Taking into operation
Once the battery connections have been made to the Module B
and after Module A2 is connected to the mains, Module B
is operational. Press the master switch to supply the 12 V
consumers.
Before disconnecting or interrupting the DC voltage connec-
tions, e. g. the charging cable to the battery, the device needs
to be switched off at the mains. Disconnect the mains plug!
Batteries with short circuits may not be charged. There
is a risk of explosion caused by the generated detonat-
ing gas!
Prerequisites
The battery must have a nominal voltage of 12 V and a
minimum capacity of 80 Ah – 230 Ah in conjunction with a
Module A2 and a minimum capacity of 120 Ah – 360 Ah in
conjunction with a Module A2 and a connected Module A3.
Batteries below this minimum capacity will not be adequately
charged. Batteries with capacities that are too high will be
charged too slowly.
Charging process
The battery is charged automatically. After any mains power
failures, the main charging process is automatically restarted.
The main charging process is stopped when the battery
voltage has reached 14.4 V. At the end of the aftercharging
phase, the charging process switches to trickle charging at a
constant 13.8 V.
Parallel operation
In parallel mode, the consumer current should be smaller than
the maximum charging current of 23 A for a Module A2 and
of 36 A for a Module A2 and a connected Module A3. This is
the only way to ensure that the battery is being charged even
though consumers are being supplied.
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