omron industrial automation products

Omron AC Servo System 1S-series

Sysmac general-purpose servo

Ratings: 230 VAC from 50 W to 1.5 kW, 400 VAC from 400 W to 15 kW

  • 23-bit resolution encoder
  • Fast and secure screw-less push-in in all connectors
  • Pluggable connectors for easy pre-wiring and system maintenance
  • Direct wiring of I/O signals
  • Embedded relay for direct motor brake control
  • Improved loop control for overshoot and quick setting time
  • Safety function built-in:
    • Network Safe Torque Off: PLd (EN ISO 13849-1), SIL2 (IEC 61508)
    • Hardwired Safe Torque Off: PLe (EN ISO 13849-1), SIL3 (IEC 61508)
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Improved machine design. Increased machine productivity

Designed to meet the machine requirements, the 1S servo technology optimizes the full cycle, through the machine design, installation and commissioning tasks and finally to the maintenance once in production. In addition to the traditional motion solution, the 1S servo offers high resolution multi-turn encoder without battery backup, safety network built-in and improved loop control allowing accurate and higher machine productivity.

Servo features

  • Power range from 50 W to 15 kW
  • 23 bit high-resolution encoder
  • Battery-free absolute multi-turn encoder
  • Improved loop control for low overshoot and quick settling time
  • Safety function built-in:
    • Hardwired Safe Torque Off:
      EN ISO 13849-1(Cat.3 PLe), EN61508(SIL3), EN62061(SIL3), EN61800-5-2(STO)
    • Safety over EtherCAT(FSoE):
      EN ISO 13849-1(Cat.3 PLd), EN61508(SIL2), EN62061(SIL2), EN61800-5-2(STO)

Simplified machine design and maintenance

  • No battery, no maintenance
  • No need for homing sequence improving machine uptime
  • 23 bit high-resolution encoder as standard
  • Absolute multi-turn encoder design without mechanics: 16 bits, 65536 turns
  • Compact and smaller motor size

125 μs system cycle

  • Faster machine speed keeping same accuracy
  • Accurate profile generation in the controller
  • The 23 bit high resolution encoder in combination with the improved loop control provide an accurate following profile


Safety control via EtherCAT

  • Simplified safety installation
  • Reduction of safety devices
  • Safety function built-in: Fail Safe over EtherCAT (FSoE) Safe Torque Off
  • Safety approval: EN ISO 13849-1(Cat.3 PLd), EN61508(SIL2), EN62061(SIL2), EN61800-5-2(STO)
  • Troubleshooter integrated with Sysmac Studio