controller. High-speed microprocessors and/or digital signal processors (DSPs) in the controller provide loop update times of 250 μs. The high response servo system can compensate for machine design limitations, yielding faster acceleration/deceleration rates and better responses to load changes.
All-Digital Servo Command Signals
  • The DSM324i and βi or αi Series amplifiers use a high-speed fiber optic command interface. The DSM302 and DSM314 use a PWM command interface between the controller and amplifier, which improves efficiency by varying the on time of the transistor switches that control motor voltage and current. With its superior noise immunity, both of these GE Fanuc digital command interfaces allows for an increased signal to noise ratio for improved accuracy and performance.

Features & Benefits

Servo Motor Performance for Demanding Applications
  • The GE Fanuc Servo motors are a rugged family of brushless servo motors covering a broad torque and speed range. These motors utilize high-energy rare earth magnets for a superior cost/performance ratio. Low inertia design provides high acceleration rates for improved machine cycle rates. The αis Series and βis Series motors use high-resolution serial encoder feedback and are matched with αi Series and βi Series amplifiers and DSM300 Series Motion Controllers.
Servo Motor Features
  • Models from 0.84-644 in-lb (0.095-75 Nm) continuous
  • Rugged resolver feedback on MTR-Series; high resolutionserial encoder feedback on α Series and βi Series.
  • Absolute feedback available on α Series and βi Serieswith optional battery backup
  • Brushless design minimizes electromagneticinterference, carbon dust and maintenance
  • Metric servo mounting configurations
  • Optional electrically released holding brakes
  • Rugged TENV housing with IP55 to IP67 protection rating
  • Some models include integral shaft oil seal
  • Continuous torque range from 0.32 Nm to 19.1
Additional Information

Success Stories

Mori Seiki

Integrated Material Handling, Machining Boosts Job Shop Productivity by 40 Percent.