Mastervolt Mass Sine Ultra 24/4000 Operating manual

Mass Sine Ultra
24/4000
SINE WAVE INVERTER
EN
USER’S AND INSTALLATION MANUAL
NL
Zie www.mastervolt.com/products/inverters-sine-wave/
DE
Siehe www.mastervolt.com/products/inverters-sine-wave/
FR
Voir www.mastervolt.com/products/inverters-sine-wave/
ES
Vea www.mastervolt.com/products/inverters-sine-wave/
IT
Vedere www.mastervolt.com/products/inverters-sine-wave/
10000010358/01

EN / Mass Sine Ultra
2
OVERVIEW MASS SINE ULTRA
Figure 0-1: Overview of the Mass Sine Ultra
1. Display with front switch
6. Fan (3x)
2. Battery negative
7. Ground stud
3. Battery positive
8. Sync connector (2x)
4. AC output
9. MasterBus connector (2x)
5. DIP switch unit (1x8)

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TABLE OF CONTENTS:
OVERVIEW MASS SINE ULTRA................................................................................................................................................ 2
1GENERAL INFORMATION..............................................................................................................................................5
1.1 Product description.............................................................................................................................................5
1.2 Use of this manual..............................................................................................................................................5
1.3 Validity of this manual.........................................................................................................................................5
1.4 Scope of warranty ..............................................................................................................................................5
1.5 Liability ...............................................................................................................................................................5
1.6 Changes to the Mass Sine Ultra.........................................................................................................................5
1.7 Identification label...............................................................................................................................................5
2SAFETY GUIDELINES AND WARNINGS....................................................................................................................... 6
2.1 Warnings and symbols.......................................................................................................................................6
2.2 Use for intended purpose...................................................................................................................................6
2.3 Organizational measures....................................................................................................................................6
2.4 Warning of special dangers................................................................................................................................6
2.5 General safety and installation precautions........................................................................................................6
2.6 Warning regarding life support applications........................................................................................................7
2.7 Warning regarding the use of batteries...............................................................................................................7
2.8 Correct disposal of this product (waste electrical & electronic equipment).........................................................7
3OPERATION ....................................................................................................................................................................8
3.1 General...............................................................................................................................................................8
3.2 Energy saving mode (selectable).......................................................................................................................8
3.3 Front panel.........................................................................................................................................................8
3.4 Protections .........................................................................................................................................................8
3.5 Maintenance.......................................................................................................................................................9
3.6 Daily use, MasterBus monitoring......................................................................................................................10
4INSTALLATION............................................................................................................................................................. 11
4.1 Unpacking ........................................................................................................................................................11
4.2 Environment..................................................................................................................................................... 11
4.3 Wiring...............................................................................................................................................................11
4.4 Things you need...............................................................................................................................................12
4.5 Removal of the front lid.....................................................................................................................................12
4.6 Mounting the cabinet to a surface ....................................................................................................................13
4.7 Wiring instructions............................................................................................................................................13
4.8 Installation overview.........................................................................................................................................14
4.9 Setting up a MasterBus network....................................................................................................................... 15
4.10 How to set up a MasterBus network.................................................................................................................15
5INSTALLATION OF MULTIPLE CLUSTERED MASS SINE ULTRA’S ........................................................................ 16
5.1 Purpose of a multiple configuration..................................................................................................................16
5.2 General installation guidelines..........................................................................................................................16
5.3 Parallel configuration diagram..........................................................................................................................17
5.4 Three phase configuration diagram..................................................................................................................17
5.5 Multi Mass Sine Ultra communication...............................................................................................................17
5.6 Synchronization................................................................................................................................................17
5.7 Configuration for multiple Mass Sine Ultra systems .........................................................................................18
5.8 MasterBus configuration for clusters ................................................................................................................18
5.9 MasterBus monitoring for a three phase cluster...............................................................................................18
5.10 MasterBus specific alarms for multi Mass Sine Ultra systems..........................................................................19
5.11 DIP switch settings for two Mass Sine Ultra’s in parallel..................................................................................19
5.12 Operation of multiple Mass Sine Ultra systems................................................................................................19

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6CONFIGURATION .........................................................................................................................................................20
6.1 Configuration via dip-switches..........................................................................................................................20
6.2 MasterBus configuration................................................................................................................................... 21
7COMMISSIONING, DECOMMISSIONING.....................................................................................................................23
7.1 Commissioning.................................................................................................................................................23
7.2 Decommissioning.............................................................................................................................................23
7.3 Trouble shooting...............................................................................................................................................23
8TECHNICAL DATA........................................................................................................................................................ 25
8.1 Specifications...................................................................................................................................................25
8.2 Dimensions.......................................................................................................................................................26
9ORDERING INFORMATION..........................................................................................................................................27

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1 GENERAL INFORMATION
1.1 Product description
The Mass Sine Ultra is a sine wave inverter. It converts DC
energy from the battery into AC output power.
1.2 Use of this manual
Copyright © 2015 Mastervolt. All rights reserved.
Reproduction, transfer, distribution or storage of part or all of
the contents in this document in any form without the prior
written permission of Mastervolt is prohibited.
This manual serves as a guideline for the safe and effective
use and installation of the Mass Sine Ultra:
•For the installer this manual gives directions for the
installation, operation and commissioning.
•For the end user, this manual gives directions for the
operation, maintenance and possible correction of minor
malfunctions.
•Every person who works with the device should be
familiar with the contents of this manual, and must
carefully follow the instructions contained herein.
•Store the manual in an accessible place.
1.3 Validity of this manual
This manual is valid for the following model:
Part no
Model
26024000
Mass Sine Ultra 24/4000
All the specifications, provisions and instructions contained
in this manual apply solely to the Mastervolt-delivered
standard version of a single Mass Sine Ultra.
1.4 Scope of warranty
Mastervolt assures the product warranty of the Mass Sine
Ultra during two years after purchase, on the condition that
all instructions and warnings given in this manual are taken
into account during installation and operation.
Among other things, this means that installation is carried
out by a qualified electrician, that installation and
maintenance are executed according to the stated
instructions and correct working sequence, and that no
changes or repairs may have been performed on the Mass
Sine Ultra other than by Mastervolt. The warranty is limited
to the costs of repair and/or replacement of the product by
Mastervolt only.
Costs for installation labour, shipping of the defective parts
and indirect damage are not covered by this warranty. For
making an appeal on warrantyyou can contact yoursupplier
directly, stating your complaint, application, dateof purchase
and part number / serial number.
1.5 Liability
Mastervolt accepts no liability for:
•consequential damage due to use of the Mass Sine
Ultra;
•possible errors in the manuals and the results thereof.
1.6 Changes to the Mass Sine Ultra
Changes tothe Mass Sine Ultra maybe carriedout only after
obtaining the written permission of Mastervolt. This is not
applicable for DIP-switches which are used foruser settings.
1.7 Identification label
Figure 1-1: Example of an identification label
The identification label is positioned at the right side of the
Mass Sine Ultra, see figure 1-1.
CAUTION!
Never remove the identification label.

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2 SAFETY GUIDELINES AND
WARNINGS
2.1 Warnings and symbols
Safety instructions and warnings are marked in this manual
and on the product by the following pictograms:
A procedure, circumstance, etc. which deserves
extra attention.
CAUTION!
Special information, commands and prohibitions
in order to prevent damage.
WARNING
A WARNING refers to possible injury to the user
or installer or significant material damage to the
Mass Sine Ultra if the installer / user does not
(carefully) follow the stated procedures.
Read this manual before installation and use.
This product has been declared conform the EC
directives and standards.
Degree of protection: IP23. The product is
protected against touch by fingers and water
spray < 60 degrees from vertical.
Safety class 1. This product must be provided
with an equipment grounding conductor to the
AC-output ground terminal.
2.2 Use for intended purpose
1 The Mass Sine Ultra is constructed as per the
applicable safety-technical guidelines.
2 Use the Mass Sine Ultra only:
•for the conversion of battery DC voltage to AC
voltage;
•with a fuse, protecting the wiring between Mass
Sine Ultra and battery;
•in a technically correct condition;
•in a closed, well-ventilated room, protected against
rain, moist, dust and condensation;
•observing the instructions in the user’s manual.
WARNING
Never use the Mass Sine Ultra in situations where
there is danger of gas or dust explosion or
potentially flammable products!
3 Use of the Mass Sine Ultra other than mentioned in
point 2 is considered to be inconsistent with the
intended purpose. Mastervolt does not hold itself liable
for any damage resulting from the above.
2.3 Organizational measures
The user must always:
•have access to the user’s manual;
•be familiar with the contents of this manual. This applies
in particular to chapter 2, Safety Guidelines and
Warnings.
2.4 Warning of special dangers
1 If the Mass Sine Ultra is switched off during
maintenance and/or repair activities, it should be
secured against unexpected and unintentional
switching on:
•remove the connection to the batteries
•be sure that others cannot reverse the measures
taken.
2 If maintenance and repairs are required, use only
original spare parts.
2.5 General safety and installation precautions
•Do not expose the Mass Sine Ultra to rain, snow, spray,
moisture, excessive pollution and condensing
circumstances. To reduce risk of fire hazard, do not
cover or obstruct the ventilation openings. Do not install
the Mass Sine Ultra in a non-ventilated area,overheating
results.
•The Mass Sine Ultra must be provided with an
equipment grounding conductor to the AC-output ground
terminal. Grounding and all other wiring must comply
with local rules and regulations.
•In case of fire, you must use a fire extinguisher which is
appropriate for electrical equipment.
•Short circuiting or reversing polarity will lead to serious
damage to batteries, Mass Sine Ultra and wiring. Fuses
between batteries and Mass Sine Ultra cannot prevent
damage caused by reversed polarityand warranty will be
void.
•Protect the DC wiring with a proper fuse, according to the
guidelines in this manual.
•Connection and protection must be done in accordance
with local standards.
•Do not work on the Mass Sine Ultra or system if it is still
connected toa power source. Only allowchanges in your
electrical system to be carried out by qualified
electricians.

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•Check the wiring and connections at least once a year.
Defects such as loose connections, burnt cables etc.
must be corrected immediately.
•Do not touch the equipment when wet or with clammy
hands.
•Not only the batteries, but the Mass Sine Ultra as well
can become a projectile if your transport is involved in an
accident! Ensure adequate and secure mounting and
always use suitable transportation handling equipment.
•Except for the connection compartment, see section 4.5,
the cabinet of the Mass Sine Ultra must not be opened.
There are no serviceable parts inside the cabinet. Only
qualified, authorized and trained electricians are
authorized to open the connection compartment.
2.6 Warning regarding life support applications
The Mass Sine Ultra products are not sold for applications
in any medical equipment intended for use as a component
of any life support system unless a specific written
agreement pertaining to such intended use is executed
between the manufacturer and Mastervolt. Such agreement
will require the equipment manufacturer either to contract
additional reliability testing of the Mass Sine Ultra parts
and/or to commit to undertake such testing as a part of the
manufacturing process. In addition the manufacturer must
agree to indemnify and not hold Mastervolt responsible for
any claims arising from using Mass Sine Ultra parts for life
support equipment.
2.7 Warning regarding the use of batteries
Excessive battery discharge and/or high charging voltages
can cause serious damage to batteries. Do not exceed the
recommended limits of your batteries. Avoid short circuiting
batteries, as this may result in explosion and fire hazard.
Installation of the batteries and adjustments of the Mass
Sine Ultra should only be undertaken by authorised
personnel!
2.8 Correct disposal of this product (waste electrical
& electronic equipment).
This product is designed and manufactured with high quality
materials and components, which can be recycled and
reused. When this crossed-out wheeled bin symbol is
attached to a product, it means the product is covered by the
European Directive 2012/19/EU.
Please be informed about the local separate collection
system for electrical and electronic products.
Please act according to your local rules and do not dispose
of your old products with your normal household waste. The
correct disposal of your old product will help prevent
potential negative consequences to the environment and
human health.

EN / Mass Sine Ultra
8
3 OPERATION
The Mass Sine Ultra is a fully automatic inverter. It converts
a DC voltage to a pure AC sine wave voltage. Under normal
circumstances there is no need for adjustment or operation
besides switching on and off.
3.1 General
The inverter provides voltage and frequency regulated AC
power froma batterybank. Fastacting electronic circuits and
fuses protect the inverter against extreme overloads, low
and high battery voltage and overheating of the inverter.
A large momentary surge power is available for starting up
electric motors. High efficiency ensures long battery usage
between recharges. A built in energy saving feature can
reduce battery power consumption when no loads are
connected to the inverter.
3.2 Energy saving mode (selectable)
The Mass Sine Ultra has a built-in automatic energy saving
feature that reduces battery power consumption when no
load is present on the outputs. Response from idle is instant.
In most cases the operation is not noticeable. The energy
saving mode can be set by means of MasterBus or
dipswitch, refer to chapter 6, Configuration.
The Mass Sine Ultra scans the AC output with pulses of 230
V every 2½ seconds. When it detects a load that is larger
than 50 W (adjustable), it switches On the inverter
automatically. Small loads such as clocks in VCR’s or micro
waves are most likely not to work in this mode.
Figure 3-3: Front panel
3.3 Front panel
See figure 3-3. The operation of the Mass Sine Ultra is
controlled by the main On/Off switch and displayed by
means of LED indicators at the front side of the housing. If
the Mass Sine Ultra is activated and as long as none of the
red indicators are illuminated, no failure is detected and the
unit is operating normally.
3.3.1 AC Output LED
See figure 3-3 item 1. The illuminated arrow indicates that
AC Output is powered.
3.3.2 Power bar LED’s
See figure 3-3 item 2. Every LED indicates 20% of nominal
inverter power. If the upper LED illuminates red, the inverter
is in overload. On: inverting, Off: not inverting.
3.3.3 Switching On and Off
See figure 3-3 item 3. The only control on the Mass Sine
Ultra itself is the main switch on the front of the unit. This
switch controls inverter On and Off. Switching the main
switch or an optional remote control panel to the “ON”
position activates the Mass Sine Ultra. After switching On,
expect a three till five second delay before the unit is
activated.
With the main switch in position “On“, the Mass Sine Ultra
inverter can also be switched Off and On via MasterBus.
Move the main switch or the optional remote controlpanel to
the “Off” position to switch off the Mass Sine Ultra.
3.3.4 Battery LED
See figure 3-3 item 4. This LED illuminates red when the
voltage of the connected battery is too high or low.
3.4 Protections
The Mass Sine Ultra is protected against overload, short
circuit, overheating and under and over voltage. You can
detect failures from the front panel by means of the
indicators or from one of the (optional) remote control
panels.
CAUTION!
The Mass Sine Ultra is not protected against
reversing polarity of the DC-input, AC voltage on
the DC-input and extreme over voltage (>300
VAC ) on the AC-output.
1AC Output LED,
section 3.3.1
2Power bar LED’s,
section 3.3.2
3Main switch On/Off,
section 3.3.3
4Battery LED, section
3.3.4

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9
3.4.1 Output overload or short circuit
In case of overload or short circuit, the Power bar top LED
illuminates red and the output voltage of the Mass Sine Ultra
is limited. The Mass Sine Ultra shuts down if this overload or
short circuit lasts over 5 seconds. The Mass Sine Ultra will
automatically restart after shutdown. After 5 failed start
attempts the Mass Sine Ultra shuts down permanently, the
Power bar top LED stays blinking red. You can restart the
Mass Sine Ultra only by switching the unit manually off and
on with the main switch on the Mass Sine Ultra after the
overload or short circuit is removed. Restart is also possible
via MasterBus and when DC supply was interrupted.
3.4.2 Overheating
The Mass Sine Ultra shutsdown in the eventof overheating.
Overheating is most likely caused by:
•heavy or non-resistive loads operating for a longer
period,
•high ambient temperature,
•disrupted air flow (dust or too little space).
The Mass Sine Ultra is powered upautomaticallyas soon as
the temperature drops below the factory default threshold.
3.4.3 Under and over voltage
The DC-input of the Mass Sine Ultra is protected against
over and under voltage. See specifications. The Mass Sine
Ultra switches off if the DC-input voltage is out of range.
3.4.4 Dynamic DC input window
Figure 3-4: Dynamic DC input window
The Mass Sine Ultra was designed to switch off depending
on both the battery voltage and current. The reason for this
is that low current loads cause a small voltage drop but they
are responsible for severe battery damage. By switching the
Mass Sine Ultra off at higher voltages with lower currents,
your batteries are saved.
Shown in figure 3.4 is the graph for a 24 V lead acid battery.
The horizontal axis shows the battery current. The graph
shows three lines:
(1) Low voltage switch on. Above this voltage the Mass
Sine Ultra switches On.
(2) Low voltage switch off with delay. Under this line the
Mass Sine Ultra switches Off after a delay. Note the 2%
point at which the line drops 1 Volt. From 2% till 100%
of nominal battery current it declines 2 Volts.
(3) Low voltage switch off without delay. Under this line the
Mass Sine Ultra switches off without delay.
3.5 Maintenance
Checking all connections every 6 months is required.
Further, no specific maintenance is required. If necessary,
use a soft clean cloth to clean the Mass Sine Ultra. Do not
use any liquids or corrosive substances, such as solvents,
alcohol, petrol or abrasive components.
24V
22V
17V
02% 100% 200%
21V
19V
1
2
3
U
% I
nom

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10
3.6 Daily use, MasterBus monitoring
The MasterBus Monitoring page offers the option to do your daily settings and it shows your settings from the Configuration page.
The table below shows the Mass Sine Ultra monitoring values. The values with a default value are adjustable.
Value
Meaning
Default
Range
Group-item
Index
General
Device state The state of your Mass Sine Ultra Standby; Inverting; Alarm;
Overload; Low battery
1-1 16
Inverter Option to switch Off the inverter to
prevent depleting of your batteries
On On, Off 1-3 20
Mode
User mode
Disabled; On; Error; Shutdown
1-4
60
Battery (DC)
Main battery
Battery voltage
0..32 V
2-2
6
Main battery Approximate battery current (minus
is discharging)
-500..0 A 2-3 7
AC output
AC output
AC output voltage
0..300 V
5-1
10
AC output
AC output current
0..70 A
5-2
11
AC output
AC output power
0..20000 W
5-3
98

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11
4 INSTALLATION
During installation and commissioning of the Mass Sine
Ultra, the Safety Guidelines and Warnings are applicable at
all times. See chapter 2 of this manual.
4.1 Unpacking
In addition to the Mass Sine Ultra the delivery includes:
•this user’s manual;
•MasterBus terminating device.
After unpacking, check the contents for possible damage.
Do not use the product if it is damaged. If in doubt, contact
your supplier.
Check from the identification label (see section 1.7) whether
your Main battery voltage is the same as the DC-input
voltage of the Mass Sine Ultra (e.g. 24 V main battery set for
a 24 V input voltage). Also check that the AC output voltage
and output power of the Mass Sine Ultra complies with your
system and loads.
4.2 Environment
Obey the following stipulations during installation:
•The Mass Sine Ultra is designed for indoor use only.
•Ambient temperature: -25˚C to 60˚C, (power derating
above 40˚C).
•Maximum usage/installation height: 2000 m.
•Humidity: 0-95% non-condensing.
•Mount the Mass Sine Ultra on a solid surface, with the
connecting cables downwards.
•Make sure that the hot air produced during operation can
be discharged. The Mass Sine Ultra must be mounted in
such a way that obstruction of the airflow through the
ventilation openings will be prevented.
•No objects must be located within a distance of 10 cm /
4 inch around the Mass Sine Ultra. Keep at least 15 cm
/ 6 inch free space below the Mass Sine Ultra.
•Do not locate the Mass Sine Ultra in the same
compartment as the batteries.
•Do not install the Mass Sine Ultra straight above the
batteries because of possible corrosive fumes.
4.3 Wiring
The wiring is connected inside the connection compartment.
If necessary, the wiring can be fed from the top to the bottom
side of the cabinet along the back of the cabinet.
Always feed the wiring through the strain reliefs of the
cabinet, and then connect the wiring to the terminals.
Connect the phase line wire to terminal L, the neutral wire to
terminal N and the ground wire to terminal PE, see figure 4-
3.
Figure 4-3: AC terminal connection
4.3.1 AC-wiring
For a safe installation the correct wire cross section must be
applied. Don’t use a cross section that is smaller than
indicated. See table below to select the appropriate cross
section for the AC wiring:
AC-Current
Minimum cross section:
0-20 Amp
2.5 mm²
AWG 13
20-32 Amp
4 mm²
AWG 11
32-48 Amp
6 mm²
AWG 9
48-80 Amp
10 mm²
AWG 7
Recommended wire colours (refer to local rules and fig 5-1)
Wire colour
Meaning
Connected to:
Brown or black
Phase
L1
Blue
Neutral
N
Green/Yellow
Earth
PE / GND

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12
4.3.2 DC wiring
Keep in mind that high current will pass through the DC
wiring. Keep the cable length as short as possible, this will
keep the system efficiency as high as possible. The table
shows recommended DC wire size:
Model
Minimum cross section:
24/4000
70 mm²
2/0 AWG
Use M8 cable lugs terminals on theends ofthe wires. These
lugs should be crimped with a proper crimping tool. Use the
following wire colours for DC wiring (refer to local rules):
Wire
colour
Meaning
Must be connected to:
Red
Positive
+ (POS)
Black
Negative
– (NEG)
Position the positive and negative cables next to each other
to limit the electromagnetic field around the cables. The
negative cable should be connected directly to the negative
post of the battery bank orthe groundside of a current shunt.
Do not use the chassis frame or hull of the ship as the
negative conductor. Tighten the Mass Sine Ultra
connections securely (15 - 20 Nm / 130 - 175 In-Lbs.). The
positive battery cable must be fused and connected to the
positive post of the batterybank. Fuse rating depends on the
applied cable cross section. The fuse with fuse holder is
available from your local Mastervolt distributor or Customer
Service Representative.
4.3.3 AC safety grounding
WARNING
The ground wire offers protection only if the
cabinet of the Mass Sine Ultrais connected to the
safety ground.
The ground stud is positioned at the left foot of the cabinet,
see the overview on page 2, position 7. Connect the earth
terminal (PE / GND) to the hullor the chassis with aminimum
10 mm².
CAUTION!
For safe installation it is necessary to:
•connect the neutral conductor (N) of the AC output
to the earth (PE / GND);
•insert a Residual Current Device (earth leakage
switch) of 30 mA in the AC output of the Mass Sine
Ultra.
Refer to local regulations on these issues!
4.4 Things you need
Make sure you have all the parts you need to install the Mass
Sine Ultra:
•Mass Sine Ultra (included);
•AC wiring. Double insulated three wire cable with wire
colours according to the locally applicable standards.
The applicable length and wire diameter depend on the
electrical installation. See section 4.3.1;
•DC-wiring to connect the DC connections of the Mass
Sine Ultra to the DC-distribution. See section 4.3.2;
•DC-fuse holder with a DC-fuse, to be integrated in the
positive DC-cable. For specifications see section 4.3.2;
•Screws / bolts (Ø 6 mm) (with plugs) to mount the cabinet
to a surface. Use mounting materials which are suitable
to carry the weight of the Mass Sine Ultra;
•Batteries. Refer to chapter 8 for specifications;
•Appropriate and reliable cable terminals, cable lugs,
battery terminals and cord end terminals.
We recommend as a minimum tool kit:
•Socket wrench 13 mm to fix the DC-input (battery)
cables;
•Flat blade screw driver 1.0 x 4.0 mm to fix the screw
terminals;
•Tools to fix the screws / bolts (Ø 6 mm) (with plugs) to
mount the cabinets to a surface;
•Philips screw driver to open the connection area of the
Mass Sine Ultra.
4.5 Removal of the front lid
Figure 4-5.1: Removal of the front lid
Steps:
1 Loosen the two screws that secure the front cover plate;
2 Lift the front cover plate from the cabinet. See figure
4-5.2.

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13
Figure 4-5.2: Front lid removed
WARNING
The front panel is never to be removed while the
Mass Sine Ultra is still connected to a power
source!
4.6 Mounting the cabinet to a surface
M6 bolts can be used for the mounting of the cabinet
vertically to a surface, like shown on the front page of this
manual and figure 4-6.
Take the following steps to mount the cabinet:
1 Determine the four mounting spots on basis of the
outline drawings. 150 mm of free space is required
below the Mass Sine Ultra for installation and DIP
switch operation;
2 Screw the topmost bolts somewhat into the wall;
3 Hang the cabinet with its key holes over the two bolts
and screw these bolts finger tight, so shifting is still
possible;
4 Place the two lowermost bolts;
5 Fasten all bolts securely;
6 Fix cabinet to the surface with remaining two bolts.
4.7 Wiring instructions
WARNING
Have installation work done by a licensed
electrician only. Before connecting the wiring,
make the AC distribution as well as the DC
distribution voltage free. Move the main switch to
the “Off”-position.
CAUTION!
Short circuiting or reversing polarity may lead to
serious damage to the batteries, the Mass Sine
Ultra, the wiring and/or the terminal connections.
Fuses between the batteries and the Mass Sine
Ultra cannot prevent damage caused by reversed
polarity. The damage as a result of reverse
polarity is not covered by the warranty.
CAUTION!
Too-thin cables and/or loose connections can
cause dangerous overheating of the cables
and/or terminals. Therefore tighten all
connections well. Only use cables of the correct
size.
Figure 4-6: Mount the Mass Sine Ultra upright to a solid
surface that is part of the construction

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14
4.8 Installation overview
Figure 4-8: Installation overview for one Mass Sine Ultra
CAUTION!
Ensure correct polarities, cross sections and fuses for all wiring. An RCD according to local regulations must be
connected to the output.

EN / Mass Sine Ultra
15
4.9 Setting up a MasterBus network
All devices that are suitable for MasterBus are
marked by the MasterBus symbol.
MasterBus is a fully decentralized data network for
communication between the different Mastervolt system
devices. It is CAN-bus based which has proven itself as a
reliable bus-system in automotive applications. MasterBus
is used as power management system for all connected
devices, such as theinverter, battery charger, generator and
many more. This enables communication between the
connected devices, for instance to start the generator when
the batteries are low. MasterBus reduces complexity of
electrical systems by using UTP patch cables. All system
components are simply chained together. Therefore each
device is equipped with two MasterBus data ports. As only a
few MasterBus cables are needed, installation and material
costs are reduced importantly.
New devices can be added to the existing network easily.
Consequently the MasterBus network is highly flexible for
extended system configuration. Mastervolt also offers
several interfaces like the Modbus interface, making even
non-MasterBus devices suitable to operate in the MasterBus
network. For central monitoring and control of the connected
devices Mastervolt offers different panels, like the full colour
MasterView System panel. All monitoring panels can be
used for monitoring, control and configuration of all
connected MasterBus equipment.
CAUTION!
Never connect a non-MasterBus device to the
MasterBus network directly! This will void
warranty of all MasterBus devices connected.
4.10 How to set up a MasterBus network
Every MasterBus device is equipped with two data ports.
When two or more devices are connected via these ports, a
local data network called the MasterBus is formed. Keep the
following rules in mind:
Place a terminating device on both network ends.
OK
Connections between the devices are made by
standard straight UTP patch cables.
OK
At least one device in the network must be MasterBus
powering (see specifications). As all powering devices
are galvanic isolated, multiple powering devices are
allowed.
OK
Do not make ring networks.
Do not make T-connections in the network.

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5 INSTALLATION OF MULTIPLE CLUSTERED MASS SINE ULTRA’S
This installation instruction serves as a guideline for the safe
and effective installation of the Mass Sine Ultra in a multiple
configuration, i.e.
•a parallel configuration, or
•a split phase configuration, or
•a three phase configuration, or
•a combination of a split phase or three phase in a parallel
configuration.
5.1 Purpose of a multiple configuration
There are several reasons for a multiple configuration of the
Mass Sine Ultra:
•If more output power is needed than one Mass Sine Ultra
can supply, two up to ten Mass Sine Ultra’s can be
connected in parallel;
•If redundancy is required, Mass Sine Ultra’s can be
connected in parallel to maintain reliable power supply if
one of the Mass Sine Ultra’s fails in operation;
•Three Mass Sine Ultra’s can be connected in a 3-phase
configuration to supply three phase AC power. By
connecting more Mass Sine Ultra’s in parallel as well,
virtually unlimited three phase power can be made
available.
5.2 General installation guidelines
When using Mass Sine Ultra’s in a multiple configuration, the
following requirements are:
•Only identical Mass Sine Ultra’s with the same article
numbers may be used in a multiple configuration;
•Maximum number of Mass Sine Ultra’s in parallel: 10;
•Maximum number of Mass Sine Ultra’s in a three phase
-parallel configuration: 3 x 3;
•Installation and commissioning of multiple Mass Sine
Ultra’s requires configuration of MasterBus settings and
programming of MasterBus events by means of a
MasterBus control panel or a PC (in combination with a
MasterBus USB-interface) with MasterAdjust software
installed. The installer must be familiar with MasterBus
configuration tools and the programming of such events;
•Allow sufficient ventilation to prevent build-up of hot air.
When installing multiple Mass Sine Ultra’s either side by
side or verticallyabove each other, at least 10 cm/ 4 inch
free space must be kept in between the units. If
necessary, adequate measures must be taken to avoid
one Mass Sine Ultra heating up the other.
Figure 5-3: Two Mass Sine Ultra’s connected in parallel

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5.3 Parallel configuration diagram
Figure 5-3 shows a basic installation diagram of two Mass
Sine Ultra’s in parallel. Both Mass Sine Ultra’s are supplying
AC to output-1 and the outputs are connected in parallel. All
corresponding cables must be the same length.
The connection compartment of two Mass Sine Ultra’s is
displayed, together with the communication module (figure
0-1, item 8 and 9).
5.4 Three phase configuration diagram
See figure 5-4. Three Mass Sine Ultra’s are shown in a three
phase configuration. Each Mass Sine Ultra is connected to
a phase, and so is delivering power to that phase. All
corresponding cables must be the same length.
The connection compartment of three Mass Sine Ultra’s is
displayed, together with the communication module. As you
see, the MasterBus network has a terminator on both ends.
Figure 5-4: Three Mass Sine Ultra’s connected in 3-phase
5.5 Multi Mass Sine Ultra communication
Within the MasterBus databus communication protocol,
Mass Sine Ultra’s connected in a parallel, split phase or a
three phase configuration shall be configured as a so called
“cluster”. After establishing such cluster, it can be operated
through MasterBus as one single single power conversion
unit.
Always connect the sync cables in cluster
connections!
5.6 Synchronization
Synchronization between theMass Sine Ultra’s is necessary
for parallel, split phase and 3-phase configurations. For a 3-
phase configuration, three Mass Sine Ultra (groups) are
connected to the phase cables with a 120 degree phase
angle between them. To accomplish this, the Mass Sine
Ultra’s must be able to communicate. This is done via the
sync cables. Each Mass Sine Ultra has two sync ports for
this.

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5.7 Configuration for multiple Mass Sine Ultra
systems
The MasterBus name for a multi Mass Sine Ultra system is
“Cluster“. A cluster can be a
•single phase,
•split phase or
•3-phase
configuration, with one or more Mass Sine Ultra’s in parallel
connection per phase.
5.8 MasterBus configuration for clusters
The table below shows the MasterBus configuration
variables and their meaning.
Value
Meaning
Default
Range
Cluster
Phase System
Configuration of your energy system.
Single phase
Single phase,
Split phase,
Three phase
Dev. per phase
Number of Mass Sine Ultra’s in parallel connection per phase.
1
1…10
Select devices
Button to enable selection of the other Mass Sine Ultra’s in the
cluster. It opens the Phase groups to select the Mass Sine Ultra
connected via MasterBus. If you wish to return to less Mass Sine
Ultra’s per phase, change the Dev. per phase value and press
Select devices again.
Mass Sine
Ultra’s
connected
Maximum 27
Mass Sine Ultra’s
Cluster topology
State of the topology proposed. If not enough Mass Sine Ultra’s
are available for the cluster, the topology “needs approval“.
Needs
approval
Needs approval,
approved
Phase L1, L2, L3
(shows in 3-ph
cluster only)
Phase groups with scrollbars for selecting multiple Mass Sine
Ultra’s per phase. After cluster activation the phase master and
slaves are shown.
Activate cluser
Button to set the cluster to active.
Cluster state
Indicates the cluster configuration state.
Inactive
Inactive, double
devices, active
5.9 MasterBus monitoring for a three phase cluster
In the monitoring tab, first the data for the single Mass Sine
Ultra itself is shown in the groups General and Battery (DC).
Next are the Cluster groups (Cluster L1, etc.). Per phase
they show the following data respectively.
Value
Variable
Meaning
Cluster L1 out
AC output 1
V
A
W
AC output 1 voltage
AC output 1 current
AC output 1 power
For a three phase system the monitoring page tabs shows
the following;.
Cluster L1 out shows the values for the first phase output. If
more Mass Sine Ultra’s are clustered per phase, their values
are combined. Cluster L2 and L3 are displayed the same
way as Cluster L1. The tab with AC outputs shows the
values for the Mass Sine Ultra you are looking at.

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5.10 MasterBus specific alarms for multi Mass Sine
Ultra systems
Value
Meaning
Sync error
Synchronization error. The Mass Sine Ultra
switched to standby, there is no output.
Config error
Configuration error. This alarm is triggered
when more Mass Sine Ultra’s are needed for
a cluster than available in the system.
Install error
Error in the system installation, for instance
an expected slave is not in the Sync
network.
If one Mass Sine Ultra is in alarm, it switches Off together
with the other Mass Sine Ultra’s in the same cluster. This
applies for parallel, split phase and 3-phase configurations.
5.11 DIP switch settings for two Mass Sine Ultra’s in
parallel
The DIP switches have a combined function for parallel
settings of two Mass Sine Ultra’s. See table below and
section 6.1. MasterBus configuration is necessary for more
Mass Sine Ultra’s in a parallel connection.
By operating the DIP switches you will lose all
previous cluster configuration!
DIP switch #
Meaning
1
2
Parallel connection
0
0
Mass Sine Ultra as stand-alone device
1
0
Mass Sine Ultra as Master device
0
1
Mass Sine Ultra as Slave device
5.12 Operation of multiple Mass Sine Ultra systems
If connected in a more phase or parallel configuration, it is
important which Mass Sine Ultra you selected as the master
and which as the slave(s). Operation is done via the main
switch on the master. The slave Mass Sine Ultra’s must be
switched On already but theyfollow the master. If themaster
is switched On or Off, the slaves follow. If there is more than
one master, for instance in a three phase by two parallel
configuration (3X2), operation is done on the L1 master.

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6 CONFIGURATION
The Mass Sine Ultra is provided with a group of DIP-
switches to adjust the Mass Sine Ultra according to the
specifications of the electrical installation, see figure 6-1.
DIP-switch settings are 0 for default values. The Mass Sine
Ultra also features the more sophisticated MasterBus
configuration.
Previously done MasterBus settings are overruled by the
DIP-switch settings and they are greyed out in the menu.
When a DIP-switch is set to 0, the corresponding MasterBus
setting becomes default too, regardless the previous setting.
6.1 Configuration via dip-switches
The DIP-switches are located in the connection
compartment. Figure 6-1 shows the location of the DIP-
switches and the print on the inside of the front cover plate.
Figure 6-1: DIP-switches and cover print
DIP
switch
Function
A1-A2
Parallel mode
0-0: Stand alone
1-0: Master 0
0-1: Slave
1-1: NA
A3
Output frequency inverter
0: 50 Hz
1: 60 Hz
A4
Energy saving mode
0: off
1: on (scan mode)
A5-A6
N.A.
A7-A8 Main battery type 0-0: Flooded 1-0: Gel 0-1: AGM 1-1: Flooded
traction