• Allen-Bradley 1771-IBD
  • Allen-Bradley 1771-IBD
  • Allen-Bradley 1771-IBD
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Allen-Bradley 1771-IBD PLC-5 16-Point Digital DC Input Module

Allen-Bradley 1771-IBD PLC-5 16-Point Digital DC Input Module

The Allen-Bradley 1771-IBD is a 16-point digital DC input module designed for the 1771 I/O product family, commonly utilized in PLC-5 control systems. This module provides 16 sink-type input channels...

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SKU: 1771-IBD
Proveedora: Allen-Bradley
tipo: Digital Input Module
Related Series:

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The Allen-Bradley 1771-IBD is a 16-point digital DC input module designed for the 1771 I/O product family, commonly utilized in PLC-5 control systems. This module provides 16 sink-type input channels with an operating voltage range of 10 to 30V DC, making it suitable for monitoring various field devices such as limit switches, pushbuttons, and auxiliary contacts.

Features

  • 16-channel digital DC input configuration.
  • Operating voltage range: 10 to 30V DC.
  • Sink input type (source load).
  • Includes 18 LED status indicators: 16 for individual channel status and 2 for module/communication health.
  • Equipped with a 1771-WH field wiring arm to facilitate modular maintenance and replacement without disconnecting field wiring.
  • Optoelectrical isolation to protect backplane circuitry from electrical transients.
  • Integrated input filtering to minimize the impact of electrical noise on signal integrity.

Applications

  • Industrial Automation & Process Control: Interfacing field devices with PLC-5 systems.
  • Sensor & Switch Monitoring: Detecting ON/OFF states from binary devices.
  • Material Handling: Monitoring status in conveyor and automated logistics systems.
  • Machine Monitoring: Data acquisition for manufacturing status and diagnostic reporting.

Technical Specifications

Model 1771-IBD
Inputs per Module 16
Input Voltage Range 10 to 30V DC
Minimum On-state Voltage 10V DC
Maximum Off-state Voltage 5V DC
Backplane Current Load 130mA @ 5V DC
Power Dissipation 7.3W (max) / 1.0W (min)
Thermal Dissipation 24.7 BTU/hr (max)
Input Impedance 2.2K ohms (max)

Installation Guidelines

  • Chassis Compatibility: Compatible with most 1771 I/O chassis, excluding 1771-A1, 1771-A2, and 1771-A4.
  • Power Status: Always power down the I/O chassis before inserting or removing the module to prevent electrical damage.
  • Keying: Install plastic keying bands between pins 10 and 12, and between pins 16 and 18, to ensure correct slot alignment.
  • Mounting: Align the module with the chassis card guides and apply firm, even pressure until the module is fully seated in the backplane. Secure the module using the integrated chassis latch.
  • Wiring: Utilize the 1771-WH wiring arm for signal termination. Ensure screw terminals are tightened to 7-9 inch-pounds.

FAQs

What is the 1771-IBD?

The 1771-IBD is a 16-channel discrete DC input module designed to interface field-level binary signals with Allen-Bradley PLC-5 systems.

Can I replace the module without rewiring?

Yes, the included 1771-WH wiring arm allows you to remove the module from the chassis while leaving the field wiring connected to the arm, significantly reducing downtime during maintenance.

What are the keying requirements for this module?

To prevent incorrect module insertion, keying bands must be placed between pins 10-12 and 16-18 on the backplane connector.