soloist-familyAerotech’s Soloist® is a single-axis servo controller that combines a power supply, amplifier and position controller in a single package. The Soloist can control up to five tasks simultaneously, as well as handle variables and manage I/O, making it well-suited for demanding production applications. The Soloist has high-speed position latch inputs and advanced data logging capabilities, making it ideal for laboratory and test instrument applications.

  • Positioning control for brushless, DC brush-type or stepping motors
  • Available in models up to 150 A peak current
  • Ethernet, USB or RS-232 connectivity
Model Peak Current Control Supply Type Motor Style Additional information
Soloist HPe Up to 200 A 85-240 VAC; 50/60 Hz PWM Brush, Brushless, Stepper View source
Soloist CP Up to 30 A 85-240 VAC; 50/60 Hz PWM Brush, Brushless, Stepper View source
Soloist MP 10 A 24-80 VDC PWM Brush, Brushless, Stepper View source
Soloist HLe Up to 20 A 85-240 VAC; 50/60 Hz Linear Brush, Brushless, Stepper, Voice Coil View source
Soloist CL 10 A 85-240; 50/60 Hz Linear Brush, Brushless, Stepper, Voice Coil View source
Soloist ML 10 A 18-36 VDC Linear Brush, Brushless, Stepper, Voice Coil View source


The Soloist has three PWM form factors (HPe, CP, MP). The Soloist MP offers the same advanced software as the CP but in a smaller package designed for OEMs that can supply bus power from existing power supplies. The Soloist HPe can be used for larger systems requiring up to 150 A peak current.

The Soloist has three linear-drive form factors (HLe, CL, ML) that are ideal for higher precision applications. The Soloist CL with linear power stage is available for low noise and ultra-high-performance applications. This controller is ideal for high bandwidth requirements and maintains superb linearity and zero crossover distortion. For example, applications that have many motion reversals and that require high position accuracy will benefit from using the Soloist CL. The Soloist HLe provides the same ultra-high linear amplifier performance as the CL, but also includes higher peak and continuous current output along with additional features and options. The Soloist ML provides a very small package linear power stage for high position-accuracy applications.

The IDE software shares a common theme with other Aerotech software products providing the user with a clear, easy-to-use platform. This Windows®-based interface provides powerful diagnostic, development and analysis tools for OEMs and end-users alike.

Allen-Bradley Interface

Combine proven PLC with proven motion control for easier integration, startup and maintenance of medium- and high-end automation projects. The Aerotech EtherNet/IP™ interface enables AB PLCs (MicroLogix, CompactLogix™ or ControlLogix) to be integrated directly with the Soloist. Motion can be directly programmed in the RSLogix 5000 environment or separate programs can be written on the controller and triggered from the AB PLC. Aerotech has two interfaces: ASCII and Register. Choose the PLC, motion controller and interface that best fits your application needs.

Total Solution

Soloist controllers are fully tested and ready to run right out of the box. Aerotech can integrate the Soloist into a complete motion system, removing the burden of parameter setup and axis tuning.

Practical Power

Each series is capable of driving a wide range of motors including brushless, DC servo and microsteppers. Brushless motors are sinusoidally commutated to minimize torque ripple. Using a digital servo loop with feedforward, the Soloist tightly tracks velocity and position trajectories with virtually zero error. On-board autotuning and built-in calculators make servo tuning simple.

Variables, Math and More

With variables and math capability, one program can be used to produce a variety of parts by simply prompting the user for new application data.

Application Versatility

The Soloist has other built-in features such as axis calibration and backlash compensation, so you can maximize your machine’s accuracy and precision. The “user units” feature makes it easy to customize the Soloist to your specific machine, allowing custom units for both linear and rotary applications.

The controller is equipped with dual encoder inputs so you can tackle master-slave applications or achieve higher accuracies with dual-loop control. Precise registration-based moves are also possible because of the fast 0.1 microsecond acknowledge time. The Soloist easily handles complex functions such as output-on-the-fly and velocity profiling.

Sololist Applications

The Soloist is used in a variety of high performance motion applications on the production floor and in the R&D lab. Below are a few examples of applications using the Ensemble platform.

  • Feed to Length
  • Flying Cutoff
  • Flying Shear
  • In-line Bottle Filler
  • Labeling Applications
  • Lane Diverter
  • Package Sorter
  • Rotary Index Table
  • Rotary Knife

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