Application Scenarios
A food processing plant experienced recurring production delays after brief power flickers. Their CompactLogix L32E controllers would lose recipe data and fault, requiring operators to manually reload programs and re-enter parameters, causing an average of 45 minutes of downtime per event. By proactively replacing the aging 1769-BA batteries during a scheduled maintenance window, the plant eliminated these data-loss incidents. The new batteries ensured that upon power restoration, the controllers resumed operation instantly with all production parameters intact, addressing the critical pain point of unplanned downtime and data volatility.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 1769-BA |
| Manufacturer | Rockwell Automation (Allen-Bradley) |
| Product Category | Controller Memory Backup Battery |
| Battery Chemistry | Lithium Manganese Dioxide (Li-MnO₂) |
| Nominal Voltage | 3 V DC |
| Typical Capacity | ~850 mAh (Varies by manufacturer lot) |
| Battery Cell Type | Standard CR2032 Coin Cell (Housed in Assembly) |
| Compatible Controllers | CompactLogix 1769-L2x, 1769-L3x Series (e.g., L32E, L35E) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -20°C to 60°C (Recommended < 25°C for long shelf life) |
| Estimated Service Life | 2-5 years (Highly dependent on power-off duration & temperature) |
| Connection | 2-pin Polarized Connector (Keyed) |
| Status Indication | Monitored by Controller (BATT LED) |
Technical Principles and Innovative Values
The 1769-BA is more than a simple battery; it is an integrated safety component for industrial control systems.
- Innovation Point 1: Data Integrity Assurance: Unlike consumer-grade batteries, the 1769-BA is engineered for industrial environments where data loss equates to production loss. It provides a stable, low-self-discharge power source specifically for the controller’s volatile memory (RAM), ensuring that complex machine states and production counters are preserved during unexpected outages.
- Innovation Point 2: Hot-Swap Maintenance Design: The assembly is designed for replacement while the controller is powered (Hot-Swap). This allows for proactive battery maintenance during short production breaks without requiring a full system shutdown, maximizing equipment uptime.
- Innovation Point 3: Factory-Calibrated Monitoring: The controller continuously monitors the battery voltage. When the voltage drops below a threshold (typically indicating end-of-life), the controller illuminates a red BATT LED and can trigger a major fault in the software. This proactive warning system provides a maintenance window to replace the battery before an actual data loss occurs.
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