Allen Bradley 1756-OB16I /A

Allen-Bradley 1756-OB16I ControlLogix DC Output Module

The Allen-Bradley 1756-OB16I is a 16-point individually isolated DC output module designed for the ControlLogix system. It provides reliable and flexible control for various industrial applications.

Key Features

• Individually Isolated Outputs: Each of the 16 outputs is individually isolated, allowing for independent operation and enhanced safety.
• Voltage Range: Operates within a voltage range of 10 to 30V DC, accommodating various industrial power requirements.
• Current Capacity: Supports up to 2 A per point at 30°C (86°F) and 1 A per point at 60°C (140°F), with a linear derating.
• Output Delay Times: Features a maximum off-to-on delay of 1 ms and an on-to-off delay of 2 ms, ensuring prompt response times.
• Backplane Current: Draws 350 mA at 5.1V DC and 2.5 mA at 24V DC, with a total backplane power consumption of 1.8 W.
• Power Dissipation: Maximum power dissipation of 3.6 W at 60°C (140°F), contributing to efficient energy use.
• Thermal Dissipation: Generates 12.28 BTU/hr, aiding in thermal management within control panels.
• Surge Current Handling: Capable of handling surge currents up to 4 A for 10 ms per point, repeatable every 2 seconds.
• Minimum Load Current: Requires a minimum load current of 1 mA per point, ensuring proper operation even with low-power devices.
• On-State Voltage Drop: Maximum on-state voltage drop of 1.2V DC at 2 A, maintaining efficient power delivery.
• Off-State Leakage Current: Maximum off-state leakage current of 0.5 mA per point, minimizing unintended current flow.
• Isolation Voltage: Provides 250V continuous isolation between outputs, enhancing system safety and reliability.
• Module Keying: Features electronic, software-configurable keying for simplified installation and configuration.
• Removable Terminal Block: Compatible with 1756-TBCH and 1756-TBS6H terminal blocks, facilitating easy wiring and maintenance.

Applications

The 1756-OB16I module is ideal for controlling various DC-powered devices such as solenoids, relays, and indicator lamps in industrial automation systems. Its individually isolated outputs provide flexibility and safety in complex control scenarios.

Installation and Configuration

Designed for easy integration into the ControlLogix chassis, the module supports electronic keying and removable terminal blocks, streamlining the installation and configuration process. Proper surge protection is recommended when driving inductive loads to ensure longevity and reliability.

By incorporating the Allen-Bradley 1756-OB16I into your control system, you gain a robust and versatile solution for managing DC outputs in demanding industrial environments.