Description
ABB SS832 3BSC610068R1
I. Overview
ABB SS832 3BSC610068R1 is a power voting unit, with its core positioning as a redundant power supply switching and stable supply unit for automation systems. Belonging to the ABB safety control product series, it is specially designed for industrial scenarios with high reliability requirements. This unit mainly undertakes the functions of monitoring, voting and switching of two-channel 24V DC power supplies. It can integrate two input power supplies into one stable output, and has fault diagnosis and alarm capabilities at the same time. When an abnormality occurs in a single power supply, it can quickly switch to the backup power supply, ensuring continuous power supply for downstream safety loops and control modules, and serving as a key power supply component to guarantee the uninterrupted operation of automation systems.
II. Core Features
Two-channel Redundant Power Supply Voting & Switching: Supports two-channel 24V DC input power supplies (rated current of 10A per channel), with a built-in voting logic circuit that can monitor the status of the two power supplies in real time. When abnormalities such as undervoltage or power failure occur in the main power supply, it switches to the backup power supply within milliseconds without voltage fluctuation during the switching process, ensuring uninterrupted power supply for downstream equipment and improving the reliability of the system power supply.
Comprehensive Fault Diagnosis & Alarm: Equipped with a complete built-in fault detection circuit, it can monitor power supply voltage, communication status and internal circuit operation in real time, accurately identify fault types such as power supply timeout, invalid installation position, undervoltage and data synchronization abnormality. It feeds back signals to the control system and triggers alarms, facilitating maintenance personnel to quickly locate problems.
Industrial-grade Compliance & Stable Protection: Complies with the EU RoHS Directive (2011/65/EU), classified as a small equipment category (no external dimension exceeding 50cm), with no built-in battery, ensuring high safety in use. It has good anti-electromagnetic interference capability and voltage fluctuation adaptability, can resist the impact of harsh working conditions in industrial sites, and features strong operational stability.
Compact Installation & Convenient Adaptation: Adopts TS35 DIN rail mounting, with a compact structure (dimensions only 32mm in width × 125mm in height × 117mm in depth) and a net weight of only 0.45kg, which can efficiently utilize the internal space of the control cabinet. It requires no complex parameter configuration, supports plug-and-play, is compatible with ABB and third-party automation control systems, and has strong adaptability.
- Safe Power Supply & Circuit Protection: The output terminal is equipped with overload and short-circuit protection functions, which can effectively avoid damage to the power supply unit caused by downstream equipment faults. The two input channels are monitored independently; in case of a fault, only the power supply path is switched without affecting the internal core circuit, extending the service life of the equipment.
III. Technical Parameters
| Parameter Name | Specification |
|---|---|
| Product Model | ABB SS832 3BSC610068R1 |
| Product Type | Industrial-grade power voting unit (redundant power supply switching and supply) |
| Input Parameters | Two-channel 24V DC input, rated current of 10A per channel, supporting redundant power supply |
| Output Parameters | Single-channel 24V DC output, rated current adapted to downstream load requirements, no voltage fluctuation during switching |
| Dimensions | 32mm (W) × 125mm (H) × 117mm (D) |
| Product Weight | Net weight approx. 0.45kg |
| Installation Method | TS35 DIN rail mounting |
| Environmental Adaptability | Operating temperature -25℃~+60℃, relative humidity 5%~95% (non-condensing), no built-in battery |
| Fault Detection | Supports detection of faults such as power supply timeout, undervoltage, invalid installation position, data synchronization abnormality, CRC error, etc. |
| HS Code | 850440 (Electrical transformers, static converters, inductors - Static converters) |
IV. Working Principle
ABB SS832 3BSC610068R1 power voting unit realizes stable supply and abnormal switching of redundant power supplies based on the core working process of two-channel monitoring - voting judgment - switching output - fault feedback. The specific working process is divided into four core stages:
Through the built-in voltage detection circuit, the unit synchronously monitors the voltage value, current stability and power supply status of the two 24V DC input power supplies, converts the monitoring data into electrical signals and transmits them to the internal voting logic module, and filters voltage clutter at the same time to ensure the accuracy and reliability of the monitoring data.
According to the preset thresholds (such as the lower voltage limit), the voting logic module judges the status of the two power supplies. Under normal working conditions, it prioritizes the main power supply as the output source while keeping the backup power supply in standby mode. When undervoltage, power failure or other faults are detected in the main power supply, it immediately triggers a voting switching command to ensure the accuracy of the switching decision.
Upon receiving the switching command, the built-in switching circuit of the unit acts quickly, switching the output path from the main power supply to the backup power supply within milliseconds. During the switching process, the output voltage is kept stable without power interruption or fluctuation, ensuring the continuous and normal operation of downstream safety modules, PLC and other equipment. At the same time, it monitors the load status of the output terminal in real time to avoid overload and short-circuit risks.
