1069617

Overview

The SICK M20Z-02550A220 is a safety light curtain belonging to the M2000 series, designed for personnel protection in industrial environments. It operates as Type 2 according to IEC 61496-1 and meets Category 2 under EN ISO 13849. The device achieves a Safety Integrity Level (SIL) of 1 per IEC 61508 and offers a Performance Level (PL) of C. Key technical parameters include an internal test rate of 13/s, a maximum demand rate of 8 min⁻¹, and a mean probability of dangerous failure per hour (PFHd) of 6.6x10⁻⁹. The mission time is rated at 20 years, ensuring reliable operation with at least one OSSD in the off state during faults.

Feature Summary

• Provides personnel protection through safety-related monitoring compliant with international standards.
• Features a robust design suitable for demanding industrial applications with high reliability.
• Ensures safe state by maintaining output signal off-state upon detection of faults.

Applications

• Personnel protection at press machines
• Safety guarding for robotic work cells
• Protection zones around automated assembly lines

Procurement Notes

Verify that the specific ordering number matches the required resolution and protective height for your application. Confirm compatibility with existing M2000 receivers or controllers. Ensure the installation environment does not exceed the specified maximum demand rate. Check for any necessary accessories such as mounting brackets or cable sets that are not included in the base unit package.

Selection Notes

Select this model based on the requirement for PL C and SIL 1 performance levels. Consider the internal test rate of 13/s when designing external test routines to avoid exceeding limits. Evaluate the 20-year mission time against the expected lifespan of the machinery. Ensure the protective field resolution meets the safety distance calculations defined by relevant machine safety standards.

Part Context

This component is part of the SICK M2000 series of safety light curtains. The series is known for its flexibility and integration capabilities within industrial automation systems. The M20Z designation indicates a specific transmitter or receiver unit configuration within this family, optimized for standard safety applications requiring Type 2 classification.

Replacement Considerations

Direct replacement requires matching the M2000 series interface and mounting dimensions. Verify that the new unit supports the same PL C and SIL 1 ratings. Ensure the optical resolution and protective height remain consistent with the original safety analysis. Consult SICK documentation for cross-reference lists if upgrading to newer revisions of the M2000 series.