ABB DSSS171 3BSE005003R1 Voting Unit

The ABB DSSS171 3BSE005003R1 Voting Unit is an industrial component designed to enhance the reliability and safety of automation systems by implementing voting logic to process multiple input signals. This functionality ensures that the system responds only when a consensus is reached among the inputs, effectively mitigating the impact of potential faults or erroneous signals.

Input and Output Capacity: The unit supports up to 16 input signals and provides up to 4 output signals, facilitating versatile integration into various control systems.

Operating Voltage and Consumption: It operates on a 24 V DC supply with a maximum current consumption of 20 mA, ensuring energy efficiency and compatibility with standard industrial power systems.

Temperature and Humidity Tolerance: Designed to function in environments with temperatures ranging from -25°C to +60°C and relative humidity between 5% and 95% (non-condensing), the unit is suitable for diverse industrial settings.

Safety-Critical Systems: The voting unit is ideal for use in safety-critical applications, such as in chemical plants, power generation, and oil & gas industries. It ensures that only validated inputs influence critical control decisions, thus preventing erroneous actions that could lead to hazardous conditions.

The ABB DSSS171 3BSE005003R1 Voting Unit is designed for industrial automation systems that require high reliability and redundancy. It supports up to 16 input signals and provides up to 4 output signals based on a voting logic, ensuring that only consensus-driven actions are taken. Operating with a nominal voltage of 24 V DC and consuming a maximum of 20 mA, the unit is efficient and energy-saving. It has an operating temperature range of -25°C to +60°C and can function in environments with relative humidity between 5% and 95%. 

Physical Dimensions: With dimensions of 171 mm in width, 35 mm in height, and 171 mm in depth, and weighing approximately 200 grams, the unit's compact form factor allows for flexible installation options within control panels or enclosures.

Redundant Control Systems: In applications where multiple control systems are used for redundancy, the voting unit enables the comparison of inputs from different control channels. It ensures that the system responds only when multiple inputs agree, increasing system reliability and minimizing risks.

Certifications: The DSSS171 Voting Unit holds certifications from CE, UL, and CSA, ensuring compliance with international safety and quality standards.

Power Plant Automation: The unit is particularly useful in power plant automation systems where input signals from various monitoring and control devices need to be accurately processed to maintain stable operations and ensure safety.