PS116-Z11-ST-S200 Mechanical Interlock Single Contact Switch IP67 Stainless Steel Industrial Guard

1. Product Overview

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The Schmersal PS116-Z11-ST-S200 is an ultra-compact Type 4 safety light curtain engineered for precision machine guarding in space-constrained industrial automation environments. Featuring a ​minimalist 116mm protection height​ with ​200mm resolution beams (S200 suffix)​, this system delivers reliable finger/hand protection compliant with ISO 13855 standards. Its innovative kinematic mounting technology provides ±15° vertical alignment tolerance to automatically compensate for installation variances, thermal expansion, and machinery vibration. The integrated Z11 advanced safety controller incorporates critical functions including ​Safe Torque Off (ST) outputs​ for direct drive integration, cascading capability for multi-system networks, and dynamic floating blanking. Encased in rugged UV-stabilized polycarbonate housing with ​IP66 protection​ (IP69K optional), the unit withstands harsh industrial conditions including high-pressure washdowns, cutting fluids, metal particulates, and chemical exposure. Synchronization via industrial-grade cable or optional 2.4GHz RF modules ensures reliable operation across distances up to 15m.

​2. Key Technical Parameters

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Certified to IEC 61496-1/2 Type 4, ISO 13849-1 PL e (Category 4), and IEC 62061 SIL 3 safety standards, the system achieves a rapid ≤20ms response time from beam interruption to safety shutdown. Operating voltage ranges from 19-30V DC with low ≤4W power consumption. Unique ​STO-rated semiconductor outputs​ (100mA @ 24V DC) directly interface with drive safety circuits without additional relays, complemented by auxiliary diagnostic outputs. Environmental specifications include an extended operating temperature range of -15°C to +55°C, 40,000 lux ambient light immunity, and 30g shock resistance (IEC 60068-2-27). Continuous self-monitoring covers 14+ parameters including beam intensity (±5% tolerance), synchronization integrity, inclination sensing (±0.3° accuracy), and voltage stability diagnostics. The kinematic system maintains optical alignment within 0.4° tolerance throughout its ±15° compensation range, while the 200mm beam spacing enables EN ISO 13855-compliant finger protection.

​3. Primary Applications and Use Cases​
This ultra-compact system excels in confined automation scenarios requiring high-density protection:

• ​Electronics manufacturing: Guarding PCB depaneling machines and micro-soldering stations
• ​Medical device assembly: Protecting automated insulin pen assembly with cleanroom compatibility
• ​Precision CNC machining: Securing micro-milling centers during delicate tool changes
• ​Pharmaceutical filling: Monitoring vial handling systems with limited vertical clearance
• ​Laboratory automation: Creating safety perimeters around DNA sequencers and microscopes
• ​Robotic micro-handling: Safeguarding collaborative cells assembling miniature components
• ​Watchmaking production: Protecting operators near jewel press mechanisms
• ​Semiconductor processing: Securing wafer handling robots in cleanroom environments
  The 116mm height enables installation where conventional light curtains cannot fit, while kinematic compensation prevents alignment failures in applications experiencing thermal expansion or vibration. STO outputs provide direct safety integration with servo drives in precision automation systems, eliminating intermediate components.

​4. Product Advantages and Functional Benefits​

• ​Space Optimization: Minimal 116mm profile enables guarding in areas with ≤150mm clearance
• ​Drive Integration: Direct STO outputs eliminate safety relays (40% component reduction)
• ​Precision Detection: 200mm resolution provides industry-leading finger protection
• ​Thermal Compensation: Kinematic mounts maintain alignment during ±15° thermal drift
• ​Predictive Diagnostics: Optical contamination alerts via auxiliary outputs
• ​Configuration Flexibility: Z11 controller supports cascade networking (≤4 units)
• ​Dynamic Blanking: Adaptive obstacle avoidance without protection gaps
• ​Global Compliance: Pre-validated to ISO 13855 and ANSI B11.19 standards
• ​Vibration Immunity: Maintains performance in 5-200Hz vibration environments
• ​Retrofit Efficiency: RF synchronization simplifies upgrades in existing machinery
• ​Maintenance Reduction: Hermetically sealed optics resist coolant mist ingress

​5. Core Functionality and Safety Integration​
The system employs synchronized 950nm infrared beams with redundant pulse transmission between emitter and receiver units. Kinematic prismatic joints dynamically maintain optical alignment during angular deviations up to ±15°. When beam interruption exceeds 30ms (configurable via DIP switches), the Z11 controller simultaneously:

1. De-energizes STO outputs within 100ms to disable drives
2. Opens safety contacts to halt machine motion
   Continuous diagnostics monitor beam deflection via integrated inclinometers and synchronization integrity through encrypted handshaking. The floating blanking function dynamically deactivates beams obscured by fixed fixtures while maintaining adjacent protection zones. STO outputs feature cyclic pulse testing (2kHz) to detect circuit faults, while cascade synchronization enables seamless protection field extension across multiple units. Safety reset requires deliberate local confirmation after fault resolution, with event logging storing 32+ diagnostic codes for compliance auditing. The 200mm beam spacing enables safety distance calculation per ISO 13855 (S = K × T + C) formula, ensuring hazardous motion ceases before operators reach danger zones in high-speed automation systems.

Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.

With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are

perfectly.

we are major in PLC,Sensors,HIM,Transmitters.

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