Omron launches 1S series AC servo system*1 with PLe/SIL3 safety function, providing the highest level of safety

Omron Corporation (Headquarters: Shimogyo-ku, Kyoto. President and CEO: Yoshihito Yamada) announced the global release of the new 1S series AC servo system with safety functions in December. The 1S series adds new models to help achieve safer manufacturing environments and higher productivity in digital, food, pharmaceutical, cosmetics and other industries.

c1201_1.png1S series AC servo system equipped with safety functions

While manufacturing labor is hard to come by today, coordination between humans and machines is accelerating and there is a growing need to improve the productivity and safety of manufacturing equipment. Due to short product life cycles, manufacturers are under pressure to quickly set up manufacturing equipment. However, they also present engineering difficulties, as setting up safety equipment requires skilled equipment designers as well as software packages for safety design and motion design. In addition, robots using communication servos are increasingly used to maintain social distance between workers as a preventive measure against infections, including COVID-19. Workers now need to work in harmony with machines and safely.

The new AC servo system with safety features provides eight safety functions to operate the machine safely. All functions are PLe/SIL3*2 compliant, providing the highest level of safety to protect operators, machinery and products while increasing the productivity of production equipment. For example, in the event of an emergency stop, the synchronous motor decelerates to a stop and monitors the standstill state to avoid product and mechanical failures and smoothly restart the production equipment. In addition, combined with the automation software Sysmac Studio, it provides an integrated development environment from design to debugging, making programming easier. The software helps improve device performance and optimize debugging tasks. In production workshops where people and machines work together, machines run at safe speeds in the machine working area in response to the approach of people, ensuring the safety of operators while improving production efficiency.

Omron has proposed the strategic concept of “innovative automation”, which consists of three innovations or “i”: “integration” (controlling evolution), “wisdom” (developing wisdom through ICT) and “interaction” (new harmony between people) composition. By using the new 1S series with safety functions, Omron is accelerating “innovative automation” with its customer companies, contributing to improving safety and productivity at manufacturing sites and increasing efficiency from equipment debugging to production.

AC servo system with safety functions


  1. Higher productivity and a safer environment
    Advanced motion safety features enable machines to keep running, improving maintenance and changeover efficiency while protecting operator, product and machine safety.
  2. Highest level of security
    The eight sports safety functions comply with the PLe/SIL3 standards of ISO 13849-1, IEC 61508 and IEC 62061.
  3. Debugging is more efficient
    The automation software Sysmac Studio enables the sequential design and simulation of standard and safety controls. Debugging time for servo systems and safety systems can be reduced by approximately 35%*3.
  4. Flexible device design
    The cable connecting the servo drive and servo motor uses One Cable technology. Power supply, encoder and brake are integrated into a pre-assembled cable. The rotary connector of the servo motor allows the cable exit direction to be changed. These features increase design flexibility by helping to connect and disconnect cables during equipment layout changes and maintenance.

Eight sports safety features
[Behavior of motion safety functions illustrated by speed-time graphs]

Main specifications

Servo drive R88D-1SANⅡ-ECT Servo motor R88M-1ALⅡ/1AMⅡ
c1201_3.png c1201_4.png
voltage 200VAC, 400VAC input
communication EtherCAT communication
control method Position control, speed control, torque control
security function STO, SS1, SS2, SOS, SLS, SLP, SDI, SBC
Motor capacity 200 watts equals 3 kilowatts
Rated speed 1,500 rpm, 3,000 rpm
Encoder Batteryless absolute encoder
Protection level IP67 rating

*1. The servo system consists of a servo driver and a servo motor, which controls the operation of the machine or equipment at high speed and with high precision according to the target position, speed and torque.
*2. The performance level (PL) of the safety function is determined according to ISO 13849-1, and the safety integrity level (SIL) is determined according to IEC 61508 and IEC 62061.
*3. Based on Omron’s November 2020 survey.

Sysmac is a trademark or registered trademark of Omron Corporation in Japan and other countries for Omron factory automation products.
EtherCAT® and Safety over EtherCAT® are registered trademarks and patented technologies licensed by Beckhoff Automation GmbH in Germany.
Other company names and product names in this document are the trademarks or registered trademarks of their respective companies.

About “Innovation-Automation”
Recently, Omron has proposed a manufacturing innovation concept called “Innovation-Automation.” Through these innovations in the field of automation, Omron aims to significantly improve productivity at manufacturing sites, thereby achieving high value-added manufacturing. Through the first “i”, “Integration” (Control Evolution), Omron will pursue advanced automation control technology so that virtually any operator, even an inexperienced one, can effortlessly accomplish tasks that previously required experience Rich workers’ professional skills for the job. The second “i” is “intelligent” (developing intelligence through ICT), and Omron is committed to creating continuously evolving equipment and production lines. By using various control devices and artificial intelligence (AI), machines can learn through experience and keep themselves in optimal condition. For the third “i” “interaction” (new harmony between humans and machines), Omron pursues the development of a new harmonious relationship between human operators and machines; when machines work together in the same workspace, they will be able to Recognize human thoughts and actions to assist human operators in a way that only Omron, a specialist control equipment manufacturer with intimate knowledge of the production floor, can achieve.

About Omron Corporation
With “sensing and control + thinking” as its core technology, Omron is a global leader in the field of automation. Omron’s business areas range from industrial automation and electronic components to social systems, healthcare and environmental solutions. Founded in 1933, Omron has approximately 30,000 employees worldwide and is committed to providing products and services in approximately 120 countries and regions. For more information, please visit the Omron website: http://www.omron.com/

Contact information (media):
Brand Communication Department
Omron Corporation
Phone: +81-75-344-7175
Contact information (product information):
Drive Division and Product Division.
industrial automation company,
Omron Corporation
Phone: +81-75-344-7233

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