Allen-Bradley 1771-OBDS | PLC 5 Digital DC Output Module

Product Overview

The 1771-OBDS from Allen-Bradley / Rockwell Automation is a 16-output digital DC module in the PLC 5 series. It is designed for precise current-limited control of devices in industrial automation systems. This module ensures stable operation across multiple outputs while protecting circuits from overcurrent conditions.

This output module supports a DC operating voltage range of 10–40 Volts and provides up to 1 Amp per channel. Its data format supports both BDC and Natural Binary, offering flexible integration with PLC systems. The module features conformal coating for enhanced durability and a 1771-WH wiring arm for reliable connections.

The 1771-OBDS is rack-mountable and optimized for thermal efficiency, dissipating up to 47.8 BTU/hr under maximum load. Its fast response times, 50 ms typical DC signal delay, and 45 ±15 ms AC signal delay ensure precise timing in control applications.

Technical Specifications

Key Features

• 16 Current-Limiting DC Outputs: Protects circuits while controlling connected devices efficiently.

• Flexible Data Formats: Supports both BDC and Natural Binary for seamless PLC integration.

• Fast Signal Response: 50 ms DC signal delay ensures timely operation in automated processes.

• Durable Construction: Conformal coating and quality wiring arm enhance module longevity.

• Rack-Mountable: Easily integrates into existing PLC 5 racks for modular control expansion.

Applications

• Industrial machinery and process control requiring precise DC output.

• Automation systems where current-limiting protection is essential.

• Integration with Allen-Bradley PLC 5 series for expanded digital output capability.

• High-density control applications demanding reliable timing and thermal performance.

FAQ

Q1: Is the 1771-OBDS new and original?
Yes, the 1771-OBDS is factory-new, original Allen-Bradley equipment.

Q2: What voltage range does it support?
It operates from 10 to 40 VDC, suitable for most industrial control applications.

Q3: How many outputs are available per module?
The module provides 16 individually current-limited DC outputs.

Q4: What is the maximum current per output?
Each output supports up to 1 Amp continuous current.

Q5: How is the module mounted?
The 1771-OBDS is rack-mountable and designed for PLC 5 systems.