Allen Bradley 960366-73 Input Module 1771-IAD /B

Allen-Bradley 1771-IAD/B 16-Point Digital Input Module

The Allen-Bradley 1771-IAD/B is a 16-point digital input module designed for seamless integration into PLC-5 programmable logic controllers. This module is engineered to handle both AC and DC input signals, making it a versatile choice for various industrial automation applications.

Key Features

• Dual Voltage Compatibility: Operates efficiently with input voltages ranging from 79 to 138V AC and 79 to 138V DC, accommodating diverse signal types within a single module.
• High-Speed Signal Processing: Offers rapid signal acquisition with typical ON delays of 5 ms (±3 ms) for AC inputs and selectable 3 ms (±0.1 ms) or 10 ms (±1 ms) for DC inputs, ensuring timely response in control systems.
• Robust Isolation: Provides optical isolation between field inputs and the logic side, enhancing noise immunity and protecting the system from electrical disturbances.
• Efficient Power Consumption: Draws a backplane current of 195 mA at 5V DC, optimizing energy usage within the control system.
• LED Status Indicators: Equipped with LED indicators for each input channel, facilitating real-time diagnostics and system monitoring.
• Modular Design: Compatible with various 1771 I/O chassis, including models A1B, A2B, A3B, A3B1, A4B, AM1, and AM2, allowing flexible system expansion and customization.

Technical Specifications

• Number of Inputs: 16
• Operating Voltage Range: 79-138V AC; 79-138V DC
• Signal Delay (Typical):
  • AC ON: 5 ms (±3 ms)
  • DC ON: Selectable 3 ms (±0.1 ms) or 10 ms (±1 ms)
  • AC/DC OFF: 25 ms (±5 ms)
• Off-State Current (Max): 3.0 mA AC; 0.8 mA DC
• Backplane Current Load: 195 mA at 5V DC
• Wiring Arm: 1771-WH
• Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
• Dimensions: 89 x 165 x 51 mm (3.5 x 6.5 x 2.0 in)
• Weight: 0.941 kg

Applications

The 1771-IAD/B module is ideal for general-purpose 120V AC/DC input applications, including:

• Manufacturing automation and process control
• Material handling and conveyor systems
• Power generation and distribution control
• Water and wastewater treatment plants
• Oil and gas automation systems

Its ability to process both AC and DC signals within the same module simplifies system design and reduces the need for multiple input modules, enhancing overall system efficiency and reliability.