ABB AC500 PLC Hardware Manual page 1225

2.5.5.3 TA561-RTC - Real-time Clock Adaptor
Intended Pur- The TA561-RTC real time clock adaptor is used for equipping AC500-eCo processor modules
pose with a real-time clock.
The real time clock can be buffered via an optional standard lithium battery (CR2032) during
power supply failures (see lithium battery for real-time clock of AC500-eCo processor modules
Ä Chapter 2.5.5.7 "CR2032 - Battery for Real-Time Clock" on page 1240).
Insertion and
Replacement of
the Adaptor
Insertion/ removal of the adaptor and replacement of the battery is also described in the installa-
tion instruction for TA561-RTC. See https://new.abb.com/products/ABB1SAP181400R0001 or
use the QR code.
Click tab "Documentation" and select "Operating Instruction" .
The option cover is available as a spare part (see TA570 spare part set for AC500-eCo pro-
cessor modules
Replacement of
the Battery
2019/04/17
WARNING!
Risk of electric shock!
With an opened option cover, energized parts of the processor module could be
touched.
– Always turn off and disconnect the power supply for the processor module
before you open the option cover.
– Make sure that the option cover is closed before reconnecting the processor
module to the power supply.
Ä Chapter 2.5.5.12 "TA570 - Spare Part Set" on page 1247).
WARNING!
Risk of death by electric shock!
The terminals of the module can carry 240 V voltage.
Make sure that all voltage sources (supply and process voltage) are switched
off before you begin with operations at the system.
3ADR010121, 13, en_US
System Assembly, Construction and Connection
AC500-eCo > Handling of Accessories
1225