Allen-Bradley 1769-ECR CompactLogix Right End Cap Module

Core Technical Specifications

• Manufacturer: Rockwell Automation / Allen-Bradley
• Model Number: 1769-ECR
• Product Type: CompactLogix Right End Cap Module
• Function: FlexBus Circuitry Termination
• Product Weight: 130 g (0.286 lbs)
• Enclosure Type: Open Style for Protected Installation
• Bus Current: 5 mA Maximum @ 5V DC
• Mounting Position: Right End of CompactLogix Assembly

Electrical & Power Specifications

• Bus Current Draw: 5 mA Maximum at 5.1V DC
• 24V DC Current: 0 mA Draw from Power Supply
• Power Consumption: Minimal System Load
• Bus Termination: Proper FlexBus Signal Integrity
• RIUP Support: Not Supported - Install with Power Off
• System Protection: Prevents Signal Reflection and Noise

Environmental & Operational Ratings

• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Relative Humidity: 5% to 95% Non-Condensing
• Maximum Altitude: 2000 Meters (6562 Feet) Operation
• UV Protection: Requires Enclosure from Sunlight Exposure
• Zone 2 Requirement: IP54 Protection for Hazardous Areas

Mechanical & Physical Specifications

• Vibration Resistance: 5G @ 10-500 Hz Operating
• DIN Rail Shock: 20G Operational, 30G Non-Operational
• Panel Mount Shock: 30G Operational, 40G Non-Operational
• Temperature Code: T3C (North America), T4 (IEC)
• Material Construction: Industrial Grade Components
• Installation: Single Unit at End of Module Assembly

Installation & Safety Requirements

• Install the 1769-ECR only when system power is completely off
• Position at the right end of the final CompactLogix module
• Lift bus lever from engaged position before installation
• Align the end cap with guide slots on adjacent module
• Push gently until the module sits flush with assembly
• Engage bus lever to secure connection and close FlexBus

System Integration & Compatibility

• Controller Support: All 1769 CompactLogix Systems
• Assembly Requirement: Mandatory for Proper Bus Operation
• Configuration Qualification: Necessary for Valid System Setup
• Signal Integrity: Ensures Reliable Bus Communication
• Module Positioning: Right Side of Last I/O Module
• System Protection: Prevents Electrical Noise and Errors

Safety & Compliance Information

• Power Safety: Always Disconnect Power Before Installation
• Environmental Protection: Requires Proper Enclosure Housing
• Electrical Safety: Prevents Bus Signal Degradation
• Mechanical Safety: Secure Mounting Prevents Vibration Damage
• Compliance: Meets Industrial Control Equipment Standards
• Installation Warning: Incorrect Installation Causes System Errors

Application & Functional Purpose

• Bus Termination: Completes CompactLogix Communication Circuit
• Signal Quality: Maintains Data Integrity Across Bus
• System Validation: Required for Proper Controller Operation
• Noise Reduction: Minimizes Electrical Interference
• Assembly Completion: Final Component in Module Rack
• Reliability: Ensures Stable System Performance

Packaging & Shipping Information

• Your order includes one genuine Allen-Bradley 1769-ECR end cap
• We provide complete installation guidelines and safety information
• We ship worldwide via FedEx, UPS, and DHL express services
• You receive full tracking information and delivery confirmation

Frequently Asked Questions (FAQ)

• Why is the right end cap necessary for CompactLogix systems?
• The end cap terminates the FlexBus communication circuit, preventing signal reflection and ensuring reliable data transmission between modules.
• Can I install or remove the end cap while the system is powered?
• No, you must always disconnect power before installing or removing the end cap to prevent system errors and damage.
• What happens if I operate a CompactLogix system without the end cap?
• Operating without the end cap can cause communication errors, data corruption, and unpredictable system behavior.
• Where exactly should I position the end cap in the module assembly?
• Install the end cap at the far right end of the module assembly, immediately after the last I/O or communication module.
• What is the purpose of the bus lever on the end cap?
• The bus lever secures the electrical connection and ensures proper contact with the adjacent module's bus connector.

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