The Allen-Bradley 1771-IAD/B is a 16-point digital input module designed for use with PLC-5 programmable logic controllers. This module is capable of handling both 120V AC and 125V DC input signals, making it versatile for various industrial applications.
Key Features
- Dual Voltage Compatibility: Supports input signals ranging from 79V to 138V AC or DC, accommodating both AC and DC devices.
- High Input Capacity: Equipped with 16 input channels, allowing for multiple device connections.
- Efficient Signal Processing: Features selectable signal delays to optimize response times for different applications.
- Modular Design: Compatible with various 1771 I/O chassis, including models 1771-A1B through A4B, as well as 1771-AM1 and AM2, facilitating flexible system integration.
Technical Specifications
- Input Signal Range: 79-138V AC or DC
- Nominal Input Current: Approximately 9.8mA at 120V AC (60Hz) and 9.5mA at 125V DC
- Signal Delay:
- On to Off: 5ms (±3ms) for AC; selectable 3ms (±0.1ms) or 10ms (±1ms) for DC
- Off to On: 25ms (±5ms) for both AC and DC
- Backplane Current Load: 195mA at 5V DC
- Power Dissipation: Maximum of 8.8 Watts
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Wiring Arm: Utilizes the 1771-WH field wiring arm for simplified installation and maintenance
Applications
The 1771-IAD/B module is ideal for interfacing with discrete devices such as pushbuttons, switches, and auxiliary contacts from relays and contactors. Its ability to process both AC and DC signals makes it suitable for diverse industrial automation systems requiring reliable and efficient input processing.
Package Details
This offering includes a lot of four (4) Allen-Bradley 1771-IAD/B input modules, providing a cost-effective solution for expanding input capacity in your control system.
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