Introduction: Why the ISO 13849-1 standard is important for production safety
The ISO 13849-1 standard is critical for ensuring security in industrial systems, especially in production environments. It sets requirements for the safe operation of electromechanical systems, including the calculation of the Performance Level (PL) for a safe purpose. Correct implementation of this standard not only reduces risks, but also ensures compliance with legislation, including the requirements of the Ukrainian State Service for Energy and Industrial Safety (UkrSEPRO).
Application range and production requirements
The ISO 13849-1 standard applies to the safe architecture of systems used in industrial installations, including control systems, sensors, actuators and safe logic. It requires that each safety objective meet a specific performance level (PL), which defines the degree of reliability of the system.
Basic requirements and deadlines
| Indicator | Meaning | Deadline |
|---|---|---|
| The minimum level of execution of PL | Plc | According to the project |
| Mean Time Between Failure (MTBF) Requirements | ≥ 100,000 hours | During system installation |
| Requirements for secure architecture | Using an architecture with an executive device | During system installation |
| Environmental requirements | Temperature range -20°C to +60°C | During system installation |
Impact on MRO operations
Implementation of the ISO 13849-1 standard changes the processes of maintenance and repair work. Service technicians must perform regular inspections, maintain safety records, and use certified components. It is important that every replacement of components, especially actuators, meets the requirements of the standard.
Requirements for components and certification
The components included in the safety logic must be certified according to ISO 13849-1. This includes actuators, sensors, control devices and safety logic. Certification to the ISO 13849-1 standard establishes that a component meets performance and safety requirements.
A practical checklist for safety managers
- Check that all components comply with the ISO 13849-1. standard
- Define a performance level (PL) for each safety objective.
- Keep records of mean time between failures (MTBF).
- Perform regular security architecture audits.
- Log in to the remote security control system.
- Choose certified components for actuators and sensors.
- Establish procedures for calculating PL.
- Update the security documentation according to the standard.
- Check compliance with UkrSEPRO requirements.
- Perform periodic security audits.
- Establish procedures to restore security systems.
- Keep a log of security changes.
- Perform failure cause analysis.
- Make a declaration of compliance with the standard ISO 13849-1.
- Perform a PL calculation for each component.
- Establish procedures to comply with the ISO 13849-1. standard
- Check compliance with the ISO 13849-1. standard
- Maintain safety documentation in accordance with the standard.
- Comply with ISO 13849-1.
Common compliance issues
Auditors often find the following compliance issues with the ISO 13849-1 standard:
- Insufficient performance level (PL) of the safety objective.
- Lack of documentation on mean time between failures (MTBF).
- Security architecture mismatch.
- Use of unprotected components.
- Lack of a procedure for calculating PL.
- Insufficient environmental control.
Sanctions and liability for violations
Violation of the ISO 13849-1 standard can result in various sanctions, including financial penalties, loss of insurance, liability for destruction of production and liability for violations of legislation. For example, fines can range from 10,000 to 50,000 hryvnias, depending on the severity of the violation. Also, guilty persons may be responsible for the destruction of production, especially if there are injuries or failures.
Conclusion: choosing certified components for safety
To ensure compliance with the ISO 13849-1 standard and production safety, you should choose certified components from reliable suppliers. UNITEC-D GmbH manufactures and supplies components that meet the requirements of the ISO 13849-1 standard and are also certified according to CE and UkrSEPRO. Consult the UNITEC-D E-Catalog for certified safety and compliance components.
