Allen Bradley 1771-IAD /C 120V AC/DC Input Module

Allen-Bradley 1771-IAD/C 120V AC/DC Input Module

The Allen-Bradley 1771-IAD/C is a 16-point digital input module designed for industrial automation systems. It is compatible with both 120V AC and 125V DC input signals, making it versatile for various applications.

Key Features

• Input Channels: 16 discrete inputs
• Voltage Compatibility: Operates within a range of 79-138V AC and 79-138V DC
• Signal Delay: Typical AC signal delay is 5 ms (±3 ms); DC signal delay is selectable between 3 ms (±0.1 ms) or 10 ms (±1 ms)
• Backplane Current: Requires 195 mA at 5V DC
• Wiring Arm: Utilizes the 1771-WH wiring arm for secure connections

Installation and Compatibility

The 1771-IAD/C module is designed for installation in Allen-Bradley 1771 series chassis, including models A1B, A2B, A3B, A3B1, A4B, AM1, and AM2. It provides opto-electrical isolation to protect internal circuits and includes input filtering to reduce the effects of electrical noise.

Environmental Considerations

For optimal performance and protection, the module should be installed within a properly rated enclosure, such as IP54 or higher, depending on the environmental conditions.

Applications

This module is suitable for general-purpose 120V AC/DC input applications in industrial automation and control systems, offering reliable performance and integration within Allen-Bradley PLC-5 systems.