• Allen-Bradley 1756-BA1 PLC
  • Allen-Bradley 1756-BA1 PLC
  • Allen-Bradley 1756-BA1 PLC
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Allen-Bradley 1756-BA1 ControlLogix and FlexLogix Lithium Battery Assembly

Allen-Bradley 1756-BA1 ControlLogix and FlexLogix Lithium Battery Assembly

The Allen-Bradley 1756-BA1 is a 3.0V DC lithium battery assembly designed to provide memory backup for ControlLogix, CompactLogix, and FlexLogix processor modules. This non-rechargeable battery is essential for maintaining user...

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SKU: 1756-BA1 PLC
Proveedora: Allen-Bradley
tipo: PLC Battery
Related Series:

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The Allen-Bradley 1756-BA1 is a 3.0V DC lithium battery assembly designed to provide memory backup for ControlLogix, CompactLogix, and FlexLogix processor modules. This non-rechargeable battery is essential for maintaining user programs, data tables, and system configuration settings in volatile RAM when the primary power source is removed or interrupted.

Features

  • Reliable 3V lithium manganese dioxide chemistry.
  • Pre-installed connector for direct integration with compatible controller chassis.
  • High-capacity cell design (1800 mAh) for extended memory retention.
  • Compact cylindrical form factor (2/3A size).
  • Essential for preventing data loss during power outages or maintenance cycles.

Applications

  • Process and Manufacturing Automation: Ensures continuity of logic and configuration data.
  • Safety Control Systems: Maintains critical state logic within safety-rated chassis.
  • High-Availability Operations: Facilitates rapid system restarts and minimizes downtime.
  • Motion and Drive Control: Retains positioning data and configuration parameters for servo systems.

Technical Specifications

Manufacturer Allen-Bradley (Rockwell Automation)
Model 1756-BA1
Battery Type Lithium Manganese Dioxide (2/3A)
Voltage 3.0V DC
Nominal Capacity 1800 mAh
Form Factor Cylindrical (14 x 34 mm)
Operating Temperature Recommended storage near 30 degC

Installation Guidelines

  • Ensure the controller is powered down before attempting to install or replace the battery module.
  • Route the battery cable carefully to the designated connector port on the ControlLogix controller chassis.
  • Avoid excessive heat; the service life of the battery is significantly reduced if the surrounding chassis temperature exceeds 30 degC.
  • Replace the battery every 2 years under normal conditions, or more frequently if the controller experiences frequent power cycles.
  • Handle with care to avoid short-circuiting the battery terminals.

FAQ

What is the primary function of the 1756-BA1?

The 1756-BA1 acts as a backup power source for volatile RAM in legacy Allen-Bradley controllers, ensuring that user logic and configuration data are not lost during power-down events.

Is this battery compatible with Series B controllers?

No. The 1756-BA1 is designed for specific legacy and Series A controllers. It features a large connector that is physically incompatible with Series B or later processors, which require the 1756-BA2 battery.

How long does the battery last?

Under normal conditions, the expected life is approximately 2 years. This duration may decrease to 3–6 months if the controller is frequently power-cycled or stored without backplane power.