32-Point AC Output 1771-OAN Allen Bradley PLC-5

Product Overview

The Allen-Bradley 1771-OAN is a 32-point digital AC output module for the PLC-5 platform. It provides four groups of eight 120/240 V AC outputs rated at 1 A each, designed for high-density control of AC loads in industrial automation applications.

Technical Specs

• Output points: 32 (4 groups of 8)
• Voltage category: 85-264 V AC (nominal 120/240 V AC)
• Max continuous current: 1.0 A per output at 30 °C, 0.3 A at 60 °C
• Max current per module: 8 A
• Backplane current: 800 mA @ 5 V DC
• Operating frequency: 47-63 Hz
• Signal delay: 1 ms off-to-on, 9.3 ms on-to-off at 60 Hz
• Power dissipation: 16.2 W max
• Wiring arm: 1771-WH

Key Features

• High-density 32-point design reduces rack space per output point
• Internally fused groups for easy maintenance
• 32 status LEDs for real-time output monitoring
• Conformal coating protects against environmental factors

FAQ

• What is the surge current rating? 10 A for 25 ms at 1 Hz repetition.
• Which wiring arm is required? The 1771-WH 21-terminal wiring arm.
• Is it compatible with all 1771 chassis? Yes, it installs in 1771-A1B through A4B and later chassis.

Installation Guide

1. Power down the 1771 I/O chassis.
2. Insert the module into any slot except the leftmost.
3. Attach the 1771-WH wiring arm and connect AC load wiring.
4. Configure the chassis for 1-slot addressing.
5. Apply power and verify output status LEDs respond to program commands.

Selection Tips

• Select 1771-OAN for high-density 120/240 V AC output applications.
• For 8-point AC outputs with higher current (2 A), choose the 1771-OA.
• Verify total module current does not exceed 8 A.