Allen-Bradley 1771-IA PLC-5 Input Module -NIB

The Allen-Bradley 1771-IA is a digital AC input module designed for use in PLC-5 systems. It is part of the Allen-Bradley 1771 series of I/O modules, providing reliable and efficient input processing for industrial automation.

Key Features:

1. Voltage Range:

   • Input voltage: 100-120V AC.
   • Frequency: 47-63 Hz.

2. Number of Inputs:

   • 16 inputs per module.

3. Input Type:

   • Digital inputs (AC signals).

4. Current Ratings:

   • Nominal input current: Approximately 10 mA per input at 120V AC.

5. Signal Indicators:

   • LED indicators for each input channel to show signal status.

6. Isolation:

   • Optical isolation between field devices and PLC backplane for enhanced safety and noise immunity.

7. Backplane Current Draw:

   • Requires power from the PLC-5 chassis backplane, with a backplane current draw of approximately 50 mA.

8. Compatibility:

   • Designed to work with PLC-5 programmable controllers and the 1771 chassis.

9. Environmental Ratings:

   • Operating temperature: 0°C to 60°C (32°F to 140°F).
   • Storage temperature: -40°C to 85°C (-40°F to 185°F).

Applications:

• Industrial automation systems for monitoring and processing AC input signals.
• Use in manufacturing, process control, and other industrial environments where PLC-5 systems are employed.