Allen-Bradley 1769-IF16C High-Density Analog Current Input Module

The Allen-Bradley 1769-IF16C is a high-density analog current input module. It belongs to the 1769 Compact I/O product family. This module works perfectly with CompactLogix and MicroLogix 1500 controllers. You can use it to read 4-20 mA signals from transmitters and sensors. It provides sixteen channels in a very compact form factor.

Technical Specifications of the 1769-IF16C

The 1769-IF16C offers sixteen (16) single-ended input channels. Each channel accepts current signals only. The normal input ranges are 0-20 mA and 4-20 mA. The full-scale range spans 0-21 mA and 3.2-21 mA. This covers standard industrial analog signals completely. The module uses a Delta-Sigma analog-to-digital converter for accurate readings.

Resolution and Accuracy Details

The 1769-IF16C delivers 16-bit resolution for unipolar signals. For bipolar signals, it offers 15 bits plus sign. Overall accuracy reaches 0.5% at 25°C. This applies for 16 Hz, 50 Hz, and 60 Hz selectable filters. The drift accuracy is ±0.0045% per degree Celsius. Non-linearity stays at ±0.03%. Repeatability measures ±0.03% with the 16 Hz filter.

Electrical and Isolation Specifications

This module draws 190 mA at 5V DC from the backplane. It also draws 70 mA at 24V DC. Heat dissipation equals 4.0 Watts. The isolation voltage is 30V DC between input group and bus. It is tested at 710V DC or 500V AC for one minute. The maximum input terminal overload is ±28 mA at 7.0V DC. This provides robust protection for field wiring faults.

Environmental and Mechanical Ratings

The 1769-IF16C operates from 0°C to 60°C. Storage temperature ranges from -40°C to 85°C. Shock rating is 30G for 11 milliseconds when panel mounted. On DIN rail, the rating is 20G for 11 milliseconds. The enclosure type is open style. The module does not require any calibration during its lifetime.

Compatibility and Installation Guidelines

The 1769-IF16C is compatible with 1769 CompactLogix controllers. It also works with MicroLogix 1500 systems. The power supply distance rating is 8 modules. Do not install this module more than 8 slots from the power supply. Use shielded Belden™ 8761 cable for best signal quality. Proper shielding reduces electrical noise interference significantly. The module mounts on a DIN rail or a panel.

Module Dimensions and Weight

The 1769-IF16C measures 118 mm in height without tabs. Width is 35 mm. Depth is 87 mm. In inches, dimensions are 4.65 x 1.38 x 3.43 inches. Height increases to 138 mm (5.43 inches) with mounting tabs. The module weighs approximately 0.62 pounds or 281 grams. This compact size allows high channel density in small panels.

Package Contents

• One (1) Allen-Bradley 1769-IF16C analog current input module

• One (1) removable terminal block

• Product documentation and wiring instructions

Common FAQs for the 1769-IF16C

1. Does the 1769-IF16C accept voltage signals?
No, the 1769-IF16C accepts only current signals. For voltage inputs, use the 1769-IF8 or 1769-IF16V modules instead.

2. What field devices connect to the 1769-IF16C?
The 1769-IF16C connects to 4-20 mA transmitters, VFD feedback signals, and signal isolators. It also works with modulating valves and data loggers.

3. How do I reduce noise on my current readings?
Configure the input filter on the 1769-IF16C for your application. The 16 Hz filter provides the best noise rejection. Higher filters give faster response but less noise rejection.

4. Does this module require periodic calibration?
No, the 1769-IF16C does not need any calibration. The module maintains accuracy throughout its life. This saves maintenance time and costs.

5. What is the power supply distance rating for the 1769-IF16C?
The power supply distance rating is 8 modules. The 1769-IF16C must be installed within 8 slots of the system power supply. Add another power supply for more modules.

Why Choose the Allen-Bradley 1769-IF16C?

This module delivers high-density analog input for current signals. Its sixteen channels save valuable rack space. The 16-bit resolution ensures precise measurement of process variables. No calibration requirement reduces long-term maintenance. Order the 1769-IF16C today to monitor many current loops in a small footprint.