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
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5.
Maintenance
5.1
Operating life of the battery modules
Closed, maintenance-free, lead fleece accumulators are installed in the PVA and PVAF series
battery modules, which are intended for use from -10 °C to +40 °C. Depending on the ambi-
ent temperature, the operating life of this battery module ranges from 5 years at 20 °C to
one year at 40 °C.
Alternatively, the battery modules from the PBAT series are available, which have mainte-
nance-free pure lead accumulators installed. These are intended for a temperature range of
-10 °C to +60 °C. Depending on the ambient temperature, the operating life of this battery
module ranges from 15 years at 20 °C to 4 years at 40 °C.
The remaining operating life is dynamically calculated depending on the ambient temperature
of the battery module, as long as both control lines are connected between the charge and
control unit and the battery module. In addition, the battery modules are cyclically loaded in
order to detect exceedance of a permitted voltage drop. In this way, conclusions can be drawn
about pre-damaged accumulators even before the end of their operating life.
5.2
Battery module storage
The battery modules are delivered in a pre-charged state in order to ensure immediate avail-
ability. The date when they were last charged is listed on the packaging. Commissioning
should take place at the latest within 9 months at 20 °C - 30 °C, and/or within 6 months at
30 °C - 40 °C after the most recent charging operation.
Attention:
Do not store battery modules overhead while they are in a switched off state.
When shipping or storing the UPS system, remove the associated device safeguard to protect
the battery modules from discharge.
