Manual Victron MultiPlus 12 500 20-16 (page 4 of 146) (English, German, Dutch, French, Italian, Spanish)

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2. DESCRIPTION

2.1 General

Multifunctional

The Multi 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 Multi 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 Multi 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 (800VA and 1200VA models only)

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 Multi 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 (800VA and 1200VA

models only)

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.

Programmable relay

The Multi 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.

The right amount of charge: variable absorption time

In the event of slight battery discharge, absorption is kept short to prevent overcharging and

excessive gas formation. After deep discharging, the absorption time is automatically

extended in order to fully charge the battery.

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Victron MultiPlus 12 500 20-16 Manual

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