PS116-Z11-ST-H200 Mechanical Interlock Single Contact Switch IP67 Stainless Steel Industrial Guard

1. Product Overview

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The Schmersal PS116-Z11-ST-H200 is a high-density Type 4 safety light curtain engineered for precision machine guarding in space-constrained industrial environments. Featuring a ​116mm compact protection height​ with ​200mm resolution beams (H200 suffix)​, this system delivers finger-level protection compliant with ISO 13855 standards. Its kinematic mounting technology provides ±15° vertical alignment tolerance to compensate for installation variances and thermal drift. The integrated Z11 controller incorporates advanced safety logic including Safe Torque Off (STO) outputs ("ST" designation), cascading capability, and dynamic floating blanking. Encased in rugged polycarbonate housing rated IP66 (NEMA 4X equivalent), the unit withstands harsh conditions including high-pressure washdowns, cutting fluids, and metal particulate. Synchronization via industrial-grade cable or optional 2.4GHz RF modules supports 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 ≤4W power consumption. Unique STO-rated semiconductor outputs (100mA @ 24V DC) directly interface with drive safety circuits, complemented by auxiliary diagnostic outputs. Environmental specifications include -15°C to +55°C operation, 40,000 lux ambient light immunity, and 30g shock resistance. Continuous self-monitoring covers 14 parameters: beam intensity (±5% tolerance), synchronization integrity, inclination sensing (±0.3° accuracy), and voltage stability. 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:

• ​PCB assembly: Guarding SMT pick-and-place machines with component feeders
• ​Medical device manufacturing: Protecting cleanroom automation for syringe assembly
• ​Micro-machining: Securing desktop CNC mills during precision tool changes
• ​Pharmaceutical packaging: Monitoring blister sealing stations with limited clearance
• ​Laboratory automation: Creating safety perimeters around microplate handlers
• ​Robotic micro-assembly: Safeguarding collaborative cells handling miniature components
• ​Conveyor micro-transfer: Detecting finger intrusion at miniature part junctions
• ​Watchmaking equipment: Protecting operators near miniature press mechanisms
  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.

​4. Product Advantages and Functional Benefits​

• ​Space Optimization: 116mm profile enables guarding in areas with ≤150mm clearance
• ​Drive Safety Integration: Direct STO outputs eliminate safety relay requirements
• ​Precision Detection: 200mm resolution provides industry-leading finger protection
• ​Thermal Compensation: Kinematic mounts maintain alignment during ±15° thermal drift
• ​Predictive Maintenance: 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 option simplifies upgrades in existing machinery

​5. Core Functionality and Safety Integration​
The system employs dual-wavelength infrared beams (850/950nm) with synchronized pulse transmission. Kinematic prismatic joints dynamically maintain optical alignment during angular deviations. When beam interruption exceeds 30ms, 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. 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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