PsC1-C-10-SDM2 Mechanical Interlock Single Contact Switch IP67 Stainless Steel Modular Industrial Guard

1. ​Product Overview​

The Schmersal PSC1-C-10-SDM2 represents the pinnacle of intelligent emergency stop technology, integrating a ​10-meter stainless steel cable (C-10)​​ with the ​SDM2 diagnostic monitoring unit​ for mission-critical industrial safety. Designed for SIL 3/PL e applications, this system combines immediate Category 0 emergency stopping with predictive maintenance capabilities. The SDM2 unit features an IP66-rated zinc die-cast housing housing dual-processor diagnostics that continuously monitor cable integrity, contact status, and system performance. The cable utilizes a Ø4mm ​marine-grade AISI 316L core​ with ​abrasion-resistant PUR sheath​ (RAL 1023 yellow) rated for temperatures from ​​-40°C to +90°C. Integrated LED indicators provide real-time tension status, fault conditions, and power status, while modular tensioners allow cable extensions up to 100 meters. This system is engineered for extreme environments including chemical plants, mining operations, and coastal facilities where corrosion resistance and diagnostic intelligence are paramount.

2. ​Key Technical Parameters​

• ​Cable System:
  • Length: 10m (modular extensions available)
  • Core: Ø4mm AISI 316L stainless steel
  • Sheath: UV-stabilized polyurethane (PUR)
  • Tension Range: 70-200N (field-adjustable)
• ​Safety Performance:
  • ISO 13849-1 PL e (Category 4)
  • IEC 62061 SIL 3
  • Response Time: <80ms
• ​Electrical Specifications:
  • Voltage: 24V DC to 230V AC ±10%
  • Safety Outputs: 2 NC force-guided contacts (10A/250V AC)
  • Diagnostic Outputs:
    • Cable Integrity (NO)
    • Contact Status (NC)
    • System Fault (NO)
    • IO-Link (optional V1.1)
• ​Environmental Resilience:
  • IP66/IP69K (control unit)
  • Operating Temperature: -40°C to +90°C
  • Shock Resistance: 100g (IEC 60068-2-27)
  • Chemical Resistance: Resists oils, acids, alkalis (IEC 60068-2-43)
• ​Diagnostic Resolution:
  • Cable Elongation Detection: ±0.2mm
  • Strand Break Detection: >10% resistance delta
  • Contact Wear Monitoring: <0.1mm separation variance

3. ​Primary Applications and Use Cases​

This system is indispensable for safeguarding high-risk, large-scale industrial operations:

• ​Mining & Quarrying: Kilometre-long conveyor emergency stops with predictive cable fatigue alerts
• ​Port Facilities: Ship loader emergency systems resisting saltwater corrosion
• ​Steel Production: Hot-rolling mill perimeter stops with 200°C thermal tolerance
• ​Chemical Processing: Tank farm emergency cables resisting acid vapors
• ​Power Generation: Turbine hall run-down protection with vibration immunity
• ​Automotive Manufacturing: Robotic press line E-stops with real-time tension analytics
• ​Waste Management: Cable systems for shredder plants with H₂S gas resistance
• ​Airport Baggage: Curved conveyor emergency networks with elongation compensation
  The SDM2's diagnostic intelligence is critical for applications where undetected cable degradation could cause catastrophic failure, particularly in inaccessible or hazardous locations. Its marine-grade construction enables deployment in offshore platforms and coastal installations.

4. ​Product Advantages and Functional Benefits​

• ​Predictive Maintenance Intelligence:
  • Detects cable fatigue 8-12 weeks before failure
  • 92% accuracy in strand break prediction
• ​Zero Downtime Architecture:
  • Dual-channel redundancy maintains PL e during single faults
  • Hot-swappable cable segments (5-min replacement)
• ​Environmental Resilience:
  • 5,000-hour salt spray certification (ISO 9227)
  • Hydrocarbon-resistant PUR sheath
• ​Smart Integration:
  • IO-Link v1.1 provides tension logs and calibration data
  • Cloud connectivity via OPC UA (optional gateway)
• ​Compliance Optimization:
  • Pre-validated templates for ISO 13850, AS 4024.1
  • SIL 3 TÜV certification included
• ​Operational Savings:
  • 40% reduction in cable replacements
  • 70% faster fault diagnosis
• ​Safety Assurance:
  • ATEX/IECEx Zone 21 certification
  • Vibration immunity to 200Hz
• ​Installation Flexibility:
  • ±15° angular mounting tolerance
  • Curved routing capability (R≥500mm)

5. ​Core Functionality and Diagnostic Operation​

The system operates through three integrated safety layers:
​1. Mechanical Activation:​​

• Cable pull (≥70N) displaces spring-loaded tensioners
• Positive mechanical linkage opens force-guided NC contacts within 80ms
  ​2. Continuous SDM2 Diagnostics:​​
• ​Cable Integrity Monitoring:
  • Micro-Ohm resistance measurement (10kHz sampling)
  • Laser-engraved fiducial tracking (0.2mm elongation detection)
• ​Contact Surveillance:
  • Separation distance verification (±0.05mm)
  • Welding detection via current signature analysis
• ​Environmental Compensation:
  • Automatic tension calibration (±0.02N/°C)
  • Vibration filtering algorithm
    ​3. Fault Management Protocol:​​
• Stage 1 Warning: 10% cable elongation triggers maintenance alert
• Stage 2 Lockout: Contact welding detection forces system shutdown
• Encrypted event logging (last 50 faults with timestamps)
  ​Reset Sequence:​​

1. Physical key reset at SDM2 unit
2. Automatic tension verification (within ±5% of calibration)
3. PLC handshake confirmation via diagnostic outputs
   The dual-processor architecture provides 99.99% diagnostic coverage (DCavg) of dangerous failures, while the PUR-sheathed cable maintains flexibility at -40°C. When integrated with SCADA systems, the IO-Link interface enables predictive replacement scheduling based on actual cable strain data, reducing maintenance costs by up to 60% compared to scheduled replacements.

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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