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Application Scenarios:In a high-speed bottling line controlled by an ABB AC500 PLC, a sudden loss of power—even for just a few seconds—can cause the controller to lose its program and all runtime data, including counters, batch information, and machine states. Restarting requires a full reload and manual re-homing, causing significant production delay. The ABB SB822 3BSE018172R1 battery unit is installed to prevent this. Connected to the controller’s backup power input, it continuously charges from the system’s 24VDC bus. When a main power failure occurs, the SB822 instantly and seamlessly takes over, supplying power to the controller’s CPU and memory. This allows the controller to retain its program and critical data for a designated period (often 24-72 hours), enabling an immediate and orderly restart once power is restored, eliminating lengthy recommissioning and maximizing production uptime.
Parameter:
| Main Parameters | Value / Description |
|---|---|
| Product Model | SB822 (Series), 3BSE018172R1 (Article Code) |
| Manufacturer | ABB |
| Product Category | Integrated Battery Backup Unit / Memory Backup Module |
| Output Voltage | 24 VDC (regulated) |
| Battery Type | Integrated, maintenance-free sealed lead-acid (SLA) or lithium (Li-ion) battery |
| Nominal Capacity | e.g., 1.2Ah, 2.5Ah, 7.0Ah (specific to variant, determines backup time) |
| Backup Time | Duration varies with load; typically designed to maintain controller memory for days to weeks |
| Charging Circuit | Built-in intelligent charger with temperature compensation and float/cycle modes |
| Input Voltage | 24 VDC (from system power supply, e.g., SA167), with wide input range for charging |
| Status Indication | LED indicators for status: Power OK, Battery OK, Fault/Replace Battery |
| Communication | May include a relay contact or signal to indicate “Battery Low” to the controller |
| Operating Temperature | Designed for industrial temperature ranges (e.g., 0°C to +60°C) |
| Mounting | DIN-rail mounting or direct mounting within a control cabinet |
| Expected Service Life | Typically 3-5 years, depending on ambient temperature and cycling |
Technical Principles and Innovative Values:The ABB SB822 3BSE018172R1 integrates battery management into a robust, automation-optimized package, moving beyond a simple external battery.
Intelligent Charging & Battery Health Management: The unit incorporates a smart charging circuit. It applies a correct multi-stage charge profile (bulk, absorption, float) and includes temperature compensation to optimize charging voltage based on ambient conditions. This sophisticated management significantly extends the service life of the internal battery compared to a basic constant-voltage charger, reducing total cost of ownership and improving reliability.
