Victron energy MultiPlus Compact 12/2000/80-50 120V User manual

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

1. SAFETY INSTRUCTIONS
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.
Before applying power, ensure that the available power source matches the configuration
settings of the product as described in the manual.

EN Appendix
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.

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

EN Appendix
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.

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’.

EN Appendix
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”.

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