Allen-Bradley 1769-ECR Right End Cap Module

Overview

The Allen-Bradley 1769-ECR is a Right End Cap (ECR) module designed for use with the CompactLogix product family. This essential module functions as a bus terminator, completing the FlexBus circuit and signaling the end of the CompactLogix assembly. It is a critical component for qualifying the CompactLogix configuration and ensuring smooth operation of your industrial control system.

Key Features

Bus Termination: The 1769-ECR module terminates the FlexBus, signaling the end of the CompactLogix series.
Low Power Consumption: Draws only 5 mA at 5.1 VDC.
Compact and Lightweight: Weighs just 130 g (0.286 lbs) with an open-style enclosure.
Flexible Operating Range: Supports a wide operating temperature range of 0 – 60°C (32 – 140°F).
Robust Vibration Resistance: Rated for operating vibration up to 5 g, 10-500 Hz.
Shock Resistance: Withstands shocks up to 20 g (DIN rail mount) and 30 g (panel mount).
Humidity Tolerance: Handles 5-95% relative humidity (non-condensing).
Altitude Support: Functions at altitudes up to 2000 m (6562 ft).

Technical Specifications

Specification	Details
Manufacturer	Allen-Bradley
Category	PLCs
Product Line	CompactLogix
Module Type	Right End Cap (ECR)
Part Number	1769-ECR
Weight	130 g (0.286 lbs)
Operating Temperature	0 – 60°C (32 – 140°F)
Storage Temperature	-40 to 85°C (-40 to 185°F)
Vibration Resistance	5 g, 10…500 Hz
Operating Shock	20 g (DIN rail mount), 30 g (panel mount)
Humidity	5-95%, non-condensing
Power Consumption	33.6 Watts
Power Dissipation	7.5 Watts
Current Draw at 5.1V DC	5 mA
Maximum Bus Current Draw	5 mA at 5V DC
Operating Altitude	2000 m (6562 ft)
Operating Vibration	5 g, 10…500 Hz
Removal/Insertion Under Power	Not Supported
Bus Lever	Must be lifted to install

Dimensions & Weight

Dimensions: Compact form factor with open-style enclosure.
Weight: 130 g (0.286 lbs)

Product Description

The Allen-Bradley 1769-ECR Right End Cap module is a necessary component for completing the CompactLogix assembly. It terminates the FlexBus circuit and ensures seamless operation by signaling the end of the bus. With a compact, open-style enclosure, the 1769-ECR ensures secure installation in a range of environments. It supports operating temperatures between 0 – 60°C (32 – 140°F) and can withstand shocks and vibrations during normal operation. Designed with durability in mind, the module features a robust tolerance for vibrations and operating shock, making it ideal for industrial automation systems.

Installation requires removing power from the system to prevent controller errors. Ensure proper alignment when installing the module by lifting the bus lever and aligning the ECR module with the guide slots. Once in position, the bus lever can be engaged to complete the connection.