1770-XYC Allen-Bradley PLC-5 Lithium Battery Assembly Unit

Overview

The Allen-Bradley 1770-XYC is a lithium battery backup assembly designed for PLC-5 processor systems. It provides memory retention support during power loss and ensures stable preservation of system configuration data. The unit integrates a Panasonic lithium cell and is engineered for use exclusively within compatible PLC-5 controller architectures.

Electrical Characteristics

• Nominal Battery Voltage: 3 V DC

• Capacity: 1800 mAh (lithium primary cell assembly)

• Connection Type: Two-wire lead with keyed connector

• Designed for low-current backup power applications supporting volatile memory retention

System Compatibility & Function

• Intended for Allen-Bradley PLC-5 processor platforms

• Provides backup power for RAM and system configuration retention

• Not interchangeable with non-lithium or mixed battery chemistries

• Incorrect battery substitution may result in data loss or system malfunction

Design & Safety Features

• Factory-assembled lithium battery module with integrated connector

• Non-hazard classification under standard industrial handling conditions

• Sealed construction to reduce leakage and contamination risk

• Stable discharge profile optimized for long-term standby operation

Electrical Context (System Reference)

Although not a primary power module, the 1770-XYC supports systems operating within:

• Input system environments: 120 V AC or 220/240 V AC PLC power architectures

• Frequency compatibility: 50–440 Hz system environments

• Designed for indirect support of processor memory circuits rather than load power delivery

Physical Characteristics

• Weight: 0.13 lbs

• Compact form factor designed for internal PLC rack installation

• Standalone mounting within processor battery compartment

Engineering Notes

• Battery replacement should follow PLC-5 maintenance procedures

• Shelf life and service life depend on ambient temperature and usage conditions

• Recommended periodic inspection to ensure memory backup reliability

• Avoid mixing with alternative battery chemistries in the same system

Applications

• PLC-5 processor memory backup

• Industrial control system data retention

• Legacy Allen-Bradley control platform maintenance

• Critical system configuration preservation

• Replacement battery assemblies for installed PLC-5 racks

FAQ

Q1: Can this battery be replaced with a generic lithium cell?
No, only compatible assemblies should be used to ensure system reliability and safety.

Q2: What happens if the battery fails?
Loss of power backup may result in loss of stored program or configuration data.

Q3: Is this battery rechargeable?
No, it is a primary lithium battery designed for non-rechargeable standby use.