Manual - MultiPlus 3k 120V Ve.Bus enabled
EN
Manual
Appendix
MultiPlus
12 | 3000 | 120 – 50 | 120V
24 | 3000 | 70 – 50 | 120V
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
EN
1. SAFETY INSTRUCTIONS
In general
Appendix
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.
1
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.
2
EN
2. DESCRIPTION
2.1 In general
Appendix
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.
Virtually unlimited power thanks to parallel operation
Up to 6 MultiPlus units can operate in parallel. Six units 24/3000/70, for example, will
provide 15kW / 18kVA output power and 420 Amps charging capacity.
Three phase and split phase capability
Three units can be configured for three-phase or split 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.
Split phase options
Two units can be stacked to provide 120-0-120V, and additional units can be
paralleled up to a total of 6 units per phase, to supply up to 30kW / 36kVA of split
phase power.
Alternatively, a split phase AC source can be obtained by connecting our
autotransformer (see data sheet on www.victronenergy.com) to an ‘European’ inverter
programmed to supply 240V / 60Hz.
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’:
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.
3
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.
Programmable with DIP switches, VE.Net panel or personal computer
The MultiPlus 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.
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, the MultiPlus will prevent damage due to
excessive gassing 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.
4
EN
Two outputs to charge 2 battery banks
The MultiPlus features two outputs, of which one 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.
Appendix
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.
5
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 specifications, the inverter will switch
on.
When the switch is switched to "charger only", only the battery charger of the
MultiPlus 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 Phoenix Multi Control panel.
The Phoenix 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.
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 lights.
6
EN
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.
NOTE: Switching from “on” to “charger only” and back, 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. 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 (and, if connected, on the MultiControl panel) the three LEDs “Bulk”,
“Absorption” and “Float” will now flash 5 times.
5. Subsequently, the LEDs “Bulk”, “Absorption” and “Float” will each light during 2 seconds.
a. If the switch is set to “on” while the “Bulk” LED lights, the charger will switch to equalisation.
b. If the switch is set to “on” while the “Absorption” LED lights, the charger will switch to forced
absorption.
c. If the switch 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”.
7
Appendix
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.
3.4 LED Indications
LED off
LED flashes
LED illuminated
Inverter
Charger
mains on
inverter
on
Bulk
inverter on
overload
off
Absorption
Float
low battery
charger
only
Charger
mains on
temperature
inverter
on
Bulk
inverter on
overload
off
absorption
Float
low battery
charger
only
Charger
mains on
temperature
on
inverter on
overload
off
absorption
8
The nominal output of the
inverter is exceeded. The
“overload” LED flashes
inverter
Bulk
Float
The inverter is on and supplies
power to the load.
low battery
charger
only
temperature
The inverter is switched off due
to overload or short circuit.
mains on
inverter
on
inverter on
overload
off
absorption
Float
temperature
inverter
on
Bulk
inverter on
overload
off
absorption
Float
temperature
inverter
on
Bulk
inverter on
overload
off
absorption
Float
temperature
inverter
on
Bulk
inverter on
overload
off
absorption
Float
The internal temperature is
reaching a critical level.
low battery
charger
only
Charger
mains on
The battery is almost fully
exhausted.
low battery
charger
only
Charger
mains on
The inverter has switched off
due to low battery voltage.
low battery
charger
only
Charger
mains on
Appendix
Bulk
EN
Charger
low battery
charger
only
The inverter has switched off
due to the electronics
temperature being too high.
temperature
9
Charger
mains on
inverter
on
Bulk
inverter on
overload
off
absorption
Float
low battery
charger
only
Charger
mains on
temperature
inverter
on
Bulk
inverter on
overload
off
absorption
Float
-If the LEDs are flashing
alternately, the battery is nearly
exhausted and the nominal
output is exceeded.
-If "overload" and "low battery"
flash simultaneously, the ripple
voltage on the battery
terminals is too high.
low battery
charger
only
The inverter switched off due
to excess ripple voltage on the
battery terminals.
temperature
Battery Charger
Charger
mains on
inverter
on
Bulk
inverter on
overload
off
absorption
Float
low battery
charger
only
Charger
mains on
temperature
inverter
on
Bulk
inverter on
overload
off
absorption
Float
10
The AC input voltage is
switched through and the
charger operates in bulk mode.
low battery
charger
only
temperature
The mains voltage is switched
through and the charger is on.
The set absorption voltage,
however, has not yet been
reached. (BatterySafe mode)
mains on
inverter
on
inverter on
overload
off
absorption
low battery
charger
only
Charger
mains on
temperature
inverter
on
Bulk
inverter on
overload
off
absorption
Float
low battery
charger
only
Charger
mains on
temperature
on
inverter on
overload
off
Float
The mains voltage is switched
through and the charger
operates in float mode.
inverter
Bulk
absorption
The mains voltage is switched
through and the charger
operates in absorption mode.
charger
only
The mains voltage is switched
through and the charger
operates in equalize mode.
low battery
temperature
11
Appendix
Bulk
Float
EN
Charger
Special Indications
PowerControl
charger
mains on
inverter
on
bulk
inverter on
overload
off
absorption
float
low battery
charger
only
The AC input is switched
through. The AC output
current is equal to the preset
maximum input current. The
charge current is reduced to 0.
temperature
Power Assist
charger
mains on
inverter
on
bulk
inverter on
overload
off
absorption
float
12
low battery
charger
only
temperature
The AC input is switched
through but the load requires
more current than the preset
maximum input current. The
inverter is switched on to
supply the required additional
current.
EN
4. Installation
This product may only be installed by a qualified electrical engineer.
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 10 cm (4 inch) around the
appliance for cooling.
Excessively high ambient temperature will result in the following:
Reduced service life.
Reduced charging current.
Reduced peak capacity, or shutdown of the inverter.
Never position the appliance directly above the batteries.
The MultiPlus is suitable for wall mounting. For mounting purposes, a hook and two
holes are provided at the back of the casing (see appendix G). The device can be
fitted either horizontally or vertically. For optimal cooling, vertical fitting is preferred.
The interior of the product must remain accessible after installation.
Try and keep the distance between the product and the battery to a minimum in order
to minimize cable voltage losses.
For safety purposes, this product should be installed in a heat-resistant
environment. You should prevent the presence of e.g. chemicals, synthetic
components, curtains or other textiles, etc., in the immediate vicinity.
13
Appendix
4.2 Location
4.2 Connection of battery cables
In order to utilize the full capacity of the product, batteries with sufficient capacity and
battery cables with sufficient cross section should be used. See table.
Recommended battery capacity (Ah)
Recommended DC fuse
12/3000/120
400–1200
400A
24/3000/70
200–700
300A
48/3000/35
100–400
125A
2x 50 mm2
2x 70 mm2
50 mm2
2x 50 mm2
35 mm2
2x 35 mm2
Recommended cross section (mm2)
per + and - connection terminal
0–5m
5 – 10 m
* ‘2x’ means two positive and two negative cables.
Remark: Internal resistance is the important factor when working with low capacity
batteries. Please consult your supplier or the relevant sections of our book “Energy
Unlimited”, 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.
- Undo the four screws at the front of the enclosure and remove the front panel.
- Connect the battery cables: see Appendix A.
- Tighten the nuts well for minimal contact resistance.
14
4.3 Connection of the AC cabling
EN
Appendix
The MultiPlus is a safety class I product (supplied with a ground
terminal for safety purposes). Its AC input and/or output terminals
and/or grounding point on the outside of the product must be
provided with an uninterruptible grounding point for safety
purposes.
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 terminal blocks can be found on the printed circuit board, see appendix A. The
shore or mains cable must be connected to the MultiPlus with the aid of a three-wire
cable.
- The AC input cable can be connected to the terminal block “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 down
sized accordingly.
- The AC output cable can be connected directly to the terminal block "AC-out".
With its PowerAssist feature the MultiPlus can add up to 5kVA (that is
3000 / 120 = 25A) 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 + 25 = 75A.
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 crosssection must be sized accordingly. The maximum rating of the fuse or circuit
breaker is 75A.
15
4.4 Optional Connections
A number of optional connections are possible(see appendix A)
4.4.1 Second Battery
The MultiPlus has a connection for charging a starter battery.
4.4.2 Voltage Sense
Two sense wires may be connected to compensate possible battery cable losses
during charging. Use wires of at least 0.75mm2.
4.4.3 Temperature Sensor
The temperature sensor supplied with the product may be used for temperaturecompensated charging. The sensor is isolated and must be mounted on the battery’s
minus pole.
4.4.4 Remote Control
The product can be remotely controlled in two ways.
With an external switch. Operates only if the switch on the MultiPlus is set to “on”.
With a Multi Control panel (connected to one of the two RJ48 sockets). Operates only
if the switch on the MultiPlus is set to “on”.
Only one remote control can be connected, i.e. either a switch or a remote control
panel.
4.4.5. 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).
16
EN
4.4.6 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 MultiPlus units 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:
4.4.7 Three-phase operation
The MultiPlus can also be used in 3-phase 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 (MultiPlus units plus an optional control panel) will
require subsequently configuration (see Section 5).
Pre-requisites: see Section 4.4.6.
4.4.8 Two phase (split phase) configuration (see appendix C)
MultiPlus units can also be used in split phase 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 (MultiPlus units plus an optional control
panel) will require subsequent configuration (see Section 5).
Pre-requisites: see Section 4.4.6.
17
Appendix
- 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 / 4 inch 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.
- Voltage sensing must be connected to the master (see Section 5.5.1.4).
- If more than three units are connected in parallel in one system, a dongle is required (see
Section 5).
- Only one remote control (panel or switch) can be connected to the system.
5. Configuration
Settings may only be changed by a qualified electrical engineer.
Read the instructions thoroughly before implementing changes.
During setting of the charger, the AC input must be removed.
5.1 Standard settings: ready for use
On delivery, the MultiPlus is set to standard factory values. In general, these settings
are suitable for single-unit operation.
Warning: Possibly, the standard battery charging voltage is not suitable for
your batteries! Refer to the manufacturer's documentation, or to
your battery supplier!
Standard MultiPlus factory settings
Inverter frequency
Input frequency range
Input voltage range
Inverter voltage
Stand-alone / parallel / 3-phase
AES (Automatic Economy Switch)
Ground relay
Charger on/ off
Battery charge curve
Charging current
Battery type
Automatic equalisation charging
Absorption voltage
Absorption time
Float voltage
Storage voltage
Repeated absorption time
Absorption repeat interval
Bulk protection
AC input current limit
UPS feature
Dynamic current limiter
WeakAC
BoostFactor
Multi-functional relay
VirtualSwitch
PowerAssist
18
60 Hz
45 - 65 Hz
94 - 143 VAC
120 VAC
stand-alone
off
on
on
Four-stage adaptive with BatterySafe mode
75% of the maximum charging current
Victron Gel Deep Discharge (also suitable for Victron AGM
deep discharge
off
14.4 / 28.8 / 57.6 V
up to 8 hours (depending on bulk time)
13.8 / 27.6 / 55.2 V
13.2 / 26.4 / 52.8V (not adjustable)
1 hour
7 days
on
50A (= adjustable current limit for PowerControl and
PowerAssist functions)
on
off
off
2
alarm function
controls the multi-functional relay
on
5.2 Explanation of settings
EN
Appendix
Settings that are not self-explanatory are described briefly below. For further
information, please refer to the help files in the software configuration programs
(see Section 5.3).
Inverter frequency
Output frequency if no AC is present at the input.
Adjustability: 50Hz; 60Hz
Input frequency range
Input frequency range accepted by the MultiPlus. The MultiPlus synchronises within
this range with the AC input frequency. The output frequency is then equal to the input
frequency.
Adjustability: 45 – 65 Hz; 45 – 55 Hz; 55 – 65 Hz
Input voltage range
Voltage range accepted by the MultiPlus. The MultiPlus synchronises within this
range with the AC input voltage. The output voltage is then equal to the input voltage.
Adjustability:
Lower limit: 94 - 120V
Upper limit: 120 - 143V
Inverter voltage
Output voltage of the MultiPlus in battery operation.
Adjustability: 95 – 128V
Stand-alone / parallel operation / 2-3 phase setting
Using several devices, it is possible to:
- increase total inverter power (several devices in parallel)
- create a split-phase system
- create a 3-phase system.
The standard product settings are for standalone operation. For parallel, three phase
or split phase operation see section 4.6.6 and 4.6.7.
AES (Automatic Economy Switch)
If this setting is turned ‘on’, the power consumption in no-load operation and with low
loads is decreased by approx. 20%, by slightly 'narrowing' the sinusoidal voltage.
Adjustable with DIP switches. Applicable in stand-alone configuration only.
19
Search Mode
Instead of the AES mode, the search mode can also be chosen (with help of
VEConfigure only).
If search mode is ‘on’, the power consumption in no-load operation is decreased by
approx. 70%. In this mode the MultiPlus, when operating in inverter mode, is switched
off in case of no load or very low load, and switches on every two seconds for a short
period. If the output current exceeds a set level, the inverter will continue to operate. If
not, the inverter will shut down again.
The Search Mode “shut down” and “remain on” load levels can be set with
VEConfigure.
The factory settings are:
Shut down: 40 Watt (linear load)
Turn on: 100 Watt (linear load)
Not adjustable with DIP switches. Applicable in stand-alone configuration only.
Ground relay (see appendix B)
With this relay (H), the neutral conductor of the AC output is grounded to the chassis
when the back feed safety relay is open. This ensures the correct operation of earth
leakage circuit breakers in the output.
In case a non-grounded output is required during inverter operation, this function can
be turned off with help of VEConfigure.
Not adjustable with DIP switches.
Battery charge curve
The standard setting is ‘Four-stage adaptive with BatterySafe mode’. See Section 2
for a description.
This is the recommended charge curve. See the help files in the software
configuration programs for other features.
Alternatively, ‘Fixed’ mode can be selected with DIP switches.
Battery type
The standard setting is the most suitable for Victron Gel Deep Discharge, Gel Exide
A200, and tubular plate stationary batteries (OPzS). This setting can also be used for
many other batteries: e.g. Victron AGM Deep Discharge and other AGM batteries,
and many types of flooded flat-plate lead-acid batteries. Four charging voltages can
be set with DIP switches.
Absorption time
The absortion time depends on the bulk time (adaptive charge curve), so that the
battery is optimally charged. If the ‘fixed’ charging characteristic is selected, the
absorption time is fixed. For most batteries, a maximum absorption time of eight hours
is suitable. If an extra high absorption voltage is selected for rapid charging (only
possible for open, flooded batteries!), four hours is preferable. With DIP switches, a
time of eight or four hours can be set. For the adaptive charge curve, this determines
the maximum absorption time.
20
EN
Storage voltage, Repeated Absorption Time, Absorption Repeat Interval
See Section 2. Not adjustable with DIP switches.
Appendix
Bulk Protection
When this setting is ‘on’, the bulk charging time is limited to 10 hours. A longer
charging time could indicate a system error (e.g. a battery cell short-circuit). Not
adjustable with DIP switches.
AC input current limit
These are the current limit settings at which PowerControl and PowerAssist come
into operation. The factory setting is 50A.
See Section 2, the book 'Energy Unlimited', or the many descriptions of this unique
feature on our website www.victronenergy.com .
Remark: lowest allowable current setting for PowerAssist: 11A.
(11A per unit in case of parallel operation)
UPS feature
If this setting is ‘on’ and AC on the input fails, the MultiPlus switches to inverter
operation practically without interruption. The MultiPlus can therefore be used as an
Uninterruptible Power Supply (UPS) for sensitive equipment such as computers or
communication systems.
The output voltage of some small generator sets is too unstable and distorted for
using this setting* – the MultiPlus would continually switch to inverter operation. For
this reason, the setting can be turned off. The MultiPlus will then respond less quickly
to AC input voltage deviations. The switchover time to inverter operation is
consequently slightly longer, but most equipment (most computers, clocks or
household equipment) is not adversely impacted.
Recommendation: Turn the UPS feature off if the MultiPlus fails to synchronise, or
continually switches back to inverter operation.
*In general, the UPS setting can be left ‘on’ if the MultiPlus is connected to a
generator with a ‘synchronous AVR regulated alternator’.
The UPS mode may have to be set to ‘off’ if the MultiPlus is connected to a generator
with a ‘synchronous capacitor regulated alternator’ or an asynchronous alternator.
Dynamic current limiter
Intended for generators, the AC voltage being generated by means of a static inverter
(so-called ‘inverter’ generators). In these generators, rpm is down-controlled if the
load is low: this reduces noise, fuel consumption and pollution. A disadvantage is that
the output voltage will drop severely or even completely fail in the event of a sudden
load increase. More load can only be supplied after the engine is up to speed.
If this setting is ‘on’, the MultiPlus will start supplying extra power at a low generator
output level and gradually allow the generator to supply more, until the set current
limit is reached. This allows the generator engine to get up to speed.
This setting is also often used for ‘classic’ generators that respond slowly to sudden
load variation.
21
WeakAC
Strong distortion of the input voltage can result in the charger hardly operating or not
operating at all. If WeakAC is set, the charger will also accept a strongly distorted
voltage, at the cost of greater distortion of the input current.
Recommendation: Turn WeakAC on if the charger is hardly charging or not charging
at all (which is quite rare!). Also turn on the dynamic current limiter simultaneously,
and reduce the maximum charging current to prevent overloading the generator if
necessary.
Not adjustable with DIP switches.
BoostFactor
Change this setting only after consulting with Victron Energy or with an engineer
trained by Victron Energy!
Not adjustable with DIP switches.
Multi-functional relay
By default, the multi-functional relay is set as an alarm relay, i.e. the relay will deenergise in the event of an alarm or a pre-alarm (inverter almost too hot, ripple on the
input almost too high, battery voltage almost too low). Not adjustable with DIP
switches.
VirtualSwitch
The VirtualSwitch is a software function in the MultiPlus microprocessor. The inputs of
this function are parameters that can be selected with VEConfigure (e.g. certain
alarms or voltage levels). The output is binary (0 or 1). The output can be connected
to a binary microprocessor output (e.g. the multi-functional relay, or the relay in the
AC input).
If connected to the multi-functional relay, and with battery voltage and time as input
values, for example, the VirtualSwitch can be configured to supply a generator
starting signal.
If connected to an AC input relay, and with battery voltage and time as input, for
example, the connected mains supply can be interrupted.
Application: A house or an office connected to the public mains, fitted with solar panels
with energy storage in batteries.
The batteries are used to prevent return delivery to the mains. During the day,
redundant solar energy is stored in batteries. This energy is used in the evenings
and at night. An energy shortfall is compensated by the mains. The MultiPlus
converts the battery DC voltage to AC. The power is always less than or equal to the
power consumption, so that return delivery to the mains does not occur. In the event
of mains failure, the MultiPlus isolates the premises from the mains, which become
autonomous (self-sufficient). In this way, a solar energy installation or a combined
micro-scale heating and power plant can be economically used in areas with an
unreliable mains supply and/or financially unfavourable energy-return conditions.
22
5.3 Configuration by computer
5.3.1 VE.Bus Quick Configure Setup
VE.Bus Quick Configure Setup is a software program with which systems with a
maximum of three MultiPlus units (parallel or three phase operation) can be
configured in a simple manner. VEConfigureII forms part of this program.
The software free can be downloaded free of charge at www.victronenergy.com.
For connection to the computer, a RJ45 UTP cable and the MK2.2b RS485-to-RS232
interface is required.
If the computer has no RS232 connection, but does have USB, a RS232-to-USB
interface cable is needed. Both are available from Victron Energy.
5.3.2 VE.Bus System Configurator and dongle
For configuring advanced applications and/or systems with four or more MultiPlus
units, VE.Bus System Configurator software must be used. The software can be
downloaded free of charge at www.victronenergy.com . VEConfigureII forms part of
this program.
The system can be configured without a dongle, and will be fully functional during 15
minutes (as a demonstration facility). For permanent use, a dongle – available at
additional charge – is required.
For connection to the computer, a RJ45 UTP cable and the MK2.2b RS485-to-RS232
interface is required.
If the computer has no RS232 connection, but does have USB, a RS232-to-USB
interface cable is needed. Both are available from Victron Energy.
5.4 Configuration with a VE.Net panel
To this end, a VE.Net panel and the VE.Net to VE.Bus converter is required.
With VE.Net all parameters are accessible, with the exception of the multi-functional
relay and the VirtualSwitch.
23
Appendix
For changing settings with the computer, the following is required:
•
VEConfigureII software: can be downloaded free of charge at
www.victronenergy.com.
•
A RJ45 UTP cable and the MK2.2b RS485-to-RS232 interface. If the
computer has no RS232 connection, but does have USB, a RS232-to-USB
interface cable is needed. Both are available from Victron Energy.
EN
All settings can be changed by means of a computer or with a VE.Net panel (except
for the multi-functional relay and the VirtualSwitch when using VE.Net).
The most common settings (including parallel and 3-phase operation) can be
changed by means of DIP switches (see Section 5.5).
5.5 Configuration with DIP switches
A number of settings can be changed using DIP switches (see appendix A, position
M).
This is done as follows:
Turn the MultiPlus on, preferably without load en without AC voltage on the input. The
MultiPlus will then operate in inverter mode.
Step 1: Setting the DIP switches for:
- the required current limitation of the AC input.
- AES (Automatic Economy Switch)
- maximum charge current.
- selection of stand-alone, parallel or 3-phase operation.
To store the settings after the required values have been set: press the 'Up' button for
2 seconds (upper button to the right of the DIP switches, see appendix A, position J).
The DIP switches can now be used to apply the remaining settings (step 2).
Step 2: other settings
To store the settings after the required values have been set: press the 'Down' button
for 2 seconds (lower button to the right of the DIP switches). The DIP switches can be
left in the selected positions, so that the ’other settings’ can always be recovered.
Remarks:
- The DIP switch functions are described in 'top to bottom' order. Since the uppermost
DIP switch has the highest number (8), descriptions start with the switch numbered 8.
- In parallel mode or 3-phase mode, not all devices require all settings to be made
(see section 5.5.1.4).
For parallel or 3-phase mode, read the whole setting procedure and make a note of
the required DIP switch settings before actually implementing them.
24
EN
5.5.1 Step 1
5.5.1.1 Current limitation AC input (default: 50A)
If the current demand (MultiPlus load + battery charger) threatens to exceed the set
AC input current, the MultiPlus will first reduce its charging current (PowerControl),
and subsequently supply additional power from the battery (PowerAssist), if
needed.
Appendix
The AC input current limit can be set to eight different values by means of DIP
switches.
With a Multi Control Panel, a variable current limit can be set for the AC input.
Remark: With a VE.bus Control Panel or a Digital Control Panel and an external
AC change-over switch two different limits can be set, for two AC sources, for
example the mains/grid and a generator.
Procedure
The AC input current limit can be set using DIP switches ds8, ds7 and ds6 (default
setting: 50A).
Procedure: set the DIP switches to the required value:
ds8 ds7 ds6
off off off = 15A (1.8kVA at 120V)
off off on = 20A (2.4kVA at 120V)
off on off = 25A (3.0kVA at 120V)
off on on = 30A (3.6kVA at 120V)
on off off = 35A (4.2kVA at 120V)
on off on = 40A (4.8kVA at 120V)
on on off = 50A (6.0kVA at 120V)
on on on = not used
Remark: Manufacturer-specified continuous power ratings for small generators
are sometimes inclined to be rather optimistic. In that case, the
current limit should be set to a much lower value than would
otherwise be required on the basis of manufacturer-specified data.
5.5.1.2 AES (Automatic Economy Switch)
Procedure: set ds5 to the required value:
ds5
off = AES off
on = AES on
25
5.5.1.3 Battery charge current limitation (default setting 75%)
For maximum battery life, a charge current of 10% to 20% of the capacity in Ah
should be applied.
Example: optimal charge current of a 24V/500Ah battery bank: 50A to 100A.
The temperature sensor supplied automatically adjusts the charging voltage to the
battery temperature.
If faster charging – and a subsequent higher current – is required:
- The temperature sensor supplied should always be fitted, since fast charging can
lead to a considerable temperature rise of the battery bank. The charging voltage will
be adapted to the higher temperature (i.e. lowered) by means of the temperature
sensor.
- The bulk charge time will sometimes be so short that a fixed absorption time would
be more satisfactory (‘fixed’ absorption time, see ds5, step 2).
Procedure
The battery charge current can be set in four steps, using DIP switches ds4 and ds3
(default setting: 75%).
ds4 ds3
off off = 25%
off on = 50%
on off = 75%
on on = 100%
26
27
Appendix
The combination ds2=on and ds1=on is not used.
EN
5.5.1.4 Stand-alone, parallel, 3-phase and split phase operation
Using DIP switches ds2 and ds1, three system configurations can be selected.
NOTE:
- When configuring a parallel, 3-phase or split phase system, all related devices
should be interconnected using RJ45 UTP cables (see appendix C, D). All devices
must be turned on. They will subsequently return an error code (see Section 7),
since they have been integrated into a system and still are configured as ‘standalone’. This error message can safely be ignored.
- Storing settings (by pressing the ‘Up’ button (step 1) – and later on the ‘Down’
button (step 2) – for 2 seconds) should be done on one device only. This device is
the ‘master’ in a parallel system or the ‘leader’ (L1) in a 3-phase or split phase
system.
In a parallel system, the step-1 setting of DIP switches ds8 to ds3 need to be done on
the master only. The slaves will follow the master with regard to these settings (hence
the master/slave relationship).
In a 3-phase or split phase system, a number of settings are also required for the
other devices, i.e. the followers (for phases L2 and L3).
(The followers, therefore, do not follow the leader for all settings, hence the
leader/follower terminology).
- A change in the setting ‘stand-alone / parallel / 3-phase’ is only activated after the
setting has been stored (by pressing the ‘UP’ button for 2 seconds) and after all
devices have been turned off and then on again. In order to start up a VE.Bus system
correctly, all devices should therefore be turned off after the settings have been
stored. They can then be turned on in any order. The system will not start until all
devices have been turned on.
- Note that only identical devices can be integrated in one system. Any attempt to use
different models in one system will fail. Such devices may possibly function correctly
again only after individual reconfiguration for ‘stand-alone’ operation.
DIP switches ds2 and ds1 are reserved for the selection of stand-alone, parallel
or
3-phase operation
Stand-alone operation
Step 1: Setting ds2 and ds1 for stand-alone operation
DS-8 AC input
Set as desired
DS-7 AC input
Set as desired
DS-6 AC input
Set as desired
DS-5 AES
Set as desired
DS-4 Charging current Set as desired
DS-3 Charging current Set as desired
DS-2 Stand-alone operation
DS-1 Stand-alone operation
off
off
Examples of the other DIP switch settings for stand-alone mode are given below.
Example 1 shows the factory setting
Note: since factory settings are entered by computer, all DIP switches of a new product are set to
‘off’ and do not reflect the actual settings in the microprocessor.
Four examples of stand-alone settings:
DS-8 AC input
DS-7 AC input
DS-6 AC input
DS-5 AES
DS-4 Ch. current
DS-3 Ch. current
DS-2 St.-alone mode
DS-1 St.-alone mode
on
on
off
off
on
off
off
off
Step1, stand-alone
Example 1 (factory setting):
8, 7, 6 AC-in: 50A
5 AES: off
4, 3 Charging current: 75%
2, 1 Stand-alone mode
DS-8
DS-7
DS-6
DS-5
DS-4
DS-3
DS-2
DS-1
on
on
off
off
on
on
off
off
Step1, stand-alone
Example 2:
8, 7, 6 AC-in: 50A
5 AES: off
4, 3 Charge: 100%
2, 1 Stand-alone
DS-8
DS-7
DS-6
DS-5
DS-4
DS-3
DS-2
DS-1
off
on
on
off
on
on
off
off
Step1, stand-alone
Example 3:
8, 7, 6 AC-in: 30A
5 AES: off
4, 3 Charge: 100%
2, 1 Stand-alone
DS-8
DS-7
DS-6
DS-5
DS-4
DS-3
DS-2
DS-1
on
off
on
on
off
on
Step1, stand-alone
Example 4:
8, 7, 6 AC-in: 40A
5 AES: on
4, 3 Charge: 50%
2, 1 Stand-alone
To store the settings after the required values have been set: press the 'Up' button for 2 seconds
(upper button to the right of the DIP switches, see appendix A, position J). The overload and lowbattery LED’s will flash to indicate acceptance of the settings.
We recommend making a note of the settings, and filing this information in a safe place.
You can now re-use the DIP switches to apply the remaining settings (step 2).
28
off
off
Master
Slave 1
Set
Set
Set
na
Set
Set
off
on
DS-8 na
DS-7 na
DS-6 na
DS-5 na
DS-4 na
DS-3 na
DS-2 Slave 1
DS-1 Slave 1
Slave 2 (optional)
off
off
DS-8 na
DS-7 na
DS-6 na
DS-5 na
DS-4 na
DS-3 na
DS-2 Slave 2
DS-1 Slave 2
Appendix
DS-8 AC input
DS-7 AC input
DS-6 AC input
DS-5 AES
DS-4 Ch. current
DS-3 Ch. current
DS-2 Master
DS-1 Master
EN
Parallel operation (appendix C)
Step 1: Setting ds2 and ds1 for parallel operation
off
on
The current settings (AC current limitation and charging current) are multiplied by the
number of devices. However, the AC current limitation setting when using a remote
panel will always correspond to the value indicated on the panel and is not multiplied
by the number of devices.
Example: 9kVA parallel system
- If an AC input current limit of 20A is set on the master and the system consists of three devices,
then the effective system current limit will be equal to 3 x 20 = 60A.
- If a 30A panel is connected to the master, the system current limit is adjustable to a maximum of
30A, regardless of the number of devices.
- If the charging current on the master is set to 100% (70A for a MultiPlus 24/3000/70) and the
system consists of three devices, then the effective system charging current is equal to 3 x 70 =
210A.
The settings according to this example (9kVA parallel system with 30A Multi Control Panel) are as
follows:
29
Master
DS-8 na (30A panel)
DS-7 na (30A panel)
DS-6 na (30A panel)
DS-5 AES na
DS-4 Ch. current 3x70A
DS-3 Ch. current 3x70A
DS-2 Master
DS-1 Master
Slave 1
on
on
off
on
DS-8 na
DS-7 na
DS-6 na
DS-5 na
DS-4 na
DS-3 na
DS-2 Slave 1
DS-1 Slave 1
Slave 2
off
off
DS-8 na
DS-7 na
DS-6 na
DS-5 na
DS-4 na
DS-3 na
DS-2 Slave 2
DS-1 Slave 2
off
on
To store the settings after the required values have been set: press the 'Up' button of the master
for 2 seconds (upper button to the right of the DIP switches, see appendix A, position J). The
overload and low-battery LED’s will flash to indicate acceptance of the settings.
We recommend making a note of the settings, and filing this information in a safe place.
You can now re-use the DIP switches to apply the remaining settings (step 2).
30
Leader (L1)
Follower (L2)
Set
Set
Set
na
Set
Set
DS-8 Set
DS-7 Set
DS-6 Set
DS-5 na
DS-4 na
DS-3 na
DS-2 Follower 1
DS-1 Follower 1
on
off
Follower (L3)
DS-8 Set
DS-7 Set
DS-6 Set
DS-5 na
DS-4 na
DS-3 na
DS-2 Follower 2
DS-1 Follower 2
off
off
Appendix
DS-8 AC input
DS-7 AC input
DS-6 AC input
DS-5 AES
DS-4 Ch. current
DS-3 Ch. current
DS-2 Leader
DS-1 Leader
EN
Three phase operation (appendix D)
Step 1: Setting ds2 and ds1 for 3-phase operation
off
on
As the table above shows, the AC-in current limits for each phase should be set
separately (ds8 thru ds6). Different current limits per phase can be selected.
If a panel is connected, the AC input current limit will equal the value set on the panel
for all phases.
AES can be used on stand alone units only.
The maximum charge current is the same for all devices, and should be set on the
leader only (ds4 and ds3).
Example:
- AC input current limit on the leader and the followers: 25A
- If the charge current on the leader is set to 100% (70A for a MultiPlus 24/3000/70) and the
system consists of three devices, then the effective system charge current is equal to
- 3 x 70 = 210A.
The settings according to this example (9kVA 3-phase system without Multi Control Panel) are as
follows:
Leader (L1)
DS-8 AC input
25A
DS-7 AC input
25A
DS-6 AC input
25A
DS-5 AES
na
DS-4 Ch. current 3x70A
DS-3 Ch. current 3x70A
DS-2 Leader
DS-1 Leader
Follower (L2)
off
on
off
on
on
on
off
DS-8 AC in 25A
DS-7 AC in 25A
DS-6 AC in 25A
DS-5 na
DS-4 na
DS-3 na
DS-2 Follower 1
DS-1 Follower 1
Follower (L3)
off
on
off
off
off
DS-8 AC in 25A
DS-7 AC in 25A
DS-6 AC in 25A
DS-5 na
DS-4 na
DS-3 na
DS-2 Follower 2
DS-1 Follower 2
off
on
off
off
on
To store the settings after the required values have been set: press the 'Up' button of the leader
for 2 seconds (upper button to the right of the DIP switches, see appendix A, position J). The
overload and low-battery LED’s will flash to indicate acceptance of the settings.
We recommend making a note of the settings, and filing this information in a safe place.
You can now re-use the DIP switches to apply the remaining settings (step 2).
31
Split phase operation (see figure 2a and 2b)
Step 1: Setting ds2 and ds1 for 2-phase (= split phase) operation
Leader (L1)
Follower (L2)
DS-8 AC input
DS-7 AC input
DS-6 AC input
DS-5 AES
DS-4 Ch. current
DS-3 Ch. current
DS-2 Leader
DS-1 Leader
Set
Set
Set
na
Set
Set
DS-8 Set
DS-7 Set
DS-6 Set
DS-5 na
DS-4 na
DS-3 na
DS-2 Follower 1
DS-1 Follower 1
on
off
off
off
As the table above shows, the current limits for each phase should be set separately
(ds8 thru ds5). Different current limits per phase can be selected.
If a panel is connected, the AC input current limit will equal the value set on the panel
for all phases.
The maximum charging current is the same for all devices, and should be set on the
leader (ds4 and ds3).
Example:
- AC input current limitation on the leader and the followers: 30A (setting for generator power
30 x 120 x 2 = 7kVA).
- If the charging current on the leader is set to 100% (120A for a MultiPlus 24/5000/120) and the
system consists of two devices, then the effective system charging current is equal to 2 x 120 =
240A.
The settings according to this example (15kVA 2-phase system) are as follows:
Leader (L1)
DS-8 AC input
DS-7 AC input
DS-6 AC input
DS-5 AES
DS-4 Ch. current
DS-3 Ch. current
DS-2 Leader
DS-1 Leader
30A
30A
30A
na
2x120A
2x120A
Follower (L2)
off
on
on
on
on
on
off
DS-8 AC in 30A
DS-7 AC in 30A
DS-6 AC in 30A
DS-5 na
DS-4 na
DS-3 na
DS-2 Follower 1
DS-1 Follower 1
off
on
on
off
off
To store the settings after the required values have been set: press the 'Up' button of the leader
for 2 seconds (upper button to the right of the DIP switches, see appendix A, position K). The
overload and low-battery LED’s will flash to indicate acceptance of the settings.
We recommend making a note of the settings, and filing this information in a safe place.
You can now re-use the DIP switches to apply the remaining settings (step 2).
32
EN
5.5.2 Step 2: Other settings
Parellel operation: the remaining settings are not relevant (na) for slaves.
Three Phase or split phase: some of the remaining settings are not relevant for
followers (L2, L3). These settings are imposed on the whole system by the leader
L1. If a setting is irrelevant for L2, L3 devices, this is mentioned explicitly.
Appendix
ds8-ds7: Setting charging voltages (not relevant for L2, L3)
ds8-ds7
Absorption
voltage
Float
oltage
Storage
voltage
off
off
14.1
28.2
56.4
13.8
27.6
55.2
13.2
26.4
52.8
off
on
14.4
28.8
57.6
13.8
27.6
55.2
13.2
26.4
52.8
on
off
14.7
29.4
58.8
13.8
27.6
55.2
13.2
26.4
52.8
on
on
15.0
30.0
60.0
13.8
27.6
55.2
13.2
26.4
52.8
Suitable for
Gel Victron Long Life (OPzV)
Gel Exide A600 (OPzV)
Gel MK battery
Gel Victron Deep Discharge
Gel Exide A200
AGM Victron Deep Discharge
Stationary tubular plate (OPzS)
AGM Victron Deep Discharge
Tubular plate traction batteries
in semi-float mode
AGM spiral cell
Tubular plate traction batteries
in cyclic mode
ds6: absorption time 8 or 4 hours
(na for L2, L3) on = 8 hours
off = 4 hours
ds5: adaptive charging characteristic
(na for L2, L3) on = active
off = inactive
ds4: dynamic current limiter
on = active
off = inactive
ds3: UPS function
on = active
off = inactive
ds2: converter voltage
on = 120V
off = 115V
ds1: converter frequency
(na for L2, L3) on = 50Hz
(the wide input frequency range (45-55Hz) is 'on' by default)
off = 60Hz
(inactive = fixed absorption time)
33
Step 2: Exemplary settings for stand-alone mode
Example 1 is the factory setting.
Note: since factory settings are entered by computer, all DIP switches of a new product are set to
‘off’ and do not reflect the actual settings in the microprocessor.
DS-8 Ch. voltage
DS-7 Ch. voltage
DS-6 Absorpt. time
DS-5 Adaptive ch.
DS-4 Dyn. Curr. limit
DS-3 UPS function:
DS-2 Voltage
DS-1 Frequency
off
on
on
on
off
on
on
off
Step 2
Example 1 (factory setting):
8, 7 GEL 14,4V
6 Absorption time: 8 hours
5 Adaptive charging: on
4 Dynamic current limit: off
3 UPS function: on
2 Voltage: 120V
1 Frequency: 60Hz
DS-8
DS-7
DS-6
DS-5
DS-4
DS-3
DS-2
DS-1
off
off
on
on
off
off
on
on
Step 2
Example 2:
8, 7 OPzV 14,1V
6 Abs. time: 8 h
5 Adaptive ch.: on
4 Dyn. Curr. limit: off
3 UPS function: off
2 Voltage: 120V
1 Frequency: 50Hz
DS-8
DS-7
DS-6
DS-5
DS-4
DS-3
DS-2
DS-1
on
off
on
on
on
off
off
on
Step 2
Example 3:
8, 7 AGM 14,7V
6 Abs. time: 8 h
5 Adaptive ch: on
4 Dyn. Curr. limit: on
3 UPS function: off
2 Voltage: 115V
1 Frequency: 50Hz
DS-8
DS-7
DS-6
DS-5
DS-4
DS-3
DS-2
DS-1
on
on
off
off
off
on
Step 2
Example 4:
8, 7 Tub.-plate 15V
6 Abs. time: 4 h
5 Fixed abs. time
4 Dyn. Curr. limit: off
3 UPS function: on
2 Voltage: 115V
1 Frequency: 60Hz
To store the settings after the required values have been set: press the 'Down' button
for 2 seconds (lower button to the right of the DIP switches). The temperature and
low-battery LED’s will flash to indicate acceptance of the settings.
You can then leave the DIP switches in the selected positions, so that the ’other
settings’ can always be recovered.
34
off
off
DS-8 Ch. voltage(GEL 14,4V)
DS-7 Ch. voltage(GEL 14,4V)
DS-6 Absorption time (8 h)
DS-5 Adaptive charging (on)
DS-4 Dyn. current limit (off)
DS-3 UPS function (on)
DS-2 Voltage (120V)
DS-1 Frequency (60Hz)
Slave 1
off
on
on
on
off
on
on
off
DS-8 na
DS-7 na
DS-6 na
DS-5 na
DS-4 na
DS-3 na
DS-2 na
DS-1 na
Slave 2
Appendix
Master
EN
Step 2: Exemplary setting for parallel mode
In this example, the master is configured according to factory settings.
The slaves do not require setting!
DS-8 na
DS-7 na
DS-6 na
DS-5 na
DS-4 na
DS-3 na
DS-2 na
DS-1 na
To store the settings after the required values have been set: press the 'Down' button
of the master for 2 seconds (lower button to the right of the DIP switches). The
temperature and low-battery LED’s will flash to indicate acceptance of the
settings.
You can then leave the DIP switches in the selected positions, so that the ’other
settings’ can always be recovered.
To start the system: first, turn all devices off. The system will start up as soon
as all devices have been turned on.
35
Step 2: Exemplary setting for 3-phase mode
In this example the leader is configured according to factory settings.
Leader (L1)
DS-8 Ch. Volt. GEL 14,4V
DS-7 Ch. Volt. GEL 14,4V
DS-6 Absorption time (8 h)
DS-5 Adaptive ch. (on)
DS-4 Dyn. current limit (off)
DS-3 UPS function (on)
DS-2 Voltage (120V)
DS-1 Frequency (60Hz)
Follower (L2)
off
on
on
on
off
on
on
off
DS-8 na
DS-7 na
DS-6 na
DS-5 na
DS-4 D. c. l. (off)
DS-3 UPS f. (on)
DS-2 V (120V)
DS-1 na
Follower (L3)
off
on
on
DS-8 na
DS-7 na
DS-6 na
DS-5 na
DS-4 D. c. l. (off)
DS-3 UPS f. (on)
DS-2 V (120V)
DS-1 na
off
on
on
To store the settings after the required values have been set: press the 'Down' button
of the leader for 2 seconds (lower button to the right of the DIP switches). The
temperature and low-battery LED’s will flash to indicate acceptance of the
settings.
You can then leave the DIP switches in the selected positions, so that the ’other
settings’ can always be recovered.
To start the system: first, turn all devices off. The system will start up as soon
as all devices have been turned on.
6. Maintenance
The MultiPlus does not require specific maintenance. It will suffice to check all
connections once a year. Avoid moisture and oil/soot/vapours, and keep the device
clean.
36
With the procedures below, most errors can be quickly identified. If an error cannot be
resolved, please refer to your Victron Energy supplier.
Appendix
7.1 General error indications
Problem
Cause
Solution
No output voltage on
AC-out-2.
MultiPlus in inverter mode
Defective fuse F3 (see
appendix A).
Circuit breaker or fuse in the
AC-in input is open as a result
of overload.
The battery voltage is
excessively high or too low.
No voltage on DC connection.
The battery voltage is low.
Remove overload or short
circuit on AC-out-2 and
replace fuse F3 (16A).
Remove overload or short
circuit on AC-out, and reset
fuse/breaker.
Ensure that the battery voltage
is within the correct range.
MultiPlus will not switch
over to generator or
mains operation.
Inverter operation not
initiated when switched
on.
“Low battery” LED
flashes.
“Low battery” LED lights.
“Overload” LED flashes.
“Overload” LED lights.
“Temperature” LED
flashes or lights.
The converter switches off
because the battery voltage is
too low.
The converter load is higher
than the nominal load.
The converter is switched off
due to excessively high load.
The environmental
temperature is high, or the
load is too high.
“Low battery” and
“overload” LEDs flash
intermittently.
Low battery voltage and
excessively high load.
“Low battery” and
“overload” LEDs flash
simultaneously.
Ripple voltage on the DC
connection exceeds 1,5Vrms.
“Low battery” and
“overload” LEDs light.
The inverter is switched off
due to an excessively high
ripple voltage on the input.
EN
7. Error indications
Charge the battery or check
the battery connections.
Charge the battery or check
the battery connections.
Reduce the load.
Reduce the load.
Install the converter in cool
and well-ventilated
environment, or reduce the
load.
Charge the batteries,
disconnect or reduce the load,
or install higher capacity
batteries. Fit shorter and/or
thicker battery cables.
Check the battery cables and
battery connections. Check
whether battery capacity is
sufficiently high, and increase
this if necessary.
Install batteries with a larger
capacity. Fit shorter and/or
thicker battery cables, and
reset the inverter (switch off,
and then on again).
37
One alarm LED lights
and the second flashes.
The charger does not
operate.
Check this table for
The inverter is switched off
due to alarm activation by the
appropriate measures in
lighted LED. The flashing LED
regard to this alarm state.
indicates that the inverter was
about to switch off due to the
related alarm.
The AC input voltage or
Ensure that the AC input is
frequency is not within the range between 95 VAC and 140 VAC,
set.
and that the frequency is within
the range set (default setting 4565Hz).
Circuit breaker or fuse in the
Remove overload or short circuit
AC-in input is open as a result of on AC-out, and reset
overload.
fuse/breaker.
The battery fuse has blown.
Replace the battery fuse.
The distortion or the AC input
voltage is too large (generally
generator supply).
38
Turn the settings WeakAC and
dynamic current limiter on.
Charging current excessively
high, causing premature
absorption phase.
Poor battery connection.
Set the charging current to a
level between 0.1 and 0.2 times
the battery capacity.
Check the battery connections.
The battery is
overcharged.
The charging current
drops to 0 as soon as the
absorption phase initiates.
The float voltage has been set to
an incorrect level (too low).
The available charging time is
too short to fully charge the
battery.
The absorption time is too short.
For adaptive charging this can
be caused by an extremely high
charging current with respect to
battery capacity, so that bulk
time is insufficient.
The absorption voltage is set to
an incorrect level (too high).
The float voltage is set to an
incorrect level (too high).
Poor battery condition.
Set the float voltage to the
correct level.
Select a longer charging time or
higher charging current.
The battery temperature is too
high (due to poor ventilation,
excessively high environmental
temperature, or excessively
high charging current).
The battery is over-heated
(>50°C)
Improve ventilation, install
batteries in a cooler
environment, reduce the
charging current, and connect
the temperature sensor.
Install the battery in a
cooler environment
Reduce the charging
current
Check whether one of the
battery cells has an internal
short circuit
Disconnect the temperature
sensor plug in the MultiPlus. If
charging functions correctly
after approximately 1 minute,
the temperature sensor should
be replaced.
Defective battery temperature
sensor
Reduce the charging current or
select the ‘fixed’ charging
characteristics.
Set the absorption voltage to
the correct level.
Set the float voltage to the
correct level.
Replace the battery.
39
Appendix
The absorption voltage has been Set the absorption voltage to the
set to an incorrect level (too low). correct level.
EN
The battery is not
completely charged.
7.2 Special LED indications
(for the normal LED indications, see section 3.4)
Bulk and absorption LEDs flash synchronously
(simultaneously).
Absorption and float LEDs flash synchronously
(simultaneously).
"Mains on" flashes and there is no output
voltage.
40
Voltage sense error. The voltage
measured at the voltage sense
connection deviates too much
(more than 7V) from the voltage
on the positive and negative
connection of the device. There
is probably a connection error.
The device will remain in normal
operation.
NOTE: If the "inverter on" LED
flashes in phase opposition, this
is a VE.Bus error code (see
further on).
The battery temperature as
measured has an extremely
unlikely value. The sensor is
probably defective or has been
incorrectly connected. The
device will remain in normal
operation.
NOTE: If the "inverter on" LED
flashes in phase opposition, this
a VE.Bus error code (see further
on).
The device is in "charger only"
operation and mains supply is
present. The device rejects the
mains supply or is still
synchronising.
7.3 VE.Bus LED indications
EN
Appendix
Equipment included in a VE.Bus system (a parallel or 3-phase arrangement) can
provide so-called VE.Bus LED indications. These LED indications can be
subdivided into two groups: OK codes and error codes.
7.3.1 VE.Bus OK codes
If the internal status of a device is in order but the device cannot yet be started
because one or more other devices in the system indicate an error status, the
devices that are in order will indicate an OK code. This facilitates error tracing in a
VE.Bus system, since devices not requiring attention are easily identified as such.
Important: OK codes will only be displayed if a device is not in inverter or charging
operation!
•
A flashing "bulk" LED indicates that the device can perform inverter
operation.
•
A flashing "float" LED indicates that the device can perform charging
operation.
NOTE: In principle, all other LEDs must be off. If this is not the case, the code is not
an OK code.
However, the following exceptions apply:
- The special LED indications above can occur together with the OK codes.
- The "low battery" LED can function together with the OK code that indicates that the
device can charge.
41
7.3.2 VE.Bus error codes
A VE.Bus system can display various error codes. These codes are displayed with the
"inverter on", "bulk", "absorption" and "float" LEDs.
To interpret a VE.Bus error code correctly, the following procedure should be
followed:
1. Is the "inverter on" LED flashing? If not, then there is no VE.Bus error code.
2. If one or more of the LEDs "bulk", "absorption" or "float" flashes, then this flash
must be in phase opposition to the "inverter on" LED, i.e. the flashing LEDs are off if
the "inverter on" LED is on, and vice versa. If this is not the case, then there is no
VE.Bus error code.
3. Check the "bulk" LED, and determine which of the three tables below should be
used.
4. Select the correct column and row (depending on the "absorption" and "float"
LEDs), and determine the error code.
5. Determine the meaning of the code in the tables below.
Bulk LED off
Float LED
Absorption LED
off
Flashing
on
off
0
3
6
flashing
1
4
7
on
2
5
8
Bulk LED flashes
Float LED
Absorption LED
off
Flashing
on
off
9
12
15
flashing
10
13
16
on
11
14
17
Bulk LED on
Float LED
Absorption LED
42
off
Flashing
on
off
18
21
24
flashing
19
22
25
on
20
23
26
3
5
10
14
16
17
18
22
24
No other device whatsoever
detected.
Overvoltage on AC-out.
System time synchronisation
problem occurred.
Device cannot transmit data.
System is switched off because it is
a so-called extended system and a
‘dongle’ is not connected.
One of the devices has assumed
‘master’ status because the original
master failed.
Overvoltage has occurred.
This device cannot function as
‘slave’.
Switch-over system protection
initiated.
25
Firmware incompatibility. The
firmware of one the connected
devices is not sufficiently up to date
to operate in conjunction with this
device.
26
Internal error.
Cause/solution:
Check the failing phase.
The system is not properly configured.
Reconfigure the system.
Communication cable error. Check the cables
and switch all equipment off, and then on again.
Check the communication cables.
Check the AC cables.
Should not occur in correctly installed
equipment. Check the communication cables.
Check the communication cables (there may be
a short circuit).
Connect dongle.
Check the failing unit. Check the communication
cables.
Check AC cables.
This device is an obsolete and unsuitable
model. It should be replaced.
Should not occur in correctly installed
equipment. Switch all equipment off, and then
on again. If the problem recurs, check the
installation.
1) Switch all equipment off.
2) Switch the device returning this error
message on.
3) Switch on all other devices one by one until
the error message reoccurs.
4) Update the firmware in the last device that
was switched on.
Should not occur. Switch all equipment off, and
then on again. Contact Victron Energy if the
problem persists.
43
Appendix
4
Meaning:
Device is switched off because one
of the other phases in the system
has switched off.
Not all, or more than, the expected
devices were found in the system.
EN
Code
1
8. Technical specifications
MultiPlus
12 Volt
24 Volt
12/3000/120 – 50 120V
24/3000/70 – 50 120V
PowerControl / PowerAssist
yes
Transfer switch
50A
Minimum PowerAssist current
11A
INVERTER
Input voltage range
Output (1)
9,5 – 17 V
19 – 33 V
Output voltage: 120 VAC ± 2%
Cont. output power at 75 °F (VA) (3)
3000
Cont. output power at 75 °F (W)
2500
Cont. output power at 100 °F (W)
2000
Peak power (W)
Frequency: 60 Hz ± 0,1%
6000
Maximum efficiency (%)
93 / 94
Zero-load power (W)
15 / 15
10 / 10
4/5
CHARGER
AC Input
Input voltage range: 95-140 VAC Input frequency: 45 – 65 Hz
Power factor: 1
Charge voltage 'absorption' (V DC)
14,4 / 28,8
Charge voltage 'float' (V DC)
13,8 / 27,6
Storage mode (V DC)
13,2 / 26,4
Charge current house battery (A) (4)
120 / 70
Charge current starter battery (A)
4
Battery temperature sensor
yes
GENERAL
Programmable relay (5)
yes
Protection (2)
a-g
Common Characteristics
Operating temp. range: 0 - 120°F (fan assisted cooling)
Humidity (non condensing) : max 95%
ENCLOSURE
Common Characteristics
Battery-connection
120 V AC-connection
Weight
Dimensions
Material & Colour: aluminum (blue RAL 5012
Protection category: IP 21
M8 bolts (2 plus and 2 minus connections)
screw-terminals 6 AWG (13mm²)
19kg
42 lbs
362 x 258 x 218 mm 14.3 x 10.2 x 8.6 inch
STANDARDS
Safety
Emission / Immunity
44
EN 60335-1, EN 60335-2-29
EN55014-1, EN 55014-2, EN 61000-3-3
EN
1) Can be adjusted to 50Hz
2) Protection
a. Output short circuit
b. Overload
c. Battery voltage too high
d. Battery voltage too low
e. Temperature too high
f. 120VAC on inverter output
g. Input voltage ripple too high
3) Non linear load, crest factor 3:1
4) At 25 °C ambient
5) Programmable relay which can be set for general
alarm, DC undervoltage or genset start signal function
Appendix
45
www.victronenergy.com
J
K
H
B
E
F
A
C
G
L
Appendix
I
EN
APPENDIX A Overview connections
A AC input: (left to right) L (phase), N (neutral), PE (ground).
B 2x RJ45 connector for remote control and/or parallel / three-phase operation
C AC output: (left to right) ) L (phase), N (neutral), PE (ground).
E Battery minus.
F Battery plus.
G Terminals for: (left to right) Voltage sense plus, Voltage sense minus, Starter
battery plus, Temperature sensor plus, Temperature sensor minus.
H Connections for remote switch: Short left and middle terminal to switch the
MultiPlus “on”, Short right and middle terminal to switch the MultiPlus to
“charger only”.
I Dipswitches DS1 tm DS8 for set-up mode.
J Pushbuttons for set-up mode.
K Alarm contact: (left to right) NC, NO, COM
L Primary ground connection (PE)
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EN
APPENDIX B: Block diagram
Appendix
* See table in section 4.2
APPENDIX C: Parallel connection
MASTER Unit 1
SLAVE Unit 2
SLAVE Unit 3
Panel
BAT-
BAT+
BAT-
BATBAT+
BAT+
PE OUT
AC OUT
AC OUT
N
L
To load
PE IN
AC IN
AC IN
N
L
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EN
APPENDIX D: Three phase connection
Appendix
MASTER Unit 1
Follower Unit 2
Follower Unit 3
Panel
BAT-
BAT+
BAT-
BAT+
BAT-
BAT+
PE OUT
AC OUT
AC OUT
N
L3
AC OUT
AC OUT
L2
L1
To load
PE IN
AC IN
AC IN
N
L3
AC IN
AC IN
L2
L1
APPENDIX E: Charge characteristic
C h a rg e c u rre n t
120%
100%
80%
Am ps
60%
40%
20%
0%
T im e
V o l ts
C h a rg e v o lta g e
16
15
14
13
12
11
10
T im e
4-stage charging:
Bulk
Entered when charger is started. Constant current is applied until nominal battery voltage is reached, depending on
temperature and input voltage, after which constant power is applied up to the point where excessive gassing is starting (14.4V
resp. 28.8V, temperature compensated).
Battery Safe
The applied voltage to the battery is raised gradually until the set Absorption voltage is reached. The Battery Safe Mode is part
of the calculated absorption time.
Absorption
The absorption period is dependent on the bulk period. The maximum absorption time is the set Maximum Absorption time.
Float
Float voltage is applied to keep the battery fully charged
Storage
After one day of float charge the output voltage is reduced to storage level. This is 13,2V resp. 26,4V (for 12V and 24V
charger). This will limit water loss to a minimum when the battery is stored for the winter season.
After an adjustable time (default = 7 days) the charger will enter Repeated Absorption-mode for an adjustable time (default =
one hour) to ’refresh’ the battery.
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30
29
28
27
26
25 Volts
24
23
22
21
20
0
5
10 15 20 25 30 35 40 45 50 55 60
Battery temperature
Default output voltages for Float and Absorption are at 25°C.
Reduced Float voltage follows Float voltage and Raised Absorption voltage follows
Absorption voltage.
In adjust mode temperature compensation does not apply.
Appendix
15.0
14.5
14.0
13.5
13.0
Volts 12.5
12.0
11.5
11.0
10.5
10.0
EN
APPENDIX F: Temperature compensation
APPENDIX G: Dimensions
www.victronenergy.com
EN
Appendix
www.victronenergy.com
Victron Energy Blue Power
Distributor:
Serial number:
Version : 00
Date
: 11 February 2009
Victron Energy B.V.
De Paal 35 | 1351 JG Almere
PO Box 50016 | 1305 AA Almere | The Netherlands
General phone
Customer support desk
Fax
: +31 (0)36 535 97 00
: +31 (0)36 535 97 03
: +31 (0)36 535 97 40
E-mail
: [email protected]
www.victronenergy.com
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