SPiiPlusCMxa EtherCAT Motion Controller

Dec. 21, 2021

To maximize motion system accuracy, the SPiiPlusCMxa EtherCAT Motion Controller, suitable for applications with micron to nanometer resolutions and demanding velocity control requirements, includes up to three integrated motor drives that leverage powerful servo control algorithms. It is also configurable to control up to 64 axes.


The CMxa integrates universal motor and encoder technology, enabling system designers to control any type of motor or stage. Its fixed servo sampling and update rate provides the tightly synchronized, real-time control required for sophisticated multi-axis machine designs.


Designed as a drop-in replacement for SPiiPlusCMba and SPiiPlusCMhp motion controllers, the CMxa is supported by ACS Motion Control’s SPiiPlus ADK Suite, which contains many advanced servo tuning and application development tools.


Notable product features include advanced PIV cascaded control loop, cascaded dual loop control, disturbance rejection control, and STO and SS1 safety functionalities.


Optional features include ACS Motion Control’s ServoBoost control algorithm for dynamic disturbance compensation, MotionBoost algorithm for minimizing motion induced vibration, and LearningBoost algorithm for minimizing cyclic motion error.

  • Controller axes: 4, 8, 16, 32, or 64
  • Host PC/PLC/PAC communication: TCP/IP, Ethernet/IP, Modbus, RS-232
  • Max EtherCAT cycle rate: 5kHz
  • Drive axes: 1, 2 or 3
  • Drive supply input: 85 to 265 Vac
  • Bus voltage: Vin x 1.414
  • Max current output per axis: 15/30 A
  • Encoder channels: Max 4 any combination (4 AqB, 3 SinCos, 3 Absolute)
  • Proprietary ACS feature options: Flexible configuration