Allen-Bradley Digital Input Module - PLC-5 Interface 1771-IA2
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Allen-Bradley 1771-IA2 Digital Input Module - Reliable AC/DC Signal Interface
Get precise signal control with the 1771-IA2 module. This digital input module connects your PLC-5 system to various field devices. Perfect for industrial automation applications requiring reliable AC/DC input handling.
Key Features
- Works with 120V AC/DC signals
- Easy module replacement with wiring arm
- 8 input points with status indicators
- Fast response times for real-time control
- Built-in protection against electrical noise
Technical Specifications
Brand: Allen-Bradley
Model: 1771-IA2 Series A
Module Type: Digital Input
Voltage Rating: 120V AC/DC
Input Points: 8 Points
Operating Voltage Range: 87-138V AC / 97-138V DC
Backplane Current: 75 mA
Power Dissipation: 10.7 Watts
Signal Delay AC: 24ms (±10ms)
Signal Delay DC: 10ms On / 20ms Off
Off-State Current: 2.8 mA max
Isolation: Optoelectrical
Dimensions: 3.5" x 6.5" x 2.0"
Installation Guide
Fits in 1771 I/O chassis
Uses 1771-WA wiring arm
½, 1, or 2-slot addressing
Keying bands between pins 10-12 and 4-6
Compatible Devices
AC/DC proximity switches
Pushbuttons and limit switches
Motor starters and pilot lights
PLC-5 control systems
Package Includes
1771-IA2 Input Module
1771-WA Wiring Arm
Installation guide
Warranty & Shipping
12 Months Warranty
Fast shipping with FedEx, UPS, DHL
Frequently Asked Questions
What devices can connect to the 1771-IA2 module?
The 1771-IA2 works with AC/DC proximity switches, pushbuttons, limit switches, and motor starters for various control applications.
How many input points does this module have?
This digital input module provides 8 input points for connecting multiple field devices simultaneously.
What is the operating voltage range for DC signals?
The 1771-IA2 operates with DC voltages from 97 to 138 volts DC for reliable performance.
Does the module include status indicators?
Yes, it features 8 orange status indicators for easy monitoring of each input point's status.
What protection features are included?
The module includes optoelectrical isolation and input filtering to protect against electrical transients and reduce noise.
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