1.8.2.5 TA541 - Lithium Battery
● Manganese dioxide lithium battery, 3 V
● Non-rechargeable
The TA541 lithium battery is the only applicable battery for PM595
Ä
Chapter 1.2.2.2 “PM595”
on page 80. It is used to save RAM content of the processor module (PM595-4ETH-F only) and
to back-up the real-time clock (all PM595 variants). It cannot be recharged.
The processor modules are supplied without a lithium battery. It therefore must be ordered sep-
arately. The TA521 Lithium Battery is used to save RAM contents of AC500 processor modules
and back-up the real-time clock. Although the processor modules can work without a battery, its
use is still recommended in order to avoid process data being lost.
The CPU monitors the discharge degree of the battery. A warning is output, before the battery
condition becomes critical (about 2 weeks before). After the warning message has appeared,
the battery should be replaced as soon as possible.
● Do not short-circuit or re-charge the battery! It can cause excessive heating and explosion.
● Do not disassemble the battery!
● Do not heat up the battery and not put into fire! Risk of explosion.
● Store the battery in a dry place.
● Replace the battery with supply voltage ON in order not to risk data being lost.
● Recycle exhausted batteries meeting the environmental standards.
The battery lifetime is the time the battery can store data while the CPU is not powered. As long
as the CPU is powered, the battery will only be discharged by its own leakage current.
Parameter Value
Nominal voltage 3 V
Nominal capacity 1800 mAh
Temperature range Operating: -40 °C...+70 °C
Storage: -40 °C...+85 °C
Transport: -40 °C...+85 °C
Purpose
Handling
Instructions
Battery Lifetime
Technical Data
Accessories > AC500 (Standard)
2019/04/17 3ADR010121, 13, en_US 1153
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