Servo Drive CMMT-AS

  • Universal servo drive for PM-synchronous servo motors up to 700 W
  • Supports the Festo motor series EMMT-AS, EMME-AS and EMMS-AS as well as thirdparty motors
  • Integrated single-phase mains connection 230 V AC, mains filter and braking resistor, connection option for external braking resistor
  • Precise force, speed and position control
  • Point-to-point to interpolated motion
  • Comprehensively integrated protective functions for the drive, motor and axis with automatic motor shut-down/quick stop
  • Bus protocol EtherCAT® with the profile CIA 402
  • Prepared device description files and function elements for integration in PLC systems


  • Automatically with the "Festo Automation Suite" as well as auto-tuning
  • Directly via fieldbus and PLC
  • Data backup concept via PLC or control unit CDSB

Supports digital absolute encoders (EnDat, Hiperface, Nikon-A) in the motor as well as incremental (A/B, Sin/Cos) displacement encoders on the axis.

Integrated safety functions:

  • Safe Torque Off (STO) up to SIL3/Cat. 4 PL e
  • Safe Stop 1 (SS1) when using a suitable external safety switching device and suitable circuitry for the servo drive
  • Safe Brake Control (SBC) up to SIL3/Cat. 3 PL e
  • Diagnostic outputs STA and SBA for feedback on the active safety function

EPLAN macros for fast and reliable planning of electrical projects in combination with servo drives, motors and cables. This enables a high level of planning reliability, standardised documentation, and there is no need to create symbols, graphics and master data.


Servo Drive CMMT-AS



Festo SE & Co. KG