Victron energy MultiPlus 12/800/35, Manual

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2. DESCRIPTION
2.1 General
Multi-functional
The MultiPlus gets its name from the multiple functions it can perform. It is a powerful true
sine wave inverter, a sophisticated battery charger that features adaptive charge technology
and a high-speed AC transfer switch in a single enclosure. Beside these primary functions,
however, the MultiPlus has several advanced features that provide a range of new
applications as outlined below.
Uninterrupted AC power
In the event of a grid failure, or shore or generator power being disconnected, the inverter
within the MultiPlus is automatically activated and takes over supply to the connected loads.
This happens so fast (less than 20 milliseconds) that computers and other electronic
equipment will continue to operate without disruption.
Parallel and 3-phase operation capability
Up to 6 inverters can operate in parallel to achieve higher power output.
Operation in 3-phase configuration is also possible.
PowerControl – Dealing with limited generator or shore side power
With a Multi Control Panel a maximum generator or shore current can be set. The MultiPlus
will then take account of other AC loads and use whatever is extra for charging, thus
preventing the generator or shore supply from being overloaded.
PowerAssist – Boosting the capacity of shore or generator power
This feature takes the principle of PowerControl to a further dimension allowing the MultiPlus
Compact to supplement the capacity of the alternative source. Where peak power is so often
required only for a limited period, it is possible to reduce the size of generator needed or
conversely enable more to be achieved from the typically limited shore connection. When the
load reduces, the spare power is used to recharge the battery.
Remark 1 : In case of parallel operation with a generator, power of the generator must not be
less than the capacity of the MultiPlus Compact (Example: a generator suitable for parallel
operation with a MultiPlus Compact 12/1600/70 must have a power of at least 1600VA).
Remark 2 : The output voltage of a generator can be greatly disrupted. In that case, the "AC
waveform check" should be turned off.
Programmable relay
The MultiPlus is equipped with a programmable relay that by default is set as an alarm relay.
The relay can be programmed for all kinds of other applications however, for example as a
starter relay for a generator.
2.2 Battery charger
Adaptive 4-stage charging characteristics: bulk – absorption – float – storage
The microprocessor-driven adaptive battery management system can be adjusted for various
types of batteries. The adaptive function automatically adapts the charging process to battery
use.