Robot Safety Standards

Last updated: 2024-07-05

Robot safety standards are critical guidelines that govern the design, implementation, and operation of robotic systems to ensure safety for operators and surrounding personnel. In the United States, several key standards dictate how robots should be constructed and operated, focusing on risk assessment, safety requirements, and compliance with legal regulations.

Summary

This article explores the primary safety standards for industrial robots, including ISO 10218, ISO/TS 15066, ANSI/RIA R15.06-2025, and OSHA regulations. It emphasizes practical implementation strategies and the importance of risk assessments to ensure compliance and safety in robotic systems.

What are the primary international and U.S. safety standards for industrial robots?

The two most prominent international standards are ISO 10218-1 and ISO 10218-2.

• ISO 10218-1:2025 focuses on safety requirements for industrial robots, addressing the design, risk reduction measures, and user information. It is geared towards manufacturers and provides a framework for reducing risks associated with robotic systems.

• ISO 10218-2:2025 complements the first part by detailing safety requirements for robot systems and their integration, including end-effectors and related equipment. This standard emphasizes the importance of systematic integration to enhance safety.

In the U.S., the ANSI/RIA R15.06-2025 standard provides updated guidelines for industrial robot safety, aligning closely with the ISO standards while catering to specific U.S. regulatory needs. These standards collectively guide manufacturers in building safer robots and systems.

How do ISO 10218-1 and ISO 10218-2 differ in their safety requirements?

The main distinction lies in their focus areas. ISO 10218-1 emphasizes the safety of the robot itself, specifying design requirements to mitigate risks and ensure adequate safety information is provided to users. For instance, it might require the implementation of emergency stop functions and safety interlocks.

Conversely, ISO 10218-2 addresses the broader context of robot systems, including the integration of various components such as sensors, controllers, and end-effectors. It sets requirements for ensuring that all parts of the system work together safely. A practical example is ensuring that when a robot is interfacing with humans, it can detect their presence and adjust its operation accordingly to prevent accidents.

What specific safety requirements does ISO/TS 15066 impose on collaborative robots?

ISO/TS 15066:2016 introduces specific safety requirements for collaborative robots (cobots), which are designed to work alongside human operators. This standard outlines operational modes and maximum allowable contact forces to ensure safety during interaction.

For example, it defines safety-rated monitored stop, hand guiding, speed and separation monitoring, and power and force limiting as operational modes that allow for safe human-robot collaboration. A common mistake in implementing these requirements is underestimating the importance of defining safe interaction zones, which can lead to unsafe conditions if not properly managed.

How does the revised ANSI/RIA R15.06-2025 standard impact robot safety protocols?

The revised ANSI/RIA R15.06-2025 standard updates various safety protocols to reflect advancements in robotic technology and operational practices. Key changes include enhanced requirements for risk assessments and more defined guidelines for collaborative applications.

For organizations, this means revisiting their safety protocols to ensure compliance with the new standard. A practical approach is to implement regular training sessions for employees focusing on the updated safety measures and conducting comprehensive risk assessments to identify any new hazards introduced by changes in operational procedures.

What are the key components of a risk assessment for industrial robot systems?

Conducting a thorough risk assessment involves several key components:

1. Hazard Identification: Determine potential hazards associated with the robotic system, which can include mechanical failures, electrical risks, or human interaction errors.

2. Risk Analysis: Evaluate the likelihood and potential impact of identified hazards. This process often involves categorizing risks based on severity and probability.

3. Risk Evaluation: Compare the estimated risks against predefined safety criteria to determine if risks are acceptable.

4. Risk Mitigation: Implement strategies to reduce identified risks, which may involve engineering controls, safety devices, or modifying work practices.

A common mistake in risk assessments is failing to involve all relevant stakeholders, which can lead to an incomplete understanding of potential hazards.

How do OSHA regulations relate to robot safety in the workplace?

The Occupational Safety and Health Administration (OSHA) mandates maintaining a hazard-free workplace under the General Duty Clause. This includes ensuring that robotic systems do not pose safety risks to operators or other employees. Violations can lead to substantial fines, starting at $16,131 per serious violation.

Organizations must align their robot safety protocols with OSHA regulations by conducting regular safety audits and training employees on safety practices related to robotic systems. For example, integrating OSHA guidelines into the design and operation of robots can help prevent accidents and ensure compliance.

What are the consequences of non-compliance with robot safety standards?

Failing to comply with robot safety standards can result in severe consequences, including:

• Increased Liability: Companies may face legal liabilities in the event of accidents or injuries linked to non-compliant robots.

• Fines and Penalties: Regulatory bodies can impose significant fines for safety violations, which can disrupt operations and affect the bottom line.

• Reputation Damage: Non-compliance can tarnish a company’s reputation, leading to loss of customer trust and potential business opportunities.

• Operational Delays: Non-compliance often leads to delays in product launches or operational adjustments while rectifying safety issues.

To mitigate these risks, organizations should prioritize compliance as part of their operational strategy, integrating safety standards into their workflows and training programs.

What we recommend

For effective robot safety compliance, organizations should adopt a systematic approach that includes:

• Regularly reviewing and updating safety protocols to align with the latest standards.
• Conducting comprehensive risk assessments that involve cross-functional teams.
• Implementing training programs tailored to employees' roles in relation to robotic systems.
• Utilizing compliance readiness tools, such as those offered by EmetGrid, to streamline standards mapping and evidence tracking.

By prioritizing robot safety standards, organizations can not only ensure compliance but also foster a safer working environment for all employees.