Kollmorgen S20260-SRS

Product Introduction
The S20260-SRS is a compact, high-performance digital servo drive from Kollmorgen’s S200 series. It was among the first all-digital industrial drives to achieve an 800 Hz speed loop bandwidth, delivering exceptional dynamic response and system throughput. The S20260 model operates from 120/240 VAC input with a rated continuous output current of 1.5 A RMS and a peak current

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Description

Kollmorgen S20260-SRS

Technical Specifications

  • Rated Supply Voltage: 0 to 264 VAC
  • Control Logic Supply Voltage: 85 to 265 VAC
  • Rated Output Current (RMS): 6 A
  • Peak Output Current (RMS): 18 A
  • Peak Time: 3 seconds
  • Current Loop Bandwidth: 5 kHz
  • Velocity Loop Bandwidth: 800 Hz
  • Update Rate: 1.25 MHz
  • Feedback Resolution: 24-bit
  • Communication: CANopen fieldbus interface

Functional Features

  • CANopen Network Integration: Built-in CANopen slave interface for distributed motion control over standard industrial fieldbus.
  • 800 Hz Speed Loop Bandwidth: Fast dynamic response for high-throughput applications.
  • 5 kHz Current Loop Bandwidth: High-bandwidth current regulation for precise torque control.
  • 24-Bit Feedback Resolution: Sub-micron positioning accuracy with smooth velocity profiles.
  • Intelligent Feedback Device: Electronic motor nameplate for plug-and-play commissioning.
  • Standard Control Modes: Torque, speed, electronic gearing, 18-bit analog reference input, and encoder equivalent output.
  • Comprehensive Protection: Over-current, over-voltage, under-voltage, and over-temperature protection.

Application Scenarios

  • Multi-Axis CANopen Systems: Distributed servo drives on a shared CANopen bus for synchronized motion.
  • Packaging Machinery: Synchronized filling, sealing, and carton forming on CANopen networks.
  • Material Handling: Conveyor control and positioning with CANopen-based PLC integration.
  • Machine Tools: Feed axis control with CANopen motion coordination.
  • Automated Assembly: Multi-station systems requiring fieldbus-based drive communication.

Performance Parameters

  • Speed Loop Bandwidth: 800 Hz.
  • Current Loop Bandwidth: 5 kHz.
  • Feedback Resolution: 24-bit.
  • Peak Current: 3x continuous rating (18 A peak for 3 seconds).
  • Update Rate: 1.25 MHz.

Material Composition
Compact metal enclosure with integrated heat sink, high-performance IGBT power modules, DSP-based control electronics, CANopen transceiver, and optically isolated I/O circuits.

Structural Features

  • Compact Form Factor: Small footprint for cabinet or point-of-use installation.
  • CANopen Connector: Dedicated fieldbus connection for network integration.
  • Locking Connectors: Self-locking motor and power connectors.
  • Optically Isolated I/O: Full galvanic isolation for noise immunity.

Working Principle
The S20660-CNS converts AC input power to a regulated DC bus and uses high-bandwidth digital control loops (5 kHz current, 800 Hz velocity) to precisely regulate motor torque and speed. The CANopen interface receives motion commands from a master controller over the fieldbus, executing CiA 402 drive profile commands for position, velocity, and torque modes. The intelligent feedback device provides automatic motor identification and tuning, enabling rapid commissioning.