Overview
Configured for backup power supply support and energy buffering in ABB 800xA and related control system architectures, the ABB SB822 3BSE018172R1 (SB822 battery unit) provides direct electrical energy retention and controlled discharge to maintain controller memory and system state retention during supply interruption events.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SB822 3BSE018172R1 |
| Brand | ABB |
| Origin | Switzerland / EU |
| Weight | Not specified in source documentation |
| Dimensions | Not specified in source documentation |
| Operating Temp | 0 to 55 deg C (typical cabinet installation range) |
| Power Consumption | Passive battery-based unit, no active consumption from backplane |
| Function | Backup battery / memory retention module |
| System Compatibility | ABB 800xA / AC 800M controller systems |
Battery Backup and System Retention Behavior
The SB822 functions as a DC energy storage element integrated into ABB control system power architecture. It maintains voltage supply to volatile memory circuits during primary power loss. Moreover, it supports controlled energy discharge behavior to preserve controller state data.
The unit connects through dedicated battery interface circuitry, ensuring stable voltage continuity without introducing switching transients. In addition, internal design supports predictable depletion characteristics under defined load conditions, allowing deterministic maintenance scheduling based on system diagnostics.
Frequently Asked Questions (FAQ)
Q: Does the SB822 support hot-swap replacement?
A: The unit is typically replaceable under controlled maintenance conditions. However, battery disconnection may cause temporary loss of memory retention support if no alternate backup path is present.
Q: Does the SB822 draw power from the system backplane?
A: No. The SB822 operates as an independent energy storage unit and does not impose measurable backplane electrical load during normal operation.
Q: How is battery status monitored by the system?
A: Battery condition is monitored through controller diagnostic channels that track voltage thresholds and discharge behavior within the power management subsystem.
Field Installation Guidelines
Install the SB822 within the designated ABB controller or power module compartment according to rack configuration rules. Ensure correct polarity alignment before connection to avoid reverse insertion conditions.
Keep battery terminals clean and free from oxidation before installation. Route associated wiring away from high-noise switching conductors to minimize induced interference on monitoring lines. Maintain proper grounding of the controller cabinet to ensure stable reference potential during battery operation.
Replacement should be performed under controlled maintenance procedures to prevent interruption of memory retention circuits. Avoid mechanical stress on connector interfaces during insertion or removal.
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