ABB SD 802F Redundant Power Supply Module

The ABB SD 802F is a high-reliability 24V DC redundant power supply module engineered for use with the AC 800F controller, a key component of the ABB Freelance Distributed Control System (DCS). It ensures uninterrupted operation and robust protection in demanding industrial automation environments.

Key Functions and Features

• Redundant Power Input
Supports dual 24V DC power inputs for redundancy. If one power source fails, the module automatically switches to the other, ensuring continuous operation of the AC 800F controller and associated modules.

• Regulated Output Voltages
Delivers stabilized 3.3V DC and 5.0V DC outputs to power the CPU motherboard and other system modules.

• Power Failure Detection and Protection

• Continuously monitors input and output voltages

• Sends power failure signals to the AC 800F CPU module

• Includes overcurrent and short-circuit protection

• Maintains output for at least 20 ms during power loss, allowing for a safe, controlled CPU shutdown and preserving data integrity

• Industrial-Grade Design
Features EMC filtering to ensure electromagnetic compatibility and stable performance in harsh industrial environments.

• Diagnostic Capabilities
Equipped with a diagnostic interface and EEPROM for storing system diagnostics, making maintenance and troubleshooting more efficient.

• Compact and Modular
Part of the AC 800F architecture, it supports a compact footprint and modular configuration for flexible system integration.