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Digitax HD M751 Base Servo Drives

Base servo drive for configuration flexibility

Digitax HD M751 Base servo drive offers configuration flexibility with two option slots for functionality extension and customization.

With built-in RS485 communications, Digitax M751 also features an on-board Advanced Motion Controller for distributed 1.5 axis motion control.


Maximum performance

  • 300% peak current performance pulse-duty overload
  • Optimized control loops for high dynamic performance
    • 62.5 μs current loop
    • 250 μs position and speed loop
  • Up to 16 kHz switching frequency
  • Supports a wide range of feedback technologies including Quadrature, SinCos (including absolute), SSI, BiSS, EnDat (up to 4 Mb with EnDat 2.2) and resolvers
  • Maximum performance package with high torque density, low inertia Unimotor hd servo motors
  • Analog and pulse/direction control for centralized motion
  • Advanced 1.5 axes Motion Controller, key features include:
    • Real-time tasks
    • 250 μs cycle time
    • Motion profile generator
    • Electronic gearbox
    • Interpolated CAM
    • 2 Homing functions
    • High speed position freeze

Minimum size

40 mm drive width and option bracket adds 22 mm, providing a highly competitive maximum drive width of 62 mm

  • Reduce cabinet height by directly stacking rows of drives. Patented Ultraflow™ technology expels heat directly outside of the cabinet through the rear of the drive (drive heat dissipation can also be achieved via vents on the top of the drive, as standard).
  • Fits into cabinets just 200 mm deep

Easy installation and setup

  • DIN rail alignment
  • Kits for easy multi-axis installation
  • Single motor cable and electronic motor name plate for fast set up
  • Seamless motor-drive pairing with Unimotor hd servo motors
  • Easy access pluggable connectors
  • Rapid commissioning with the Connect PC tool and SD cards
  • Machine Control Studio provides a flexible and intuitive environment for programming automation and motion control features
    • Programmable with IEC61131 standard languages


  • Two option slots for functionality extension and customization (see available option modules)
  • Built-in RS485 communications

Safety on-board

  • Reduced downtime with machine safety

- Integrated dual safe torque off

- Meets SIL3 (Safety Integrity Level 3) and PLe (Performance Level e)