Allen-Bradley 1769-IQ16F 16-Point 24VDC Module

Allen-Bradley 1769-IQ16F High Speed DC Input Module

Product Introduction

The 1769-IQ16F belongs to the Allen-Bradley CompactLogix I/O family. This module provides 16 digital input channels for high-speed applications. Each channel supports both sinking and sourcing field devices. Therefore, it adapts easily to different wiring conventions.

Key Technical Specifications

The 1769-IQ16F operates at 24V DC nominal with a range of 10-30V DC at 30°C. At 60°C, the range becomes 10-26.4V DC. The module draws 110mA at 5.1V DC from the backplane and dissipates 3.55W of heat.

For high-speed counting, this module features adjustable digital filters. You can set the ON/OFF and OFF/ON delay to 0, 0.5, 1, or 2 milliseconds. The maximum input signal delay from ON to OFF is 2 milliseconds, while OFF to ON delay reaches 300 milliseconds.

The 1769-IQ16F has an ON-state current of 2.0mA at 10V DC minimum. Its OFF-state voltage stays below 5V DC at 1.5mA. Inrush current reaches 250mA with an input impedance of 3 kΩ.

Isolation and Distance Rating

This module provides 75V isolation voltage between input points and the bus. It also features IEC Class 2 reinforced insulation tested at 1679V DC for one second between groups.

The 1769-IQ16F carries a power supply distance rating of 8 modules. This means you can place it up to eight slots away from the power supply. Consequently, system layout becomes more flexible.

Mechanical and Environmental Ratings

• Operating Temperature: 0 to 60 °C (32 to 140 °F)

• Relative Humidity: 5 to 95% non-condensing

• Vibration (Operating): 10 to 500 Hz, 5G, 0.030 in peak-to-peak

• Wire Type: Copper, rated for 90°C

• Wire Size (Solid): 22 to 14 AWG

• Wire Size (Stranded): 22 to 16 AWG

• Mounting: DIN rail or panel mount

• Terminal Screw Torque: 6 lb-in

Installation Guidelines

First, verify that the 1769-IQ16F sits within eight modules of the power supply. Then, mount the module on DIN rail or directly on a panel using the screw terminals.

Next, connect your field devices using 22-14 AWG copper wire. Each input can be wired as sinking (current flowing into the module) or sourcing (current flowing out). Use the removable terminal block for easy wiring and replacement. If the terminal block becomes damaged, order a 1769-RTBN18 replacement.

Additionally, set the digital filter time through your Studio 5000 configuration. Choose shorter delays for high-speed signals like encoders. Choose longer delays to debounce mechanical switches.

Compatible Systems

The 1769-IQ16F works with any 1769 CompactLogix controller, including the 1769-L36ERM, 1769-L33ERM, and 1769-L30ERM series. It also functions with 1769 Compact I/O racks and expansion banks.

Packaging List

• 1 x Allen-Bradley 1769-IQ16F Input Module

• 1 x Removable Terminal Block (1769-RTBN18 compatible)

• 1 x User Manual (digital download available)

Note: Shipping via FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

1. Can the 1769-IQ16F replace a standard 1769-IQ16 module?
Yes, but the 1769-IQ16F offers high-speed filtering down to 0 ms delay. Standard IQ16 modules have slower fixed filters. Therefore, the IQ16F works better for fast signals.

2. What does sink/source mean for this module?
Each input on the 1769-IQ16F can be wired as sinking (common positive) or sourcing (common negative). This flexibility matches both PNP and NPN field devices without extra converters.

3. How do I adjust the input filter time?
You set the filter in Studio 5000 Logix Designer under the module configuration tab. Options include 0 ms, 0.5 ms, 1 ms, and 2 ms. Choose 0 ms for high-speed counting applications.

4. Is the terminal block included with the module?
Yes, the 1769-IQ16F ships with a removable terminal block. However, if lost or damaged, order 1769-RTBN18 as a spare replacement part.

5. What is the maximum input frequency this module can handle?
With the filter set to 0 ms, the 1769-IQ16F responds to pulses as short as 0.5 ms. This equates to roughly 1 kHz maximum input frequency. For faster signals, consider a high-speed counter module.