Precision Motion Controllers and Drivers for Positioning Systems
Servo Motors, Stepper Motors, Brushless Motors, Linear Motors and Piezo Motors
PI provides a large variety of hardware & software solutions for high precision motion control. Our portfolio spans from integrated compact single axis servo controllers / drivers, such as popular Mercury-class motion controllers, to complex multi-axis systems for parallel-kinematics positioners, such as hexapods.
Examples of Custom Motion Systems / Precision Automation
ACS Advanced Industrial Controllers
PI recently acquired the majority shares of ACS Motion Control. Together with ACS, a plethora of controllers and drivers for virtually any type of motor drive can be offered: three phase, DC, brushless, stepper, ultrasonic, piezo-stick-slip, piezo-walk, linear-servo, high-speed voice coil, and, of course, piezo controllers for flexure-guided precision nano-positioners.
OEM cards, rack-mount solutions and custom motion controllers with hundreds of axes are available.

C-885 PIMotionMaster Flexible Multi-Axis Motion Controller
- Hosts modules for different drive technologies: servo motors, piezo step motors, ultrasonic motors
- Scalable – grows with the application
- Plug-and-play installation
- Easy configuration and start-up
- Space and cost-saving

C-663 Mercury™ Step Controller
1-Axis, Networkable, for Stepper-Motors
- High performance stepper motion control at low cost
- 2,048 microstep resolution for very smooth motion
- Open loop and closed loop operation
- Network capability for multi-axis applications
- Compatible and networkable with Mercury™ controllers
- Joystick port for manual control
Precision Motion Controllers for Closed-Loop Positioning Systems
with Brushless (BLDC), Brushed, 3-Phase, and Voice Coil Motors

C-863 Mercury Servo Controller
For DC-Motors, Network Feature
- High performance precision motion control at low Cost
- 20 MHz encoder input for high speed & resolution
- Macro programmable stand-alone functionality
- Integrated servo power amp supplies up to 30 W
- Data recorder
- Network capability for multi-axis applications

C-884 PID Precision Servo Motor Controller
Cost Efficient, 6-Axis / 4-Axis
- Position feedback: incremental and absolute-measuring encoders (no referencing)
- Motor types: brushless servo motors and traditional DC motors
- Trapezoidal velocity profile
- Point-to-point motion, vector motion, user-definable trajectories
- Powerful Python macro command language, nonvolatile storage for stand-alone operation
- Data recorder for detailed motion system analysis

C-891 Compact Motion Controller for 3-Phase Brushless Motors
Linear and Torque Motors
- Designed for sine-commuted 3-phase linear and rotary motors
- Automatic detection of the motor phase
- 20 kHz control bandwidth
- Digital inputs and outputs
- A/B digital or analog (sin/cos) encoder signals
- BiSS interface for absolute encoders

C-413 / C-414 Compact Voice Coil Motion Controller
1 & 2 Axis, Optional Force Control
- 1 or 2 motor channels
- Up to 4 sensor channels for 2 force and 2 position sensors each
- Servo update rate to 10kHz
- TCP/IP, USB, SPI interface
- A/B digital or analog (sin/cos) encoder signals
- Extensive software support
These high performance controllers feature state of the art ACS SPiiPlusEC motion control modules and EtherCAT® master, and includes ServoBoost™ for up to eight axes of motion. ServoBoost™ provides better, more consistent servo performance that is insensitive to noise or (load) changes in the system.

A-824/6/8 PIglide Motion Controller
High Power: 4, 6 & 8 Motion Axes
- Fully integrated closed-loop servo, amplifier module & power supplies
- 2000 W continuous, 3900 W peak
- 3-Phase BLDC / voice coil / DC
- Quiet PWM drives
- Sine/cosine and BiSS-C encoders
- 20A peak output current/axis

A-811/2/4 PIglide Motion Controller
Compact: 1, 2 & 4 Motion Axes
- Fully integrated closed-loop servo, amplifier module & power supplies
- 600W power supply
- 3-phase BLDC / voice coil / DC
- Quiet PWM drives
- Sine/cosine and BiSS-C encoders
- 10A Peak output current/axis

A-811 PIglide Motion Controller
1-Axis Benchtop Version
- Fully-integrated servo-controller with drive
- Compact benchtop device, external AC/DC-P/S
- For 3-phase / voice coil / DC motors
- Quiet PWM drives
- Sine/cosine and BiSS-C encoders
- Functional safety: STO (Safe Torque Off)

Motion Controller Adapts to Different Loads in Real Time: ServoBoost™ from ACS
Watch Video
An advanced algorithm called ServoBoost™ in ACS motion controllers automatically adapts the servo settings to load changes in real time.

C-877 Compact Low Cost Controller
For Ultrasonic Motors
- Low cost single axis version
- Proprietary PID servo control for ultrasonic direct drive motors with dynamic parameter switching
- Data recorder
- Macro programming language, for automation and stand-alone operation

C-867 Closed-Loop Controller / Driver
For High-Speed Ultrasonic Piezo Linear Motors
- Optimized for PILine® ultrasonic piezo linear motors
- High-bandwidth encoder inputs allow high speed and resolution
- PID servo motion control with dynamic parameter switching
- Integrated piezo motor power driver
- USB, RS-232 and analog interfaces (e.g. for joystick)
- 4 + 4 programmable TTL-I/Os for flexible automation

E-873 Servo Controller
For Closed-Loop Piezo-Ratchet Actuators / Q-Motion Stages
- Integrated power amplifier and voltage generator for piezo inertia drives
- TCP/IP, USB, RS-232
- Extensive software support: LabVIEW, MATLAB, C / C++ / C# / VB.NET, Python
- Optional joystick for manual operation

E-872 Stick-Slip Piezo Driver/Controller
For Open-Loop Piezo-Ratchet Actuators / Q-Motion Stages
- Integrated power amplifier and voltage generator for piezo inertia drives
- OEM driver available
- Serial control of up to 4 stages and actuators by one unit
- TCP/IP, USB, USB for joystick, digitial I/O

E-712.1AM Precision Motion Controller
For NEXLINE® Nanopositioning Linear Motors
- Special motion control algorithms for NEXLINE®nanopositioning linear drives
- Ultra-Fast servo: 50kHz update rate
- 32-bit digital filters
- Highly stable 20-bit D/A converter
- Fully programmable low-pass and notch filters
- Non-volatile user settings and last-position data
- PI General Command Set compatible

E-861 Networkable Motion Controller/Driver
For NEXACT® Linear Drive Nano-Positioners
- Precision motion control for NEXACT® drives and positioning systems
- Complete system with controller, integrated power amplifiers and software
- Open-loop operation, or closed-loop with linear encoder
- High performance at low cost
- Daisy-chain networking for multi-axis operation
- Non-volatile macro storage for stand-alone functionality with autostart macro

E-862 Low-Cost NEXACT® Piezo Motor Driver
- For NEXACT® piezo motor drives & nano positioning Stages
- Combined step generator and power amplifier
- Cost-effective design
- Interface for automation, joystick for manual operation