---
title: "Interlock System"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:INTERLOCK_SYSTEM"
  data_integrity_hash: "831769d6f9ed80b8640ee98d6ea1edc5"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:INTERLOCK_SYSTEM"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/interlock-system.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/interlock-system"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "24-48 VDC at 2-10 A, 0-60°C ambient temperature, 10-95% relative humidity non-condensing"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 18
    unit: "VDC"
    consequence: "Electromagnetic relay contact welding at currents &gt;15 A due to joule heating exceeding 1500°C at contact points, semiconductor junction breakdown at voltages &gt;60 VDC, polymer seal degradation above glass transition temperature of 120°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Inductive load switching generating back-EMF of 200-400 V"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Snubber circuit with 100 Ω resistor and 0.1 μF capacitor in parallel with load, TVS diode with 58 V clamping voltage"
  - node_2:
      trigger: "Mechanical vibration at 50-200 Hz frequency exceeding 5 g acceleration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Anti-vibration mounting with natural frequency &lt;25 Hz, strain relief on wiring harness, redundant contact configuration with 2 mm actuation differential"
bom_nodes:
  position-sensor:
    type: "part"
    urn: "URN:CNFX:ME:POSITION_SENSOR"
    interface_type: "physical-logic-coupled"
  control-unit:
    type: "part"
    urn: "URN:CNFX:ME:CONTROL_UNIT"
    interface_type: "physical-logic-coupled"
  locking-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:LOCKING_MECHANISM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/interlock-system.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "06b2bd8e09afafb6a61d001be187714ade76116cd0384979e5588034463be48e"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Interlock System

## 1. Technical Definition
A safety mechanism that prevents simultaneous operation of incompatible functions or access to hazardous areas.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **24-48 VDC at 2-10 A, 0-60°C ambient temperature, 10-95% relative humidity non-condensing**. Failure boundary: **Voltage drop below 18 VDC for &gt;100 ms, current exceeding 15 A for &gt;50 ms, ambient temperature &gt;85°C, mechanical force &gt;50 N on actuator**, Mechanism: **Electromagnetic relay contact welding at currents &gt;15 A due to joule heating exceeding 1500°C at contact points, semiconductor junction breakdown at voltages &gt;60 VDC, polymer seal degradation above glass transition temperature of 120°C**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Inductive load switching generating back-EMF of 200-400 V | 8 | Solid-state relay MOSFET avalanche breakdown at drain-source voltage &gt;500 V | Snubber circuit with 100 Ω resistor and 0.1 μF capacitor in parallel with load, TVS diode with 58 V clamping voltage |
| Mechanical vibration at 50-200 Hz frequency exceeding 5 g acceleration | 8 | Limit switch micro-crack propagation leading to contact bounce &gt;10 ms | Anti-vibration mounting with natural frequency &lt;25 Hz, strain relief on wiring harness, redundant contact configuration with 2 mm actuation differential |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Position Sensor](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/position-sensor.md) `(Standalone System)`
- [Control Unit](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/control-unit.md) `(Standalone System)`
- [Locking Mechanism](https://cnfx.com/llms/industry/fabricated-metal-product-manufacturing/product/locking-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Safety Light Curtains**, **Emergency Stop Buttons**, **Programmable Logic Controller (PLC)**  
**Downstream Applications**: Industrial Presses, Robotic Assembly Cells, Packaging Machinery  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What is the primary function of an interlock system in machinery manufacturing?
**A**: The interlock system prevents simultaneous operation of incompatible machine functions and restricts access to hazardous areas during operation, ensuring operator safety and preventing equipment damage.

### Q: What materials are used in industrial interlock systems and why?
**A**: Our interlock systems use stainless steel for durability and corrosion resistance, engineering plastics for electrical insulation and impact resistance, and electronic components for precise control and monitoring.

### Q: How does the position sensor work within the interlock system?
**A**: The position sensor detects the exact location of machine components or guards, sending signals to the control unit which then activates or deactivates the locking mechanism based on predefined safety parameters.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Interlock System](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/interlock-system)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: INTERLOCK_SYSTEM | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: de87b110
