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Victron MultiPlus 48 5000 70-100 Manual

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NOTE:
This manual is intended for products with firmware xxxx400 or higher (with x any number)
The firmware number can be found on the microprocessor, after removing the front panel.
It is possible to update older units, as long as that same 7 digit firmware number starts with either 26 or 27. When this number starts
with 19 or 20 you have an old microprocessor and it is not possible to update to 400 or higher.
2. DESCRIPTION
2.1 In general
The basis of the MultiPlus is an extremely powerful sine inverter, battery charger and automatic switch in a compact casing.
The MultiPlus features the following additional, often unique characteristics:
Automatic and uninterruptible switching
In the event of a supply failure or when the generating set is switched off, the MultiPlus will switch over to inverter operation and take
over the supply of the connected devices. This is done so quickly that operation of computers and other electronic devices is not
disturbed (Uninterruptible Power Supply or UPS functionality). This makes the MultiPlus highly suitable as an emergency power system
in industrial and telecommunication applications. The maximum alternating current that can be switched is 16A or 50A, depending on
model.
Auxiliary AC output
Besides the usual uninterruptable output, an auxiliary output is available that disconnects its load in the event of battery operation.
Example: an electric boiler that is allowed to operate only if the genset is running or shore power is available.
Virtually unlimited power thanks to parallel operation
Up to 6 MultiPlus units can operate in parallel. Six units 48/5000/70, for example, will provide 24kW / 30kVA output power and 420
Amps charging capacity.
Three phase capability
Three units can be configured for three-phase output. But that’s not all: up to 6 sets of three units can be parallel connected to provide
72kW / 90kVA inverter power and more than 1200A charging capacity.
PowerControl – maximum use of limited shore current
The MultiPlus can supply a huge charging current. This implies heavy loading of the shore connection or generator set. Therefore a
maximum current can be set. The MultiPlus then takes other power users into account, and only uses 'surplus' current for charging
purposes.
PowerAssist – Extended use of your generator and shore current: the MultiPlus “co-supply” feature
This feature takes the principle of PowerControl to a further dimension allowing the MultiPlus to supplement the capacity of the
alternative source. Where peak power is so often required only for a limited period, the MultiPlus will make sure that insufficient shore or
generator power is immediately compensated for by power from the battery. When the load reduces, the spare power is used to
recharge the battery.
This unique feature offers a definitive solution for the ‘shore current problem’:high power electric tools, dish washers,
washing machines, electric cooking etc. can all run on 16A shore current, or even less. In addition, a smaller generator can be
installed.
Three programmable relays
The relays can be programmed for all kinds of applications, for example as a starter relay for a generating set.
Two programmable analog/digital input/output ports
These ports can be used for several purposes. One application is communication with the BMS of a lithium-ion battery.
Frequency shift
When solar inverters are connected to the output of a Multi or Quattro, the excess solar energy is used to recharge the batteries. Once
the absorption voltage is reached, the Multi or Quattro will shut down the solar inverter by shifting the output frequency 1Hz (from 50Hz
to 51Hz for example). Once battery voltage has dropped slightly, the frequency returns to normal and the solar inverters will restart.
Built-in Battery Monitor (optional)
The ideal solution when Multi’s or Quattro’s are part of a hybrid system (diesel generator, inverter/chargers, storage battery, and
alternative energy). The built-in battery monitor can be set to start and stop the generator:
- Start at a preset % discharge level, and/or
- start (with a preset delay) at a preset battery voltage, and/or
- start (with a preset delay) at a preset load level.
- Stop at a preset battery voltage, or
- stop (with a preset delay) after the bulk charge phase has been completed, and/or
- stop (with a preset delay) at a preset load level.
Solar energy
The MultiPlus is extremely suitable for solar energy applications. It can be used in autonomous systems as well as grid connected
systems.
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