Allen-Bradley 1747-BA Battery — Reliable Memory Power for Industrial Automation

In industrial automation systems, ensuring continuous and reliable operation of programmable logic controllers (PLCs) is paramount. The Allen-Bradley 1747-BA battery plays a critical role in maintaining memory retention, allowing PLCs to preserve essential program and data information during power interruptions. Designed specifically for Allen-Bradley SLC 500 series and related modules, this battery ensures operational integrity, enhances system reliability, and supports long-term industrial automation processes.

For engineers and automation professionals seeking detailed specifications and replacement guidance, www.ayingo.com provides authoritative information and technical resources.

1. Overview of 1747-BA Battery

The 1747-BA is a primary lithium battery engineered for industrial PLC applications. Its main function is to maintain the volatile memory within Allen-Bradley SLC 500 PLCs and associated modules, ensuring that program and configuration data are preserved during power outages. Unlike standard batteries, the 1747-BA offers extended shelf life and consistent performance under demanding industrial conditions.

By providing stable and reliable memory backup, this battery minimizes downtime, protects critical control data, and supports uninterrupted industrial operations.

2. Technical Specifications

The 1747-BA battery features specifications optimized for industrial reliability:

Battery Type: Primary lithium
Nominal Voltage: 3V DC
Capacity: Approximately 2.6 Ah
Operating Temperature: -20°C to +60°C
Shelf Life: Up to 10 years
Compatibility: Allen-Bradley SLC 500 series, 1746 I/O modules
Dimensions: Compact size for easy installation within PLC chassis
Certifications: UL recognized, IEC compliant

These specifications ensure that the battery can deliver long-lasting, consistent performance, making it ideal for environments with intermittent power or critical memory retention needs.

3. Importance in PLC Operation

In SLC 500 PLCs, volatile memory stores user programs, configuration data, and system parameters. Without a reliable battery, this data may be lost during power interruptions, leading to system downtime, loss of productivity, and potential operational hazards. The 1747-BA ensures:

Memory Preservation: Retains critical programs and configuration data
Continuous Operation: Minimizes downtime during unexpected power losses
Data Integrity: Protects PLC logic, I/O assignments, and system parameters
Reduced Maintenance: Extended life reduces frequent battery replacements

By maintaining memory integrity, the 1747-BA battery supports uninterrupted control processes, crucial in automated industrial systems.

4. Installation and Replacement Guidelines

Proper installation and replacement of the 1747-BA battery are essential for optimal performance:

Power Down: Ensure the PLC is powered off before replacing the battery.
Access Battery Compartment: Locate the battery holder within the SLC 500 module.
Insert Battery Correctly: Observe polarity markings and secure the battery.
Power Up PLC: After installation, power on the PLC and verify memory retention.
Data Backup: Although the battery preserves volatile memory, it is recommended to maintain offline program backups.

Following these procedures ensures safe and effective operation while maximizing battery life and performance.

5. Extended Shelf Life and Industrial Reliability

The 1747-BA battery is designed for long-term reliability, with a shelf life up to 10 years. Its lithium chemistry allows consistent voltage output, even under extreme temperatures and environmental conditions. This durability makes it suitable for harsh industrial settings, including factories, process plants, and remote automation installations.

Furthermore, the battery’s robust design minimizes leakage, corrosion, or other failures, ensuring safe operation within PLC modules.

6. Safety Considerations

Safety is paramount when handling and installing industrial batteries. The 1747-BA battery should be:

Stored in a cool, dry environment away from flammable materials
Handled using protective gloves if necessary
Installed following manufacturer guidelines to prevent short circuits
Disposed of according to local battery recycling and hazardous material regulations

Adhering to these safety measures ensures operational safety and extends the battery’s service life.

7. Applications

The Allen-Bradley 1747-BA battery is essential across multiple industrial applications:

Manufacturing Automation: Protects PLC memory in assembly lines and robotic cells
Process Control: Maintains critical data in chemical, water treatment, and energy systems
Material Handling: Ensures uninterrupted logic control in conveyors and sorting systems
Utilities and Facilities Management: Supports energy management, HVAC, and pump control PLCs
Remote or Harsh Environments: Provides reliable memory retention where power supply may be intermittent

Its versatility ensures that the 1747-BA is suitable for a wide range of PLC-dependent industrial systems.

8. Conclusion

The Allen-Bradley 1747-BA battery is a vital component for maintaining memory integrity in SLC 500 PLCs and related modules. Its long life, industrial reliability, and robust safety features make it indispensable for engineers seeking consistent performance and reduced operational risk. By preserving program and system data, this battery ensures uninterrupted control, minimizes downtime, and supports efficient industrial automation.

For further information, installation guidance, and detailed specifications, engineers and automation professionals can refer to www.ayingo.com, a trusted source for Allen-Bradley components and industrial automation solutions.