Victron energy Phoenix MultiPlus 24/3000/70 User manual

MANUAL
Phoenix MultiPlus
Con VE.Bus
12/3000/120
24/3000/70
48/3000/35
Remark:
DIP switch functionality has changed.
Parallel and 3-phase systems can be now configured with DIP
switches.
EN NL F D E Appendix

Copyrights 2007 Victron Energy B.V.
All Rights Reserved
This publication or parts thereof may not be reproduced in any form, by any method,
for any purpose.
For conditions of use and permission to use this manual for publication in other than
the English language, contact Victron Energy B.V.
VICTRON ENERGY B.V. MAKES NO WARRANTY, EITHER EXPRESSED OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, REGARDING
THESE VICTRON ENERGY PRODUCTS AND MAKES SUCH VICTRON ENERGY
PRODUCTS AVAILABLE SOLELY ON AN “AS IS” BASIS.
IN NO EVENT SHALL VICTRON ENERGY B.V. BE LIABLE TO ANYONE FOR
SPECIAL, COLLATERAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IN
CONNECTION WITH OR ARISING OUT OF PURCHASE OR USE OF THESE
VICTRON ENERGY PRODUCTS. THE SOLE AND EXCLUSIVE LIABILITY TO
VICTRON ENERGY B.V., REGARDLESS OF THE FORM OF ACTION, SHALL NOT
EXCEED THE PURCHASE PRICE OF THE VICTRON ENERGY PRODUCTS
DESCRIBED HERE IN.
Victron Energy B.V. reserves the right to revise and improve its products as it sees fit.
This publication describes the state of this product at the time of its publication and
may not reflect the product at all times in the future

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EN NL FR DE ES Appendix
1. SAFETY INSTRUCTIONS
In general
Please read the documentation supplied with this product first, so that you are familiar
with the safety signs en directions before using the product.
This product is designed and tested in accordance with international standards. The
equipment should be used for the designated application only.
WARNING: DANGER OF ELECTRICAL SHOCK
The product is used in combination with a permanent energy source (battery). Even if
the equipment is switched off, a dangerous electrical voltage can occur at the input
and/or output terminals. Always switch the AC power off and disconnect the battery
before performing maintenance.
The product contains no internal user-serviceable parts. Do not remove the front panel
and do not put the product into operation unless all panels are fitted. All maintenance
should be performed by qualified personnel.
Never use the product at sites where gas or dust explosions could occur. Refer to the
specifications provided by the manufacturer of the battery to ensure that the battery is
suitable for use with this product. The battery manufacturer's safety instructions
should always be observed.
WARNING: do not lift heavy objects unassisted.
Installation
Read the installation instructions before commencing installation activities.
This product is a safety class I device (supplied with a ground terminal for safety
purposes). Its AC input and/or output terminals must be provided with
uninterruptible grounding for safety purposes. An additional grounding point is
located on the outside of the product. If it can be assumed that the grounding
protection is damaged, the product should be taken out of operation and prevented
from accidentally being put into operation again; contact qualified maintenance
personnel.
Ensure that the connection cables are provided with fuses and circuit breakers. Never
replace a protective device by a component of a different type. Refer to the manual for
the correct part.
Check before switching the device on whether the available voltage source conforms
to the configuration settings of the product as described in the manual.
Ensure that the equipment is used under the correct operating conditions. Never
operate it in a wet or dusty environment.
Ensure that there is always sufficient free space around the product for ventilation,
and that ventilation openings are not blocked.

2
Install the product in a heatproof environment. Ensure therefore that there are no
chemicals, plastic parts, curtains or other textiles, etc. in the immediate vicinity of the
equipment.
Transport and storage
On storage or transport of the product, ensure that the mains supply and battery leads
are disconnected.
No liability can be accepted for damage in transit if the equipment is not transported in
its original packaging.
Store the product in a dry environment; the storage temperature should range from –
20°C to 60°C.
Refer to the battery manufacturer's manual for information on transport, storage,
charging, recharging and disposal of the battery.

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EN NL FR DE ES Appendix
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 or30A, depending on model.
Virtually unlimited power thanks to parallel operation
Up to 6 Multi’s can operate in parallel. Six units 24/3000/70, for example, will provide
15kW / 18kVA 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 45kW / 54kVA inverter power and
more than 1000A 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’:
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.
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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Autonomous operation when the grid fails
Houses or buildings with solar panels or a combined micro-scale heating and power
plant or other sustainable energy sources have a potential autonomous energy supply
which can be used for powering essential equipment (central heating pumps,
refrigerators, deep freeze units, Internet connections, etc.) during a power failure. A
problem is however that grid connected sustainable energy sources drop out as soon
as the grid fails. With a MultiPlus and batteries, this problem can be solved in a simple
manner: the MultiPlus can replace the grid during a power failure. When the
sustainable energy sources produce more power than needed, the MultiPlus will use
the surplus to charge the batteries; in the event of a shortfall, the MultiPlus will supply
additional power from the battery.
Multi-functional relay
The MultiPlus is equipped with a multi-functional relay that by default is programmed
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.
Programmable with DIP switches, VE.Net panel or personal computer
The Phoenix Inverter is supplied ready for use. Three features are available for
changing certain settings if desired:
─The most important settings (including parallel operation of up to three devices
and 3-phase operation) can be changed in a very simple manner, using DIP
switches.
─All settings, with exception of the multi-functional relay, can be changed with a
VE.Net panel.
─All settings can be changed with a PC and free of charge software,
downloadable from our website www.victronenergy.com
2.2 Battery charger
Adaptive 4-stage charge characteristic: bulk – absorption – float – storage
The MultiPlus features a microprocessor controlled ‘adaptive’ battery management
system that can be preset to suit different types of batteries. The ‘adaptive’ feature will
automatically optimise the process relative to the way the battery is being used.
The right amount of charge: variable absorption time
When only shallow discharges occur (a yacht connected to shore power for example)
the absorption time is kept short in order to prevent overcharging of the battery. After a
deep discharge the absorption time is automatically increased to make sure that the
battery is completely recharged.

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EN NL FR DE ES Appendix
Preventing damage due to excessive gassing: the BatterySafe mode (see fig. 2
below)
If, in order to quickly charge a battery, a high charge current in combination with a high
absorption voltage has been chosen, the MultiPlus will prevent damage due to
excessive gassing by automatically limiting the rate of voltage increase once the
gassing voltage has been reached (see the charge curve between 14,4V and 15,0V in
fig. 2 below).
Less maintenance and aging when the battery is not in use: the Storage mode
(see fig. 1 & 2 below)
The storage mode kicks in whenever the battery has not been subjected to discharge
during 24 hours. In the storage mode float voltage is reduced to 2,2V/cell (13,2V for
12V battery) to minimise gassing and corrosion of the positive plates. Once a week
the voltage is raised back to the absorption level to ‘equalize’ the battery. This feature
prevents stratification of the electrolyte and sulphation, a major cause of early battery
failure.
Two outputs to charge 2 battery banks
The MultiPlus features 2 outputs, of which 1 can carry the full output current. The
second output, limited to approximately 4 A and with a slightly lower output voltage, is
intended to top up a starter battery.
To increase battery life: temperature compensation
Every MultiPlus comes with a battery temperature sensor. When connected, charge
voltage will automatically decrease with increasing battery temperature. This feature is
especially recommended for sealed batteries and/or when important fluctuations of
battery temperature are expected.
Battery voltage sense
In order to compensate for voltage loss due to cable resistance the MultiPlus is
provided with a voltage sense facility so that the battery always receives the correct
charge voltage.
Learn more about batteries and battery charging
To learn more about batteries and charging batteries, please refer to our book ‘Energy
Unlimited’ (available free of charge from Victron Energy and downloadable from
www.victronenergy.com). For more information about adaptive charging please look
under Technical Information on our website.