ABB Advant AC500 Manual page 23

Insertion of the battery:
1. Open the battery compartment by inserting a fingernail in the small locking mechanism, press it
down and slip down the door. The door is attached to the front face of the CPU and cannot be
removed.
2. Remove the TA521 battery from its package and hold it by the small cable.
3. Insert the battery connector into the small connector port of the compartment. The connector is
keyed to find the correct polarity (red = plus-pole = above).
4. Insert first the cable and then the battery into the compartment, push it until it reaches the bottom
of the compartment.
5. Arrange the cable in order not to inhibit the door to close.
6. Pull-up the door and press until the locking mechanism snaps.
Note: In order to prevent data losses or problems, the battery should be replaced after 3 years of
utilisation or at least as soon as possible after receiving the "Low battery warning" indication.
Do not use a battery older than 3 years for replacement, do not keep batteries too long in stock.
Replacement of the battery:
Attention: In order to avoid any data losses (if needed), the battery replacement should be done
with the system under power. Without battery and power supply there is no data buffering possible.
1. Open the battery compartment by inserting a fingernail in the small locking mechanism, press it
down and slip down the door. The door is attached to the front face of the CPU and cannot be
removed.
2. Remove the old TA521 battery from the battery compartment by pulling it by the small cable.
Remove then the small connector from the socket, do this best by lifting it out with a screwdriver
(see photo).
3. Follow the previous instructions to insert a new battery.
Attention: Lithium batteries must not be re-charged, not be disassembled and not be disposed of
in fire. They must be stored in a dry place. Exhausted batteries must be recycled to respect the
environment.
The technical data sheet for the Lithium battery can be found in the chapter "Accessories / Lithium
Battery TA521".
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V2
AC500 Hardware 1-23 System data
AC500 / Issued: 05.2007