Manual EN
Uninterruptible Power Supply
V 1.0
Charge and control units
BLOCK Transformatoren-Elektronik GmbH
Max-Planck-Strasse 36-46, 27283
.
Verden, Germany
31.08.20 / SCH
Subject to technical changes
14
4.2
Battery tests
The charge and control unit performs various tests of the battery modules, depending on the
operating status. If irregularities are detected the corresponding warnings or malfunctions
are generated.
Charging status
In Normal Mode, the battery module is charged. During charging, the charging level is checked
every 60 seconds.
If the battery modules are charged < 85 %, the “Battery is being charged” status is signaled.
The yellow LED lights up and the “Bat. Charge” signal output is activated (only in factory
settings).
Presence test
The presence test detects whether the battery module is correctly connected and functional.
It is performed in Normal Mode. During the presence test, a small load is temporarily applied
to the battery modules in order to ensure correct connection of the battery module, function-
ality of the accumulators and an intact fuse.
The presence test is performed in Normal Mode with a charging current of < 1 A every 30
seconds, and with a charging current of > 1 A every 180 seconds. In the event of a negative
result the test is performed cyclically every 15 seconds.
If the result of the presence test is negative, the “Buffer mode is not possible” malfunction is
signaled. The red LED lights up and the “Alarm” signal output is activated (only in factory
settings).
Quality test
Accumulators have a limited operating life that can range from < 1-15 years depending on
the model and ambient temperature.
The remaining operating life of the accumulators is dynamically calculated in relation to the
ambient temperature in the battery model, where both “Bat. Control” control lines are con-
nected correctly. This test is performed every 10 minutes in Normal Mode. If the quality test
has a negative result, the “Battery replacement recommended” warning is generated. The red
LED flashes and the “Alarm” signal output is activated.
Note:
It is recommended that the battery module be replaced as quickly as possible after the
warning appears in order to maintain stable, ongoing buffer mode.
