The Allen-Bradley 1771-IAD is a 16-point AC/DC digital input module designed for use with PLC-5 programmable logic controllers. This module allows high-speed signal acquisition, enabling real-time monitoring and control of industrial automation systems. The 1771-IAD operates at 120V AC or 125V DC, making it ideal for applications where both AC and DC signals need to be processed within the same control system.
Technical Specifications
- Manufacturer: Allen-Bradley (Rockwell Automation)
- Model: 1771-IAD
- Module Type: AC/DC Digital Input Module
- Number of Inputs: 16
- Input Voltage Range:
- 120V AC (47-63 Hz)
- 125V DC
- Input Current: 10 mA at 120V AC, 8 mA at 125V DC
- Signal Delay: 8.3 ms ON / 8.3 ms OFF (AC), 4 ms ON / 4 ms OFF (DC)
- Backplane Current Load: 195 mA at 5V DC
- Isolation Voltage: 1500V (field side to logic side)
- Mounting Type: Rack-mounted in a 1771 I/O chassis
- Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
- Certifications: UL, CE, CSA approved for industrial automation applications
Key Features
- 16-point digital input processing for AC and DC signals
- High-speed signal acquisition with minimal delay
- Designed for use in PLC-5 systems
- Optical isolation for noise immunity and system protection
- Backplane-powered operation simplifies installation
- LED status indicators for real-time diagnostics
- Rack-mounted design for modular system expansion
Compatible Allen-Bradley Components
- Allen-Bradley PLC-5 Processors (e.g., 1785-L40B, 1785-L60B)
- Allen-Bradley 1771 I/O Chassis and Power Supplies
- Allen-Bradley 1771 Series Digital and Analog I/O Modules
- Allen-Bradley PanelView HMIs for operator interface
Industry Applications
- 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
Installation & Operational Notes
- Ensure proper voltage selection (AC or DC) before installation
- Verify correct placement in the PLC-5 I/O chassis
- Check LED indicators for input signal status and troubleshooting
- Regularly inspect module connections to prevent signal loss
- Follow Allen-Bradley’s recommended installation and safety guidelines
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.
This item isRefurbished. We are unauthorized by Allen Bradley.