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Rockwell Automation Allen-Bradley AADvance T9110 - Replace a Faulty Processor Back-Up Battery

Rockwell Automation Allen-Bradley AADvance T9110
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46 Rockwell Automation Publication ICSTT-RM406J-EN-P - February 2021
Chapter 5 Troubleshooting and Rectifying Module Faults
The following variables report a faulty battery:
• Processor Module A NVRAM Battery Health
• Processor Module B NVRAM Battery Health
•Processor Module C NVRAM Battery Health
The variable details are:
• Direction: input to application from controller
• Type: BOOLEAN
•Values:
• TRUE = the back-up battery in the 9110 processor module in the given
slot is present and its voltage is within acceptable limits.
Replace a Faulty Processor Back-up Battery
Use the following official Rockwell Automation battery or one of an
equivalent specification.
Part No and Description
T9905: Polycarbon monofluoride Lithium Coin Battery, BR2032
(recommended type), 20 mm dia; Nominal voltage 3 V; Nominal capacity
(mAh.) 190; Continuous standard load (mA.) 0.03; Operating temperature -30
°C to +80°C, supplied by Panasonic.
The battery has a design life of 10 years when the processor module is
continually powered; for processor modules that are un-powered, the design
life is up to 6 months.
NOTE For a new processor the backup battery is supplied separately
and must be installed into each new processor module.
Battery design life is based on operating at a constant 25 ° C and low
humidity (high humidity, temperature and frequent power cycles are all
factors that will shorten the batteries operational life).

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