Excellent PLC
Product Introduction
The Allen-Bradley 1771-OBD Digital DC Output Module is a high-performance DC output module designed for the PLC-5 1771 I/O system by Allen-Bradley. It provides reliable control of DC-powered field devices, converting PLC digital signals into precise DC outputs for industrial automation applications.
This module features 16 output points, each capable of handling up to 2 A resistive current and pilot duty operation. The total module current is rated at 8 A, and it supports a 10–60 VDC output range. Designed for fast and stable operation, it draws 400 mA from the 5 VDC backplane, ensuring efficient integration with other 1771 modules.
Installed in a 1771 I/O chassis, the 1771-OBD module is ideal for controlling DC motors, solenoids, relays, and other DC devices in industrial systems where precise digital output is required.
Product Specifications
| Parameter | Description |
|---|---|
| Product Name | Allen-Bradley 1771-OBD Digital DC Output Module |
| Manufacturer | Allen-Bradley |
| Series | 1771 PLC-5 I/O System |
| Module Type | Digital DC output module |
| Number of Outputs | 16 points |
| Output Voltage Range | 10–60 VDC |
| Max Current per Output (Resistive) | 2 A |
| Max Current per Output (Pilot Duty) | 0.2 A |
| Max Current per Module | 8 A |
| Backplane Current | 400 mA @ 5 VDC |
| Dimensions | 165 × 51 × 89 mm |
| Weight | 0.84 kg |
Applications
● Industrial DC Load Control
Operates DC motors, solenoids, and relays under PLC-5 control.
● PLC-5 Automation Systems
Translates digital commands from the PLC into precise DC output signals.
● Manufacturing and Production Lines
Controls DC-powered devices for automated process operations.
● Energy and Utility Systems
Switches DC actuators and field devices used in energy distribution and power management.
● Instrumentation and Test Systems
Provides reliable DC output for precise control of devices in laboratory and industrial setups.
Advantages
● High Number of Outputs
16 output channels allow simultaneous control of multiple devices.
● Wide DC Voltage Range
Supports 10–60 VDC to meet various industrial control requirements.
● High Current Capacity
Up to 2 A per output for resistive loads and 0.2 A for pilot duty.
● Reliable Backplane Integration
Efficiently communicates with the PLC-5 processor, drawing only 400 mA.
● Fast and Stable Operation
Provides consistent digital DC output performance for accurate device control.
● Compact Modular Design
Fits easily into standard 1771 I/O chassis for flexible system configuration.
