Product Overview

The 1771-IFEK is an analog input module from Allen-Bradley. It belongs to the PLC 5 series. This module uses a conformal coating for protection. It works with indicators and solenoids. It also works with AC motor starters. The module does not need an external power source. It mounts on a rack and uses the 1771-WG wiring arm.

Application Scenarios

Use this module in industrial automation systems. It converts analog signals to digital data. Use it for monitoring voltage and current. It is ideal for process control. Many factories rely on this module for data acquisition.

Technical Specifications

The 1771-IFEK has 8 differential or 16 single-ended inputs. It offers selectable data format. Data can be natural binary or BCD. Scaling goes to +/- 9999. Channel update time is 18 ms for 8 channels. It is 36 ms for 16 channels. The resolution is 12 bits plus sign. Voltage ranges include 0-5V, 1-5V, +/-5V, +/-10V, and 0-10V. Current ranges are 4-20mA, 0-20mA, and +/-20mA. Backplane current is 750 mA. It has a conformal coating for protection. The module is rack mountable. It requires a single slot in a 1771 I/O chassis. Power dissipation is 2.5W. Thermal dissipation is 8.52 BTU/hr. It has a green RUN and red FAULT indicator. It includes optoelectrical isolation and digital filtering.

Installation & Maintenance Guide

Install the module in a 1771 I/O chassis. Use keying bands between pins 10-12 and 24-26. Connect wiring using the 1771-WG arm. The arm allows module replacement without wire disconnection. Ensure proper grounding for noise reduction. The module does not require external power. For maintenance, check the conformal coating integrity. Clean with recommended solvents if needed.

Packing List

One 1771-IFEK analog input module. One wiring arm (1771-WG). Installation manual. Warranty card not included.