Allen-Bradley 1771-IAD SER D Input Module

This module converts AC or DC signals from devices such as proximity switches, limit switches, and pushbuttons into logic levels compatible with the PLC-5 system. It features input filtering to mitigate voltage transients caused by contact bounce or electrical noise, ensuring reliable signal processing. Each of the 16 input points is equipped with a status indicator LED for easy monitoring and troubleshooting. The module is compatible with 1771 I/O chassis, excluding the 1771-A1, 1771-A2, and 1771-A4 chassis. It requires a 10-terminal field wiring arm (cat. no. 1771-WA) for connections.

Features:

• Number of Inputs: 16
• Input Voltage Range: 79 to 138V AC/DC
• Nominal Input Voltage: 120V AC/DC
• Input Current: Approximately 10 mA per input at 120V
• Input Filtering Delay: Selectable 5 ms or 20 ms
• Status Indicators: 16 LEDs (one per input)
• Backplane Current Consumption: 195 mA
• Operating Temperature Range: 0°C to 60°C (32°F to 140°F)
• Compatibility: Compatible with 1771 I/O chassis, except 1771-A1, 1771-A2, and 1771-A4