The Digitax ST-P full-function servo drive delivers sophisticated multi-axis motion control in a compact package. The motion and communications are configured within a flexible IEC61131-3 software development environment using PLCopen function blocks. Fieldbus, Ethernet and I/O connectivity enable interfacing with other automation components and Intellectual Property protection ensures that your valuable knowledge remains secure.

Applications include: Printing, packaging, synchronizing conveyors, flying shear, rotary knife.

Three option modules in each drive

Each Unidrive SP can accept up to three SM option modules to allow the drive to be customized to your servo applications, option modules allow motion control, additional encoder feedback and I/O to integrated.

Onboard motion and positioning

Control Techniques’ SM-Applications and SM-EZ Motion option modules enable high performance motion / positioning controllers to be integrated within the drive.  The position control loops operate at high speed and are synchronized to the drives internal current and speed loop, eliminating delays, which maximizes control performance.

Advanced registration

SM-Register is designed to provide a flexible, high performance solution for programmable motion requiring high speed registration features. It is ideal for applications such as printing, packaging and cutting machinery.

Connectivity to servo networks

SM option modules allow Unidrive SP to connect to a wide range of high speed servo Fieldbus and Ethernet networks for centralized motion control. Networks include EtherCAT, SERCOS, Profibus and CANopen.

Integrated servo features

Unidrive SP has integrated features that make the product ideal for high performance servo applications:

• Integrated universal encoder interface, able to accept a wide range of encoder types, including incremental, high resolution SinCos and absolute SSI encoders. Additional encoder interfaces can be added through option modules
• On Size 0, 1 and 2, the drive has space for an optional integrated braking resistor with thermal protection. the rating is suitable for the majority of servo applications
• High resolution analogue input for precision control  – Bipolar differential analog, 16bit plus sign, 250uS update

On-board Safety

Unidrive SP’s Safe Torque Off (STO) is a functional safety feature which complies with EN/IEC 61800-5-2 SIL 3 and is built in to the drive as standard. When the Safe Torque Off function is active, the drive output is disabled with a high degree of integrity.

• Certified by BGIA and TUV
• Allows the drive to become part of the machine safety system
• Reduces user cost in machine safety controller designs that must comply with EN/IEC 62061 up to SIL 3, EN ISO 13849-1 up to PL e, EN 954-1 category 3 and EN 81-1 for elevators
• Eliminates one or more power contactors
• Eliminates feedback checking arrangement
• Drive can be powered continuously

Safe Torque Off can form part of an EN 954-1 Category 4 system by adding additional control circuitry.

Maximize throughput with superior motor control

• High bandwidth motor control algorithm for closed-loop induction, permanent magnet and servo motors – 3300 Hz current-loop bandwidth and 250 Hz speed-loop bandwidth
• Flexible speed and position feedback interface supports a wide range of feedback technologies from robust resolvers to high resolution encoders.
  • Up to three encoder channels simultaneously e.g. 1 feedback encoder, 1 reference encoder and 1 simulated output
  • MCi modules can eliminate the need for external PLCs and motion controllers
  • Simulated encoder output can provide position reference for CAMs, digital lock and electronic gearbox applications.

Optimize system performance with onboard Advanced Motor Controller

• M700 incorporates an Advanced Motion Controller capable of controlling 1.5 axes. The motion functions are carried out ‘on the drive’ so that system performance is maximized.

Design flexible centralized and decentralized control systems

• MCi modules can be added to execute larger programs for advanced  system control capability.
• Onboard PLC for logic programs
• Machine Control Studio is an industry standard IEC61131-3 programming environment for efficient system design and configuration
• Integrated dual port Ethernet switch provides simple connectivity using standard connections
• Onboard real-time Ethernet (IEEE 1588 V2) uses RTMoE (Real Time Motion over Ethernet) to provide fast communication and accurate axis synchronization
• Three System Integration ports are available to fit additional fieldbus, position feedback and I/O options

Conform to safety standards, maximize uptime and reduce costs by integrating directly with safety systems

• Unidrive M700 has an integrated Safe Torque Off (STO) input and can accommodate an SI-Safety module for safe motion functions

Minimize downtime and system setup time with advanced keypad options

• Informative, multi-language, 3 line display aids setup and provides diagnostic information.
• 4 navigation buttons facilitate intuitive navigation and programming
• Keypad options available:
  • CI-Keypad LCD – Drive mounted LCD keypad
  • Remote-Keypad – IP66 (NEMA 4) rapid panel mount (1 x 32mm dia hole)
  • No Keypad (Standard) – Control/programming performed by PC or fieldbus

Reduced system costs by directly integrating with applications

• M400 incorporates an onboard PLC which can execute Machine Control Studio​ (IEC61131-3) programs for logic and sequencing with real-time tasks – removing the need for additional PLC’s
• Fit an SI module to add a fieldbus communications option or additional I/O

Improve throughput with advanced open-loop motor control algorithms

• Rotor Flux Control (RFC-A) gives maximum stability and control of induction motors at all powers
• 180% motor overload suitable for heavy industrial machinery applications
• Precise frequency following is possible form an encoder or frequency/direction inputs

Conform to safety standards, maximize uptime and reduce costs by integrating directly with safety systems

• M400 has integrated dual STO inputs for SIL3 / PLe conformity, eliminating the need for external safety components.

Conform to safety standards, maximize uptime and reduce costs by intergrating directly with safety systems

• Unidrive M300 has integrated dual STO inputs for SIL3, PLe conformity, eliminating the need for external safety components.

Improve throughput with advanced open-loop motor control algorithms

• Rotor Flux Control (RFC-A) gives maximum stability and control of induction motors at all powers.
• 180% motor overload suitable for heavy industrial machinery applications.

Flexible system integration with SI communications options

• M300’s SI interface enables integration with a wide range of available industry standards fieldbuses and I/O

Install and configure quickly and easily

• Simple fixed LED keypad
• Useful parameter guide located on the front of the drive
• Use Unidrive M Connect or an SD card with the AI-Backup Adaptor to clone and transfer parameter sets
• DIN rail mounting is supported below 2 hp (1.5 kW)