NI50U-CP40-AN6X2 50mm Inductive Proximity Sensor IP67 Stainless DC 10-30V Industrial Switch

1. ​Heavy-Duty Dual-Channel Inductive Sensor Overview​

The Turck NI50U-CP40-AN6X2 is a rugged inductive proximity sensor engineered for critical industrial automation applications requiring redundant detection. Featuring a ​nickel-plated brass housing (NI50U suffix)​​ with ​M30×1.5 threading, this device delivers an ​exceptional 40mm sensing range (CP40)​​ for ferrous targets. Its ​dual NPN outputs (AN6X2 designation)​​ provide independent normally open (NO) channels meeting ​SIL 2/PL d safety standards​ (IEC 61508/ISO 13849-1). Certified for ​IP67/IP69K protection, it withstands high-pressure washdowns (150 bar), oils, and temporary submersion while operating across ​​-40°C to +85°C. The sensor incorporates ​cross-monitoring diagnostics​ to detect internal faults and resists vibration (10g) and electromagnetic interference. Designed for safety gates, robotic cells, and heavy machinery, it enables redundant position monitoring where single-point failure could compromise personnel safety or equipment integrity in automotive stamping, mining conveyors, and material handling systems.

2. ​Critical Technical Specifications​

• ​Sensing Performance:
  Range: 40mm for steel (Fe360) ±10%
  Target: Ferrous metals ≥1mm thickness
  Repeatability: ±0.5mm
  Response Frequency: ≤100Hz
• ​Electrical:
  Outputs: 2× NPN NO (sinking)
  Voltage: 10-30V DC
  Switching Current: ≤200mA per channel
  Connection: M12 4-pin connector
• ​Environmental:
  IP67 (IEC 60529) / IP69K (ISO 20653)
  Temperature Range: -40°C to +85°C
  Shock Resistance: 100g (IEC 60068-2-27)
• ​Safety Ratings:
  SIL 2 (PFHD 1.5×10⁻⁸/h per IEC 61508)
  PL d (Cat. 3 per ISO 13849-1)
• ​Mechanical:
  Housing: Nickel-plated brass
  Thread: M30×1.5
  Dimensions: Ø30×80mm

3. ​Industrial Safety Applications​

This sensor excels in high-risk automation scenarios:

• ​Automotive Stamping Presses: Dual-position monitoring of hydraulic rams
• ​Robotic Welding Cells: Safety door position verification
• ​Mining Conveyors: Redundant bucket alignment detection
• ​Packaging Machinery: Guard door interlocks with SIL 2 compliance
• ​Steel Roll Forming Lines: Backup sensing of roller positioning
• ​Hydraulic Presses: Platen position redundancy systems
• ​Material Handling: Pallet presence detection in AS/RS systems
• ​CNC Machine Tools: Tool changer safety interlocks
  Its dual-channel architecture enables use in safety circuits up to PL d where single sensor failure must not compromise protection integrity, particularly in high-vibration environments like forging hammers or crusher plants where 100g shock resistance ensures reliability.

4. ​Functional Advantages​

• ​Redundant Safety Architecture:
  Cross-monitored outputs detect internal faults with >60% diagnostic coverage
  Independent NPN channels meet SIL 2/PL d requirements
• ​Extended Sensing Capability:
  40mm range detects targets through non-metallic barriers
  ±15mm lateral tolerance for misalignment compensation
• ​Environmental Resilience:
  Nickel-plated brass withstands coolants/hydraulic fluids
  IP69K rating survives 1500 psi steam cleaning
• ​Diagnostic Intelligence:
  Dual-color LEDs (green/red) per channel for status indication
  Fault memory via output pulsing patterns
• ​Electrical Robustness:
  Reverse polarity protection (EN 60947-5-2)
  Short-circuit/overload protection per channel
• ​Installation Durability:
  M30 threading withstands 80Nm torque
  500hr salt spray resistance (ISO 9227)

5. ​Safety Operation & Diagnostics​

​Dual-Channel Logic:

1. ​Target Detection:
   Ferrous metal enters 40mm range → electromagnetic field disturbance
2. ​Output Behavior:
   Both NPN channels close (sink current) on detection
3. ​Cross-Monitoring:
   ASIC compares response times (discrepancy >5ms triggers fault)
4. ​Diagnostic Indicators:

   ​LED State​	​Condition​
   Solid Green (both)	Normal operation
   Flashing Green (Ch1)	Channel 1 active
   Solid Red (Ch1)	Channel 1 fault
   Off	Power loss

​Safety Protocol:

• Outputs force open circuit within 10ms of fault detection
• Undervoltage lockout below 8V DC
• Automatic restart after fault clearance

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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