Victron energy MultiPlus Compact 12/2000/80-50 User manual

Manual
EN
Appendix
MultiPlus Compact
12 | 2000 | 80-50 120V
24 | 2000 | 50-50 120V

1. IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE
INSTRUCTIONS!
WARNING–These servicing instructions are for use by qualified
personnel only. To reduce the risk of electric shock, do not perform
any servicing other than that specified in the operating instructions
unless you are qualified to do so.
General
Please familiarize yourself with the safety features and instructions by first reading the
documentation supplied with this product before using the equipment. This product has been
designed and tested in accordance with international standards. The equipment must be
used exclusively for the purpose for which it was designed.
WARNING: ELECTRIC SHOCK HAZARD.
The product is used in conjunction with a permanent energy source (battery). Input and/or
output terminals may still be dangerously energized, even when the equipment is switched
off. Always switch off the AC supply and the battery before carrying out maintenance or
servicing the product.
The product has no internal user-serviceable components. Do not remove the front plate or
operate the product if any panels have been removed. All servicing must be undertaken by
qualified personnel.
Never use the product where there is a risk of gas or dust explosions. Consult the battery
manufacturer's information to ascertain that the product is intended for use in conjunction
with the battery. Always comply with the battery manufacturer's safety instructions.
WARNING: Do not lift heavy loads without assistance.
Installation
Read the installation instructions in the installation manual before installing the equipment.
This is a Safety Class I product (supplied with a protective grounding terminal).
Uninterruptible protective grounding must be provided at the AC input and/or output
terminals. Alternatively the grounding point located externally on the product may be
used. Whenever it is likely that the grounding protection has been damaged, the product
must be turned off and secured against unintended operation; please contact qualified
service staff.
Ensure that the DC and AC input cables are fused and fitted with circuit breakers. Never
replace a safety component with a different type. Consult the manual to determine the
correct component.

EN
Appendix
The installation shall be in accordance with the Canadian Electrical Code, Part 1.
The wiring methods shall be in accordance with the National Electrical Code,
ANSI/NFPA 70.
Before applying power, ensure that the available power source matches the
configuration settings of the product as described in the manual.

Ensure that the equipment is used under the correct ambient conditions. Never operate the
product in a wet or dusty environment. Ensure there is adequate free space for ventilation
around the product and check that the ventilation vents are not blocked.
Ensure that the required system voltage does not exceed the product's capacity.
Transport and Storage
Ensure that the mains power and battery leads have been disconnected before storing or
transporting the product.
No liability can be accepted for any transport damage if the equipment is shipped in non-
original packaging.
Store the product in a dry environment; the storage temperature must be between -20°C and
60°C.
Consult the battery manufacturer's manual in respect of transport, storage, charging,
recharging and disposal of the battery.

EN
Appendix
2. DESCRIPTION
2.1 General
Multi Compact -functional
The MultiPlus Compact 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
compact enclosure. Beside these primary functions, however, the MultiPlus
Compact 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 Compact 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.
PowerControl –Dealing with limited generator or shore side power
With a Phoenix Multi Control Panel a maximum generator or shore current can be set. The
Multi Compact 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.
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.
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.
Preventing damage due to excessive gassing: the BatterySafe mode

If, in order to quickly charge a battery, a high charge current in combination with a high
absorption voltage has been chosen, damage due to excessive gassing will be prevented by
automatically limiting the rate of voltage increase once the gassing voltage has been
reached.
Less maintenance and aging when the battery is not in use: the Storage mode
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 DC outputs for charging two batteries
The main DC terminal can supply the full output current. The second output, intended for
charging a starter battery, is limited to 4A and has a slightly lower output voltage.
Increasing service life of the battery: temperature compensation
The temperature sensor (supplied with the product) serves to reduce charging voltage when
battery temperature rises. This is particularly important for maintenance-free batteries, which
could otherwise dry out by overcharging.
More on batteries and charging
Our book ‘Energy Unlimited’ offers further information on batteries and battery charging and
is available free of charge on our website (see www.victronenergy.com -> Support &
Downloads’ -> General Technical Information). For more information on adaptive charging,
please also refer to the General Technical Information our website.
2.3 Self consumption –solar energy storage systems
When the Multi/Quattro is used in a configuration in which it will feed back energy to the grid
it is required to enable grid code compliance by selecting the grid code country setting with
the VEConfigure tool.
This way the Multi/Quattro can comply to the local rules.
Once set, a password will be required to disable grid code compliance or change grid code
related parameters.
If the local grid code is not supported by the Multi/Quattro an external certified interface
device should be used to connect the Multi/Quattro to the grid.
Special note for Australian customers: IEC62109.1 certification and CEC approval for off-grid
use does NOT imply approval for grid-interactive installations. Additional certification to IEC
62109.2 and AS 4777.2.2015 are required before grid-interactive systems can be
implemented. Please check Clean Energy Council website for current approvals.

EN
Appendix
3. OPERATION
3.1 On/Off/Charger Only Switch
When switched to "on", the product is fully functional. The inverter will come into
operation and the LED "inverter on" will light up.
An AC voltage connected to the "AC in" terminal will be switched through to the
"AC out" terminal, if within specifications. The inverter will switch off, the "mains
on" LED will light up and the charger commences charging. The "bulk",
"absorption" or "float" LEDs will light up, depending on the charger mode.
If the voltage at the "AC-in" terminal is not within specifacations, the inverter will
switch on.
When the switch is switched to "charger only", only the battery charger of the Phoenix Multi
will operate (if mains voltage is present). In this mode input voltage also is switched through
to the "AC out" terminal.
NOTE: When only the charger function is required, ensure that the switch is switched to
"charger only". This prevents the inverter from being switched on if the mains voltage is lost,
thus preventing your batteries from running flat.
3.2 Remote control
Remote control is possible with a 3-way switch or with a Multi Control panel.
The Multi Control panel has a simple rotary knob with which the maximum current of the AC
input can be set: see PowerControl and PowerAssist in Section 2.
For the appropriate DIP switch settings, see sect. 5.5.1.
3.3 Equalisation and forced absorption
3.3.1 Equalisation
Traction batteries may require regular equalisation charging. In the equalisation mode, the
MultiPlus will charge with increased voltage for one hour (1V above the absorption voltage
for a 12V battery, 2V for a 24V battery). The charging current is then limited to 1/4 of the set
value. The “bulk” and “absorption” LEDs flash intermittently.
Equalisation mode supplies a higher charging voltage than most DC consuming
devices can cope with. These devices must be disconnected before additional
charging takes place.
3.3.2 Forced absorption
Under certain circumstances, it can be desirable to charge the battery for a fixed time at
absorption voltage level. In Forced Absorption mode, the MultiPlus will charge at the normal
absorption voltage level during the set maximum absorption time. The “absorption” LED will
be ‘on’.

3.3.3 Activating equalisation or forced absorption
The MultiPlus can be put into both these states from the remote panel as well as with the
front panel switch, provided that all switches (front, remote and panel) are set to “on” and no
switches are set to “charger only”.
In order to put the MultiPlus in this state, the procedure below should be followed.
If the switch is not in the required position after following this procedure, it can be switched
over quickly once. This will not change the charging state.
NOTE: Switching from “on” to “charger only” and vice versa, as described below, must be done quickly.
The switch must be toggled such that the intermediate position is 'skipped', as it were. If the switch
remains in the “off” position even for a short time, the device may be turned off. In that case, the
procedure must be restarted at step 1. A certain degree of familiarisation is required when using the front
switch on the Compact in particular. When using the remote panel, this is less critical.
Procedure:
1. Check whether all switches (i.e. front switch, remote switch or remote panel switch if present)
are in the “on” position.
2. Activating equalisation or forced absorption is only meaningful if the normal charging cycle is
completed (charger is in 'Float').
3. To activate:
a. Switch rapidly from “on” to “charger only” and leave the switch in this position for ½ to 2
seconds.
b. Switch rapidly back from “charger only” to “on” and leave the switch in this position for ½ to
2 seconds.
c. Switch once more rapidly from “on” to “charger only” and leave the switch in this position.
4. On the MultiPlus the three LEDs “Inverter”, “Charger” and “Alarm” will now flash 5 times.
If a MultiControl panel is connected, on the panel the LEDs “bulk”, “absorption” and “float” will
also flash 5 times.
5. Subsequently, on the MultiPlus the LEDs “Bulk”, “Absorption” and “Float” will each light during
2 seconds.
If a MultiControl panel is connected, on the panel the LEDs “bulk”, “absorption” and “float” will
also each light during 2 seconds.
6. a. If the switch on the MultiPlus is set to “on” while the “Bulk” LED lights, the charger will switch
to equalisation.
Similarly, if the switch on the MultiControl panel is set to “on” while the “Bulk” LED lights, the
charger will switch to equalisation.
b. If the switch on the MultiPlus is set to “on” while the “Absorption” LED lights, the charger will
switch to forced absorption.
Similarly, if the switch on the MultiControl panel is set to “on” while the “Absorption” LED lights,
the charger will switch to forced absorption.
c. If the switch on the MultiPlus is set to “on” after the three LED sequence has finished, the
charger will switch to “Float”.
Similarly, if the switch on the MultiControl panel is set to “on” after the three LED sequence
has finished, the charger will switch to “float”.
d. If the switch is has not been moved, the MultiPlus will remain in ‘charger only’ mode and
switch to “Float”.

EN
Appendix
3.4 LED Indications
LED off
LED flashes
LED illuminated
Inverter
The inverter is switched on and supplies
power to the load. Battery operation.
inverter
on
charger
off
alarm
charger only
The inverter is switched on and supplies
power to the load.
Pre alarm: overload, or
battery voltage low, or
inverter temperature high
inverter
on
charger
off
alarm
charger only
The inverter is switched off.
Alarm: overload, or
battery voltage low, or
inverter temperature hig, or
DC ripple voltage was too high.
inverter
on
charger
off
alarm
charger only
Charger
The AC input voltage is switched through
and the charger operates in bulk or
absorption mode.
inverter
on
charger
off
alarm
charger only
The AC input voltage is switched through
and the charger is switched off.
The battery charger can not reach battery
end voltage (bulk protection mode).
inverter
on
charger
off
alarm
charger only

The AC input voltage is switched
through and the charger operates in
bulk or absorption mode.
inverter
on
charger
off
alarm
charger only
The AC input voltage is switched
through and the charger operates in
float mode.
inverter
on
charger
off
alarm
charger only
Remote Control panel (optional)
Power Control and PowerAssist indication
inverter on
mains on
overload
bulk
low battery
absorption
temperature
float
on
charger
only
off
Note: When the LED’s “overload” and “low battery” are on simultaneously, the Multi(Plus) or
Inverter Compact has switched off due to excessive DC ripple voltage.

EN
Appendix
4. INSTALLATION
This product should be installed by a qualified electrician.
4.2 Location
The product must be installed in a dry and well-ventilated area, as close as possible to the
batteries. There should be a clear space of at least 10cm around the appliance for cooling.
The product is suitable for wall mounting. For mounting see appendix A.
The appliance can be mounted horizontally as well as vertically; vertical mounting is
preferable. The vertical position offers optimum cooling.
Try and keep the distance between the product and the battery to a minimum in order to
minimize cable voltage losses.
Excessively high ambient temperature will result in the following:
Reduced service life.
Reduced charging current.
Reduced peak capacity, or shutdown of the inverter.
Never mount the appliance directly above the batteries.
The interior of the product must remain accessible after installation.
For safety purposes, this product should be installed in a heat-
resistant environment if it is used with equipment where a
substantial amount of power is to be converted. You should prevent
the presence of e.g. chemicals, synthetic components, curtains or
other textiles, etc., in the immediate vicinity.
CAUTION- Do not expose charger to rain or snow

Each system requires a method of disconnecting the AC and DC
circuits. If the overcurrent protection device is a circuit breaker, it
will also serve as the disconnect. If fuses are used, separate
disconnect switches will be needed between the source and the
fuses.
To reduce the risk of fire, do not connect to an ac load center (circuit
breaker panel) having multiwire branch circuits connected.
CAUTION –To reduce risk of injury, charge only Lead Acid or
LIFEPO4 type rechargeable batteries. Other types of batteries may
burst causing personal injury and damage.
Use of an attachment not recommended or sold by the marine unit
manufacturer may result in a risk of fire, electric shock, or injury to
persons
Do not disassemble marine unit; take it to a qualified serviceman
when service or repair is required. Incorrect reassembly may result
in a risk of electric shock or fire.
To reduce risk of electric shock, unplug marine unit from outlet
before attempting any maintenance or cleaning. Turning off
controls will not reduce this risk.
WARNING –RISK OF EXPLOSIVE GASES) WORKING IN
VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS.
BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL
BATTERY OPERATION. FOR THIS REASON, IT IS OF UTMOST
IMPORTANCE THAT EACH TIME BEFORE SERVICING THE
UNIT IN THE VICINITY OF THEBATTERY, YOU READ THIS
MANUAL AND FOLLOW THE INSTRUCTIONS EXACTLY.
To reduce risk of battery explosion, follow these instructions and
those published by battery manufacturer and manufacturer of any
unit you intend to use in vicinity of battery. Review cautionary
marking on these products and on engine.

EN
Appendix
PERSONAL PRECAUTIONS
i. Someone should be within range of your voice or close enough
to come to your aid when you work near a lead-acid battery.
ii. Have plenty of fresh water and soap nearby in case battery
acid contacts skin, clothing, or eyes.
iii. Wear complete eye protection and clothing protection. Avoid
touching eyes while working near battery.
iv. If battery acid contacts skin or clothing, wash immediately with
soap and water. If acid enters eye, immediately flood eye with
running cold water for at least 10 min and get medical attention
immediately.
v. NEVER smoke or allow a spark or flame in vicinity of battery or
engine.
vi. Be extra cautious to reduce risk of dropping a metal tool onto
battery. It might spark or short-circuit battery or other electrical
part that may cause explosion.
vii. Remove personal metal items such as rings, bracelets,
necklaces, and watches when working with a lead-acid battery.
A lead-acid battery can produce a short-circuit current high
enough to weld a ring or the like to metal, causing a severe
burn.
viii. NEVER charge a frozen battery.
ix. If necessary to remove battery from vessel, always remove
grounded terminal from battery first. Make sure all accessories
in the vessels are off, so as not to cause an arc.
x. Be sure area around battery is well ventilated.
xi. Clean battery terminals. Be careful to keep corrosion from
coming in contact with eyes.
xii. Study all battery manufacturer’s specific precautions such as
removing or not removing cell caps while charging and
recommended rates of charge.
xiii. Add distilled water in each cell until battery acid reaches level
specified by battery manufacturer. This helps purge excessive
gas from cells. Do not overfill. For a battery without cell caps,
carefully follow manufacturer’s recharging instructions.
MARINE UNIT LOCATION

•Locate marine unit away from battery in a separate, well
ventilated compartment.
•Never place marine unit directly above battery; gases from
battery will corrode and damage marine unit.
•Never allow battery acid to drip on marine unit when
reading gravity or filling battery.
•Do not operate marine unit in a closed-in area or restrict
ventilation in any way.
DC CONNECTION PRECAUTIONS
Connect and disconnect DC output connections only after setting
any marine unit switches to off position and removing AC cord from
electric outlet or opening AC disconnect.
EXTERNAL CONNECTIONS TO CHARGER SHALL COMPLY
WITH THE UNITED STATES COAST GUARD ELECTRICAL
REGULATIONS (33CFR183, SUB PART I).
GROUNDING INSTRUCTIONS –This marine unit should be
connected to a grounded, metal, permanent wiring system; or an
equipment-grounding conductor should be run with circuit
conductors and connected to equipment-grounding terminal or
lead on unit.
Connections to unit should comply with all local codes and
ordinances.
4.2 Connection of Battery cables
In order to fully utilize the full capacity of the product, batteries with sufficient capacity and
battery cables with sufficient cross section should be used. The DC cables must be copper
and rated 90ºC (194ºF) See table.
12/2000/80-50
24/2000/50-50
Recommended battery capacity
(Ah)
350–1000
200–500
Recommended DC fuse
300A
200A
Recommended cross section (mm2)
per + and - connection terminal
0 –5m
70mm2
35mm2

EN
Appendix
Remark: Internal resistance is the important factor when working with low
capacity batteries. Please consult your supplier or the relevant sections of our
book “electricity on board”, downloadable from our website.
Procedure
Proceed as follows to connect the battery cables:
Use an insulated box spanner in order to avoid shorting the battery.
Avoid shorting the battery cables.
Connect the battery cables: the + (red) on the left and the - (black) on the right, to the battery
see appendix A.
Reverse polarity connection (+ to –and –to +) will cause damage to the product. (Safety
fuse inside the Multi Compact can be damaged)
Secure the nuts tightly in order to reduce the contact resistance as much as possible.

4.3 Connection of the AC cabling
This is a Safety Class I product (supplied with a protective grounding terminal).
Uninterruptible protective grounding must be provided at the AC input
and/or output terminals and/or chassis grounding point located externally
on the product.
The MultiPlus is provided with a ground relay (relay H, see appendix B) that
automatically connects the Neutral output to the chassis if no external AC
supply is available. If an external AC supply is provided, the ground relay H will
open before the input safety relay closes. This ensures the correct operation of
an earth leakage circuit breaker that is connected to the output.
─In a fixed installation, an uninterruptable grounding can be secured by
means of the grounding wire of the AC input. Otherwise the casing must
be grounded.
─In a mobile installation (for example, with a shore current plug), interrupting
the shore connection will simultaneously disconnect the grounding
connection. In that case, the casing must be connected to the chassis (of
the vehicle) or to the hull or grounding plate (of the boat).
In case of a boat, direct connection to the shore ground is not recommended
because of potential galvanic corrosion. The solution to this is using an isolation
transformer.
The mains -input & output terminal connector can be found on the bottom of the Multi
Compact, see appendix A.
•AC-in
The AC input must be protected by a fuse or magnetic circuit breaker rated at 50A
or less, and cable cross-section must be sized accordingly. If the input AC supply
is rated at a lower value, the fuse or magnetic circuit breaker should be downsized
accordingly.
•AC-out
With its PowerAssist feature the Multi can add up to 2kVA (that is 2000 / 120 = 17A) to
the output during periods of peak power requirement. Together with a maximum input
current of 50A this means that the output can supply up to 50 + 17 = 67A.
An earth leakage circuit breaker and a fuse or circuit breaker rated to support the
expected load must be included in series with the output, and cable cross-section
must be sized accordingly. Victron Energy recommends to use the Blue Sea
systems GFCI circuit breakersPN. 309X or 310X

EN
Appendix
4.4 Optional Connections
A number of optional connections are possible:
Undo the four screws at the front of the enclosure and remove the front panel.
4.4.1 Second Battery
The MultiPlus Compact has a connection (+) for charging a starter battery. For
connection see appendix A.
4.4.2 Temperature Sensor
The temperature sensor supplied with the product may be used for temperature-
compensated charging. The sensor is insulated and must be mounted on the batteries minus
pole. Default output voltages for Float and Absorption are at 25°C. In adjust mode
temperature compensation is disabled.
10.0
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
15.0
0 5 10 15 20 25 30 35 40 45 50 55 60
Battery temperature
Volts
20
21
22
23
24
25
26
27
28
29
30
Volts
4.4.3 Remote Control
The product can be remotely controlled in two ways:
- With an external 3-way switch
- With a Multi Control Panel
Please see section 5.5.1. for appropriate DIP switch settings.
4.4.4. Programmable 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 to start a generator (VEConfigure software needed).
Near the connection terminals an LED illuminates when the relay is activated (refer to S, see
appendix A).

4.4.5 Parallel Connection
The MultiPlus can be connected in parallel with several identical devices. To this end, a
connection is established between the devices by means of standard RJ45 UTP cables. The
system (one or more Multis plus optional control panel) will require subsequent configuration
(see Section 5).
In the event of connecting MultiPlus units in parallel, the following requirements must be met:
•A maximum of six units connected in parallel.
•Only identical devices may be connected in parallel.
•The DC connection cables to the devices must be of equal length and cross-section.
•If a positive and a negative DC distribution point is used, the cross-section of the connection
between the batteries and the DC distribution point must at least equal the sum of the required
cross-sections of the connections between the distribution point and the MultiPlus units.
•Place the MultiPlus units close to each other, but allow at least 10 cm for ventilation purposes under,
above and beside the units.
•UTP cables must be connected directly from one unit to the other (and to the remote panel).
Connection/splitter boxes are not permitted.
•A battery-temperature sensor need only be connected to one unit in the system. If the temperature
of several batteries is to be measured, you can also connect the sensors of other MultiPlus units in
the system (with a maximum of one sensor per MultiPlus). Temperature compensation during
battery charging responds to the sensor indicating the highest temperature.
•If more than three units are connected in parallel in one system, a dongle is required (see
Section 5).
•Only one remote control means (panel or switch) can be connected to the system.
4.4.6 Three-phase operation
The MultiPlus can also be used in 3-phase wye (Y) configuration. To this end, a connection
between the devices is made by means of standard RJ45 UTP cables (the same as for
parallel operation). The system (Multis plus an optional control panel) will require
subsequently configuration (see Section 5).
Pre-requisites: see Section 4.4.6.
Note: the MultiPlus is not suitable for 3-phase delta (Δ) configuration.