Allen-Bradley 1746-IA16 Input Module

Allen-Bradley 1746-IA16 SLC 500 AC Input Module

Core Technical Specifications

• Brand: Allen-Bradley
• Model: 1746-IA16
• Series & Type: SLC 500 Digital AC Input Module
• Input Channels: Sixteen (16) individually monitored points.
• Input Voltage Range: Accepts signals from 85 to 132 Volts AC.
• Operating Frequency: Designed for 47-63 Hz AC systems.
• Signal Response Time: ON delay of 35 ms max, OFF delay of 45 ms max.
• Backplane Current: Low consumption at 85 mA (5V DC).
• Power per Point: 0.27 to 0.425 Watts.

Key Features & Operation

• The 1746-IA16 converts the state of field devices (like limit switches) into data for the SLC 500 processor.
• It features a removable terminal block (20 terminals) for easy wiring and module replacement.
• All sixteen inputs share two internally connected common terminals (18 and 19).
• The module provides electrical isolation between field wiring and the controller's logic side.
• It has no internal protection circuitry; connected devices must be compatible with the input circuit's inrush current.
• This general-purpose module is essential for the PLC's input scan phase of program execution.

FAQ - Frequently Asked Questions

• Q: How many input points does the 1746-IA16 have?
  A: It provides 16 discrete AC input channels.
• Q: What voltage does it accept?
  A: It is designed for standard AC control voltages in the range of 85-132V AC.
• Q: What is the response time for an input signal?
  A: The module recognizes an ON signal within 35 milliseconds and an OFF signal within 45 milliseconds.
• Q: Do you have the 1746-IA16 in stock?
  A: Yes, we maintain stock of this common input module for quick shipment.
• Q: What is your shipping time and method?
  A: Orders ship within 5 business days via major carriers like DHL, FedEx, or UPS.
• Q: What is the return policy?
  A: We offer a straightforward 30-day return policy for your peace of mind.

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