PS226-Z12-S200 Dual Contact Mechanical Interlock Switch IP67 Stainless Steel Industrial Guard

1. Product Overview

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The Schmersal PS226-Z12-S200 is an advanced Type 4 safety light curtain designed for robust personnel protection in demanding industrial environments. Featuring a 226mm protection height with 200mm resolution beams ("S200" suffix), this system provides precise finger and hand protection compliant with ISO 13855 standards. Its kinematic mounting technology enables ±15° vertical alignment tolerance to compensate for installation variances and machinery vibration. The integrated Z12 controller supports sophisticated safety functions including configurable muting sequences, floating blanking, cascade synchronization, and comprehensive diagnostics. Constructed with rugged polycarbonate housing rated IP67, the unit withstands harsh conditions including high-pressure washdowns, metal dust, and chemical exposure. Synchronization via cable or optional RF modules supports reliable operation at distances up to 20m between emitter and receiver units.

​2. Key Technical Parameters

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Operating at 24V DC ±20%, the PS226-Z12-S200 achieves IEC 61496-1/2 Type 4 certification with ISO 13849-1 PL e (Category 4) and IEC 62061 SIL 3 safety ratings. The system features a response time of ≤20ms from beam interruption to safety output shutdown. Electrical specifications include two OSSD PNP semiconductor outputs rated at 100mA @ 24V DC and two auxiliary semiconductor outputs. Environmental resilience includes an operating temperature range of -15°C to +55°C, ambient light immunity up to 40,000 lux, and robust resistance against mechanical shocks up to 30g. Continuous self-diagnostics monitor 15+ parameters including beam alignment stability, synchronization integrity, and voltage fluctuations through the integrated Z12 safety controller.

​3. Primary Applications and Use Cases

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This system excels in precision protection scenarios requiring high-resolution detection and environmental durability. Essential applications include press brake operations where its 200mm resolution provides finger protection during metal bending processes. Robotic welding cells utilize it to create dynamic protection fields around articulated robot arms. Packaging machinery deployments secure conveyor nip points and automatic palletizing stations. CNC machining centers implement it for access protection during tool changes, while plastic injection molding machines benefit from its thermal drift compensation. Additional critical uses include automated assembly line perimeter guarding, forging equipment access monitoring, and material handling system safety zones where space constraints demand compact solutions.

​4. Product Advantages and Functional Benefits

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The PS226-Z12-S200 delivers significant operational advantages through its innovative design. Kinematic mounting provides ±15° angular compensation, eliminating recalibration needs after machinery shifts or thermal expansion. The 200mm beam resolution offers industry-leading precision for finger protection in confined spaces. Advanced diagnostics enable predictive maintenance by detecting optical contamination before performance degradation. The Z12 controller's pre-programmed safety functions reduce integration time by 60% compared to conventional solutions. Floating blanking capability dynamically avoids fixed obstacles without creating blind spots. Additional benefits include 40% faster installation through tool-free alignment, vibration resistance maintaining performance in high-shock environments, and global compliance with ISO 13855 safety distance standards.

​5. Core Functionality and Safety Operation

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The system operates through synchronized 950nm infrared beam transmission between emitter and receiver units. When beam interruption exceeds 30ms, the Z12 controller opens both OSSD outputs within 20ms, initiating machine stop via connected safety systems. Continuous self-monitoring performs diagnostic checks including beam deflection measurement, synchronization verification, and output circuit validation through 1kHz pulse testing. The controller's logic enables floating blanking for dynamic obstacle avoidance and timed muting sequences via external sensors during material transfer. Safety reset requires deliberate confirmation after fault resolution, with all status changes logged for compliance auditing. The 200mm beam spacing provides EN ISO 13855-compliant protection when installed at calculated safety distances based on machine stopping performance.

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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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