Mastervolt Sunmaster XS4300 Operating manual

USER’S AND INSTALLATION MANUAL / GEBRUIKERS- EN INSTALLATIEHANDLEIDING
BEDIENUNGS- UND INSTALLATIONSANLEITUNG / MANUEL UTILISATEURS ET D’INSTALLATION
MANUAL DEL USUARIO Y DE INSTALACIÓN / MANUALE DI USO E MANUTENZIONE
Sunmaster
XS4300/ XS3200/ XS2000
Grid connected solar inverter
MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: [phone]
Fax.: [phone]
www.mastervolt.com Copyright © 2008 Mastervolt, v1.1 November 2008
ENGLISH: PAGE 1
NEDERLANDS: PAGINA 29
DEUTSCH: SEITE 53
FRANÇAIS: PAGINA 77
CASTELLANO: PÁGINA 101
ITALIANO: PÁGINA 125

OVERVIEW / CONTENTS
2November 2008 / Sunmaster XS4300-3200-2000 / EN
OVERVIEW
CONTENTS: v 1.1 November 2008
1GENERAL INFORMATION.............................................................................................................................................. 4
1.1 Product description............................................................................................................................................. 4
1.2 Use of this manual.............................................................................................................................................. 4
1.3 Validity of this manual ........................................................................................................................................ 4
1.4 Guarantee specifications.................................................................................................................................... 4
1.5 Liability ............................................................................................................................................................... 4
1.6 Changes to the Sunmaster................................................................................................................................. 4
1.7 Identification label............................................................................................................................................... 4
Internal DC-switch
(optional)
Bottom plate
(connection compartment) Identification label
Cable glands
LCD display
Key S1: Menu
Key S3: Info
Key S2: Source
Key S4: Select
Error LED
Figure 1: overview of the Mastervolt Sunmaster XS 4300/ 3200/2000.
Wire seal facility
Solar input
2 strings parallel

CONTENTS
EN / Sunmaster XS4300-3200-2000 / November 2008 3
2SAFETY GUIDELINES AND WARNINGS....................................................................................................................... 5
2.1 Warnings and symbols ....................................................................................................................................... 5
2.2 Use for intended purpose ................................................................................................................................... 5
2.3 Organisational measures ................................................................................................................................... 5
2.4 Installation, maintenance and repair................................................................................................................... 5
2.5 Warning of special dangers................................................................................................................................ 5
3BEFORE YOU START..................................................................................................................................................... 6
3.1 Unpacking .......................................................................................................................................................... 6
3.2 Country selection................................................................................................................................................ 6
3.3 Installation environment ..................................................................................................................................... 6
3.4 AC Wiring ........................................................................................................................................................... 8
3.5 Grounding........................................................................................................................................................... 8
3.6 Specifications of the Solar system...................................................................................................................... 8
3.7 DC Switch........................................................................................................................................................... 8
3.8 PV modules and strings ..................................................................................................................................... 8
3.8.1 Connection of two strings (standard)................................................................................................. 9
3.8.2 Connection of more than two strings (option) ....................................................................................9
3.9 General safety and installation precautions...................................................................................................... 10
3.10 Things you need for installation........................................................................................................................ 10
4INSTALLATION ............................................................................................................................................................. 11
4.1 Installation step by step.................................................................................................................................... 11
4.2 Use in Italy........................................................................................................................................................ 12
4.3 Commissioning after installation....................................................................................................................... 12
4.3.1 Switching on .................................................................................................................................... 12
4.3.2 Country code selection .................................................................................................................... 13
4.4 De-commissioning............................................................................................................................................ 13
5OPERATION .................................................................................................................................................................. 14
5.1 General ............................................................................................................................................................ 14
5.2 Forced Cooling ................................................................................................................................................. 14
5.3 LCD-display...................................................................................................................................................... 14
5.3.1 Actual readings................................................................................................................................ 15
5.3.2 Historical data.................................................................................................................................. 16
5.3.3 Total energy revenues..................................................................................................................... 16
5.3.4 System information.......................................................................................................................... 17
5.3.5 Failures............................................................................................................................................ 17
5.4 Maintenance..................................................................................................................................................... 17
6TROUBLE SHOOTING.................................................................................................................................................. 18
7SPECIFICATIONS ......................................................................................................................................................... 19
7.1 Technical specifications ................................................................................................................................... 19
7.2 Outline drawings............................................................................................................................................... 21
8ORDERING INFORMATION.......................................................................................................................................... 22
9ITALY SELF TEST......................................................................................................................................................... 23
10 CERTIFICATES ............................................................................................................................................................. 26
10.1 Certificate of VDE-0126 conformity .................................................................................................................. 26
10.2 EC declaration of conformity ............................................................................................................................ 27

GENERAL INFORMATION
4November 2008 / Sunmaster XS4300-3200-2000 / EN
1 GENERAL INFORMATION
1.1 PRODUCT DESCRIPTION
Congratulations for choosing the Mastervolt Sunmaster
XS4300, the Sunmaster XS3200 or the Sunmaster
XS2000, further referred to as “Sunmaster”. The
Sunmaster is a grid connected solar inverter, used for the
feed back into the utility grid of power generated by
photovoltaic modules.
Depending on the application and in order to meet the
local applicable regulations, the Sunmaster can be
ordered in several models. See chapter 3.2 for an
overview of the available models.
The Sunmaster is not suitable for stand-alone use (i.e. use
without public grid).
1.2 USE OF THIS MANUAL
Copyright © 2008 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
installation of the Sunmaster:
•For the electrician 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 of the Sunmaster.
•Every person who works with the apparatus should be
familiar with the contents of this manual, and must
carefully follow the instructions contained herein.
•Store the manual in a user accessible place.
This English manual has 28 pages.
1.3 VALIDITY OF THIS MANUAL
All the specifications, provisions and instructions contained
in this manual apply solely to the Mastervolt-delivered
standard versions of the Sunmaster (Refer to chapter 3.2).
1.4 GUARANTEE SPECIFICATIONS
Mastervolt assures the product guarantee of the
Sunmaster during five years after your 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
Sunmaster 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 or shipping of the defective parts are not
covered by this warranty.
For making an appeal on warranty you can directly contact
your supplier, stating your complaint, application, date of
purchase and part number / serial number
1.5 LIABILITY
Mastervolt accepts no liability for:
•consequential damage due to use of the Sunmaster;
•possible errors in the manuals and the results thereof.
1.6 CHANGES TO THE SUNMASTER
Changes on the Sunmaster may be carried out only after
the written permission of Mastervolt
1.7 IDENTIFICATION LABEL
See figure 2 for location. Important technical information
required for service, maintenance & secondary delivery of
parts can be derived from the identification label.
CAUTION!
Never remove the identification label.
Figure 2
Identification label

SAFETY GUIDELINES AND MEASURES
EN / Sunmaster XS4300-3200-2000 / November 2008 5
2 SAFETY GUIDELINES AND WARNINGS
2.1 WARNINGS AND SYMBOLS
Safety instructions and warnings are marked in this
manual 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 Sunmaster if the installer / user does
not (carefully) follow the stated procedures.
2.2 USE FOR INTENDED PURPOSE
The Sunmaster is constructed as per the applicable
safety-technical guidelines. Use the Sunmaster only in
installations that meet the following qualifications:
•in permanent installations;
•connected to a separate, grounded AC group, to which
no other electrical equipment is connected;
•the electrical installation must meet the applicable
regulations and standards, must be carried out
correctly and must be in a good condition.
•according to the technical specifications as stated in
chapter 7.1.
WARNING
Never use the Sunmaster in situations where
there is danger of gas or dust explosion or
potentially flammable products!
Use of the Sunmaster other than as mentioned under §
2.2 is not considered to be consistent with the intended
purpose. Mastervolt is not liable for any damage resulting
from the above.
2.3 ORGANISATIONAL MEASURES
The installer / user must always:
•have access to this manual;
•be familiar with the contents of this manual. This
applies particularly to Chapter 2, Safety Guidelines &
Warning.
2.4 INSTALLATION, MAINTENANCE AND
REPAIR
As lethal voltages exist, allow installation, maintenance
and repair of the Sunmaster and changes in your electrical
system to be carried out by qualified electricians only.
Connections and safety features must be executed
according to the locally applicable regulations.
In case of decommissioning and/or demounting follow the
instructions as stated in chapter 4.4.
If such are required, use only original spare parts.
2.5 WARNING OF SPECIAL DANGERS
•Not only AC-grid voltage, but DC voltages up to 600V
may exist in the Sunmaster as well
•The voltages present at the grid and solar side of the
Sunmaster are not safe to touch and cannot be
switched off at the solar side. Depending on local
applicable regulations the use of an internal or external
DC switch may be obligatory.
•Do not work on the Sunmaster and/or the electrical
installation if it is still connected to the solar panels
and/or AC-grid.
•Only allow changes in your electrical system to be
carried out by qualified electricians

BEFORE YOU START
6November 2008 / Sunmaster XS4300-3200-2000 / EN
3 BEFORE YOU START
3.1 UNPACKING
In addition to the Sunmaster the delivery includes:
•A mounting bracket to mount the Sunmaster to a wall
•This user’s and installation manual.
After unpacking, check the contents for possible damage.
Do not use the product if it is damaged. If in doubt, contact
your supplier.
3.2 COUNTRY SELECTION
The Sunmaster is equipped with an anti-islanding device
that ensures the switch off in case of grid failure. European
countries maintain different regulations with regard to the
grid interface of solar inverters. The common islanding
device is the QNS, which switches off the inverter if the
grid voltage or frequency is out of range. In some
countries like Germany the ENS device (VDE-V-0126-1-1
compliant) is compulsory.
Because of these different regulations the Sunmaster must
be configured at first installation. See section 4.3.2.
Furthermore the Sunmaster can be supplied with or
without internal DC switch which is used to disconnect the
photovoltaic modules from the inverter, as required in
buildings by the international standard IEC60364-7-712.
Check from the part number on the type number plate
whether the Sunmaster is appropriate to be used for the
intended application (refer to table 1).
Part number Description DC switch
131004300 XS4300 IP44 ENS No
131014300 XS4300 IP44 ENS SW Yes
131003200 XS3200 IP44 ENS No
131013200 XS3200 IP44 ENS SW Yes
131002000 XS2000 IP44 ENS No
131012000 XS2000 IP44 ENS SW Yes
Table 1
WARNING
Never use the Sunmaster for a non-intended
application!
3.3 INSTALLATION ENVIRONMENT
The Sunmaster can be mounted in the AC distribution
cabinet or in the vicinity of the solar panels. Obey the
following stipulations during installation:
•The Sunmaster is designed for both indoor and
outdoor use, according to safety class IP44. Among
others this means that the Sunmaster should not be
exposed to direct weather conditions such as rain or
snow. Therefore the Sunmaster should at least be
installed under a canopy roof for protection against
rain.
•Do not install the Sunmaster in dusty environments.
•Ambient temperature: -20 ... 60°C; (power derating
above 45°C).
•No objects must be located within a distance of 10 cm
around the Sunmaster (figure 3).
•Make sure that the hot air that is generated during
operation will be discharged by forced ventilation when
installing the Sunmaster in a closed section.
•Keep at least 50 cm in between the inverters when
several Sunmasters are installed next to each other
(figure 5). If this is not possible, adequate measures
must be taken to avoid one inverter heating up the
other (figure 4).
•If the Sunmaster is installed in the immediate vicinity of
living areas, take into account that the Sunmaster can
produce a slight noise level when operating (refer to
section 7.1).
•Mount the Sunmaster vertically on a solid wall.
•Readability of the display is optimal when looking at
the display from an equal or lower position.

BEFORE YOU START
EN / Sunmaster XS4300-3200-2000 / November 2008 7
Figure 4
Minimum 50 cm
OK
10 cm
10 cm
10 cm
10 cm
OK
Figure 5
Figure 3

BEFORE YOU START
8November 2008 / Sunmaster XS4300-3200-2000 / EN
3.4 AC WIRING
The Sunmaster may only be used in a in a permanent
installation, connected to a separate AC distribution group,
to which no other electrical equipment is connected.
The cabling between the junction box or electric cable duct
and the Sunmaster must be double insulated. Use an
appropriate AC-wire diameter, so that the single wire
resistance between the Sunmaster and the AC distribution
will not exceed 0.25 Ohm. Directive: up to 25 meters
length, choose a wire diameter of 3 x 4mm². Choose a
larger wire size for lengths above 25 meter.
3.5 GROUNDING
The Sunmaster must be provided with an equipment-
grounding conductor to the AC-output ground terminal.
Grounding and all other wiring must comply with local
codes and ordinances.
Grounding of the solar array is not necessary thanks to the
galvanic isolation between the DC-input and the AC output
of the Sunmaster.
3.6 SPECIFICATIONS OF THE SOLAR SYSTEM
The solar system should meet the following specifications:
•Maximum open circuit string voltage at lowest possible
temperature of the PV modules and maximum PV
power connected to the inverter:
Model Sunmaster Max voltage Max power
XS4300 550Vdc max 4600Wp
XS3200 600Vdc max 3500Wp
XS2000 450Vdc max 2100Wp
•Double insulated PV-wiring
•All cables of the string should have double insulation
and must be fitted with pre-assembled MultiContact
connectors (Ø4mm)
•If two or more strings are connected to the same
Sunmaster, both string lengths must be equal.
.
CAUTION!
Do not install the Sunmaster if the solar-
system does not comply with the above
mentioned stipulations.
3.7 DC SWITCH
Depending on local applicable regulations the use of a DC
switch between the PV modules and the inverter may be
mandatory.
For example international standard IEC60364-7-712
prescribes a DC switch in solar electric installations in
buildings. For this reason Mastervolt offers several models
of the Sunmaster with integrated DC-switch. See chapter
3.2 to check if your Sunmaster is equipped with such a
DC-switch.
If your Sunmaster is not equipped with a DC-switch, an
external DC-Switch can be applied. Single and double
output types are available rated 600 Volts and 25A. See
chapter 8 for ordering information.
3.8 PV MODULES AND STRINGS
The solar or DC side of the system consists of several
photovoltaic (solar) modules, further mentioned as “PV
modules”. The PV-modules are connected in series to
form a so called “string”. These strings consist of a plus (+)
and a minus (–) connection which can be connected
directly to the Sunmaster.
The string voltage should be equal to the open circuit
voltage (Voc) per PV module (refer to the specifications of
the PV-module), multiplied by the number of PV-modules
in each string. Depending on the solar irradiation and
temperature, this value should be equal to 70-95% of the
calculated string voltage.
The Sunmaster is equipped with a single MPP tracker and
two parallel string connections, see figure 6.
AC grid
Figure 6
DC
AC
1 2

BEFORE YOU START
EN / Sunmaster XS4300-3200-2000 / November 2008 9
3.8.1 Connection of two strings (standard)
Two strings can be connected to the Sunmaster directly.
See section 3.6 for the maximum power connected to
each Solar-input. The total input power must be distributed
equally over both Solar-inputs as much as possible.
See figure 7.
3.8.2 Connection of more than two strings
(option)
In case more than two strings should be connected to the
Sunmaster, Multicontact Y-adapters may be used to
combine the strings (see figure 8 and ordering information
chapter 8). The strings connected to the same Solar-input
should exist of an equal number of identical PV-modules.
See figure 9.
Figure 8: Y-adapter
String 1 + 2 String 3 + 4
AC grid
MultiContact
Y-adapters
Figure 9
String 1
AC grid
String 2
Figure 7
DC
AC

BEFORE YOU START
10 November 2008 / Sunmaster XS4300-3200-2000 / EN
3.9 GENERAL SAFETY AND INSTALLATION
PRECAUTIONS
WARNING
Be sure that all wiring is disconnected from
any power source during the entire
installation.
CAUTION!
•Short circuiting or reversing polarity may
lead to damage to the Sunmaster, the
cabling and/or the terminal connections.
•Follow all steps of the installation
instructions in order of succession as
described.
•The DC switch, if installed, must stay in
the OFF-position during the entire
installation.
3.10 THINGS YOU NEED FOR INSTALLATION
Make sure you have all the parts you need to install the
Sunmaster:
•The Sunmaster + mounting bracket (included).
•Four screws (with plugs) to mount the Sunmaster.
Maximum diameter: 5 mm. Use mounting materials
which are suitable to carry the weight of the Sunmaster
•Phillips screwdriver nr. 2 to open the connection
compartment of the Sunmaster.
•Flat blade screw driver.
•Masterbus communication cables.
•RS485 communication cables.

INSTALLATION
EN / Sunmaster XS4300-3200-2000 / November 2008 11
4 INSTALLATION
4.1 INSTALLATION STEP BY STEP
CAUTION!
Read chapters 2 and 3 prior to installation.
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
5 Insert a flat blade screw driver in the
indicated slots (b). Then remove the bottom
plate of the Sunmaster.
b
6 Feed the AC wiring through the left hand
cable glad of the bottom plate and connect
the wiring to the screw terminals.
4 Loosen the two Phillips screws (a) at the
bottom side of the cabinet.
a
3 Place the Sunmaster over the mounting
bracket and then move it downwards until it
is locked by the mounting bracket.
2 Fix the mounting bracket to the wall.
1 Mark the position of the four mounting spots
by using the mounting bracket.

INSTALLATION
12 November 2008 / Sunmaster XS4300-3200-2000 / EN
Figure 16
Figure 17
Figure 18
4.2 USE IN ITALY
In Italy ENEL may require sealing parts of the
AC wiring.
All Sunmasters are equipped with a wire seal facility.
Figure 2 shows where this is located. A detailed view is
shown in figure 19.
Figure 19: Detailed view of wire seal facility
4.3 COMMISSIONING AFTER INSTALLATION
To check the correct operation of the
Sunmaster, commissioning should be carried
out during daytime only
4.3.1 Switching on
Follow the steps described below to switch on the
Sunmaster:
1 Check whether the DC-switch of the solar array is still
in the OFF position (or “O”-position).
2 Switch on the AC grid.
3 Move the DC-switch of the solar array to the ON
position (or “I”-position).
If connection has been made correctly and solar irradiation
is sufficient, the Sunmaster will switch on automatically.
This may take a few seconds.
4 At first commissioning the country code must be
selected. See section 4.3.2.
SOLAR 1 SOLAR 2
9 Make sure the DC-Switch is in the OFF
position. Then connect the string cabling to
the Sunmaster.
Input 1 Input 2
8 Close the connection compartment; Steps:
1 Tighten the two Phillips screws (a).
2 Tighten the cable glands (b).
a
b
7 Connect the MasterBus cables to the
MasterBus connectors and the QS-Databus
wiring to the RJ-45 connectors for monitoring
(option).
RS485 RS485
RS485
RS485
RS485
terminator
terminator

INSTALLATION
EN / Sunmaster XS4300-3200-2000 / November 2008 13
4.3.2 Country code selection
Follow the steps below to configure the Sunmaster in
accordance with the local regulations for grid connection
(example: Italy).
CAUTION!
NEVER connect the Sunmaster to a utility grid
other than selected.
1 After commissioning the following message is
displayed.
2 Select the applicable country code from the table
below.
Country code Norm Use Allowed in
GERMANY 1P,
limited to 4.600 W
ENS Germany, Austria, Belgium
GERMANY 3P ENS Germany, Austria, Belgium
SPAIN QNS Spain
ITALY ENS Italy
UK QNS United Kingdom
FRANCE ENS France
AUSTRALIA QNS Australia
GREECE QNS Greece
HOLLAND QNS Netherlands, rest of
Europe
USA 240V QNS USA
(Split Phase 240V)
USA 208V QNS USA
(ThreePhase 208V)
KOREA QNS South Korea
TAIWAN QNS Taiwan
3 Press S4 to scroll through the country codes.
4 If the correct country code is shown, press S2 to
select
5 Confirm your selection by pressing S3 (or cancel by
pressing S4).
If a wrong country code was entered, you can
start the procedure over again by pressing S2
and S4 simultaneously during 3 seconds.
6 Now the Sunmaster switches on. See chapter 0 for
operation instructions.
4.4 DE-COMMISSIONING
If it is necessary to de-commission the Sunmaster, follow
the instructions in order of succession as described below:
CAUTION!
Follow below mentioned instructions in order
of succession as described.
1 Cut off the grid voltage by switching off AC distribution
switch in the meter cupboard.
2 If such is applied, move the DC switch to the OFF-
position.
3 Disconnect the MultiContact connectors from the
Sunmaster.
4 Remove the bottom plate of the Sunmaster and
disconnect the AC wiring.
Now the Sunmaster can be demounted in a safe way.
Press S4 to cancel
the selection
S1 S2
S3 S4
Press S3 to confirm
the selection
Press S2 to select the
displayed country code
Press S4 to scroll through
the country codes
S1 S2
S3 S4
Press S4 to scroll through
the country codes
S1 S2
S3 S4

OPERATION
14 November 2008 / Sunmaster XS4300-3200-2000 / EN
5 OPERATION
5.1 GENERAL
After installation and commissioning the Sunmaster will
switch on automatically if solar irradiation is sufficient. The
Sunmaster operates automatically: there is no need for
user action. If the irradiation of the PV-modules is
insufficient, for instance at night, the Sunmaster switches
off automatically. When switched off, the display does not
show any information.
The Sunmaster has no ON/OFF switch; In the event of
decommissioning, refer to section 4.4.
CAUTION!
Never disconnect the MultiContact plugs
during operation of the Sunmaster.
Not complying with this instruction may cause
a spark or an electric arc. Should an arc
develop, both plug and socket of the
Sunmaster must be replaced.
5.2 FORCED COOLING
For an optimum internal temperature control the
Sunmaster is provided with a cooling fan. The cooling fan
starts running slowly at inverter start up. As internal
temperature rises, the cooling fan will increase its speed.
This is a normal effect which has a positive contribution to
the efficiency and lifetime of the Sunmaster.
5.3 LCD-DISPLAY
The Sunmaster is standard provided with an integrated
LCD-display at the front side of the cabinet (figure 23).
This display makes it possible to monitor the performance
of your PV-system. It shows the following information:
•Daily energy revenues over the past 30 days
•Actual Solar power, voltage and current.
•Actual AC power, voltage, current and frequency.
•Actual inverter temperature, total energy revenue, total
working hours.
•Inverter status and diagnostics.
The LCD screen is operated by means of four keys: S1,
S2, S3 and S4. See figure 23.
Figure 23: operation of the LCD-display
S2: Source
S4: Select
S1: Menu
Error LED
S3: Info
LCD Display

OPERATION
EN / Sunmaster XS4300-3200-2000 / November 2008 15
See figure 24. This screen is shown after start-up. Also if
no key was touched for 60 seconds, the display returns to
this screen. It shows:
•Actual solar power by means of a 0-100% bar
•Energy generated today.
Figure 24: initial screen (displayed values may differ)
By pressing S1: Menu you can toggle between:
►ACTUAL Read out of measurements at this
moment; see chapter 5.3.1
►DAY Showing the historical data of today and
1…30 days ago; see chapter 5.3.2
►TOTAL This shows the total energy revenue at the
Solar input and the AC-output; see chapter
5.3.3.
►SYSTEM Used to display system information about
the Sunmaster; see chapter 5.3.4.
5.3.1 Actual readings
When [►ACTUAL] is highlighted at the LCD-display,
actual readings of the Sunmaster are shown (figure 25).
By pressing S2: Source you can toggle between:
SOLAR 1 ◄Data measured at DC-input “SOLAR1”
AC GRID ◄Data measured at the AC-output of the
Sunmaster
Figure 25: Actual readings
Press S4: Select to navigate through the actual data. The
table below explains the meaning of the displayed data:
Selected source =
AC GRID
Selected source =
SOLAR1
W Power supplied to the
AC grid
Solar power supplied to
the Sunmaster by the
PV-strings
V AC grid voltage DC Voltage from the
PV-string
A AC current supplied to
the AC grid
DC current from the
PV-string
Hz AC grid frequency n/a
ΩAC grid impedance* n/a
°C Internal temperature of
the inverter
Internal temperature of
the inverter
kWh Energy generated today n/a
* ENS-models only (see chapter 3.2), else 0.00 is shown.
Actual readings are shown
Press S2: Source to toggle between
SOLAR 1
AC GRID
S1 S2
S3 S4
Press S4: Select to toggle between
[W], [V], [A], [Hz], [Ω], [°C] and [kWh]
actual solar power
(approx. 70% of nominal power)
Today’s energy so far
Example: 19.52 kWh
actual values are shown
Data of the AC grid is shown
S1 S2
S3 S4

OPERATION
16 November 2008 / Sunmaster XS4300-3200-2000 / EN
5.3.2 Historical data
When [►DAY] is highlighted at the left upper corner of the
LCD-display, the daily performance of your Sunmaster
during the last 30 days is shown. See figure 26.
Press S4: Select to switch between [kWh] and [h]:
kWh Here the total energy yield of the selected day is
shown.
h This value indicates the operating hours of the
selected day
Figure 26: Historical data
Operation of S3: Info:
Press shortly One day back in the past.
Press and hold Scrolling days forward.
Examples:
5.3.3 Total energy revenues
When [►TOTAL] is highlighted at the upper side of the
LCD-display, the total performance since commissioning
of the Sunmaster is displayed. See figure 27.
By pressing S2: Source you can toggle between:
SOLAR 1 ◄Total performance of DC-input “SOLAR1”
is displayed
AC GRID ◄Total performance at the AC-output of the
Sunmaster is displayed
Figure 27: Total energy revenue
Press S4: Select to switch between [kWh] and [h]:
kWh Here the total energy yield of the selected source is
displayed.
h This value represents the total operating hours of
the selected input.
Shows today’s data
Shows yesterday’s data
Shows data from one week ago
Total energy revenues are shown
Press S2: Source to toggle between
SOLAR 1
AC GRID
S1 S2
S3 S4
Press S4: Select to switch between [kWh]
and [h]
Historical data is shown
S1 S2
S3 S4
Press S3: Info to select a day in the past
Press S4: Select to switch between
[kWh] and [h]

OPERATION
EN / Sunmaster XS4300-3200-2000 / November 2008 17
5.3.4 System information
When [►SYSTEM] is highlighted at the upper side of the
LCD-display, several system information of the Sunmaster
can be is displayed. See figure 28.
If you press and hold for 3 seconds S2: Source you can
toggle the Sleep mode on / off:
SLEEP Sleep mode is on: the back light of the display
will go off when no key was touched for 60
seconds.
SLEEP Sleep mode is off: the back light of the display
will stay illuminated.
Figure 28: System information
Press S3: Info to switch between [Model], [Serial], [Firmw]
and [Error]:
►MODEL Shows the model of the Sunmaster i.e.
“XS4300”, “XS3200” or “XS2000”.
►SERIAL Serial number is displayed. Example:
RN07A003.
►FIRMW Display switches between the firmware of
the inverter (“XS”) and the display (“DS”).
►ERROR In case of a system failure, the cause of the
failure is displayed. See section 5.3.5.
5.3.5 Failures
As long as the ERROR LED isn’t illuminated,
no failure is detected: the Sunmaster is
operating normally!
If the irradiation of the PV-modules is
insufficient, for instance at night, the
Sunmaster switches off automatically and the
display does not show any information. This is
a normal situation!
Figure 29: representation of a failure
The operation of the Sunmaster is controlled and checked
by a microprocessor. If an error occurs, it is detected by
the apparatus itself: the red ERROR LED illuminates or
blinks. The cause of error is displayed by means of an
error code. See figure 29. Refer to chapter 6 for
explanation of the error codes.
5.4 MAINTENANCE
No specific maintenance to the Sunmaster is required.
Examine your electrical installation on a regular base, at
least once a year. Defects such as loose connections,
burnt wiring etc. must be corrected immediately.
If necessary, use a soft clean cloth to clean cabinet of the
Sunmaster. Never use any liquids, acids and/or scourers.
Error LED illuminates or blinks
S1 S2
S3 S4
An error code is displayed here
System information is shown
Press and hold for 3 seconds S2: Source to
toggle the Sleep mode on / off
S1 S2
S3 S4
Press S3: Info to switch between [Model],
[Serial], [Firmw] and [Error]

TROUBLE SHOOTING
18 November 2008 / Sunmaster XS4300-3200-2000 / EN
6 TROUBLE SHOOTING
Consult an installer, if you cannot solve the problem by means of the table below.
Error LED Error Code Meaning What to do?
Off NONE No error Nothing; the inverter is working normally
Off Insufficient irradiation Nothing. Irradiation of the PV modules is insufficient (for
instance during night time)
Off No power from the PV
modules
Consult an installer if the display does not show any
information during daytime. The wiring between the PV
modules and the Sunmaster might be defective.
Off WAIT 0:00 Start-up Nothing. After the Sunmaster was (re)connected to the AC
grid, it checks the quality of the AC grid before it starts
operating normally. This may take up to 5 minutes.
Off SOL1 LOW Voltage of the Solar
input is low
Nothing; normal condition during sunrise and sunset.
Consult an installer if the problem remains while irradiation of
the PV modules is sufficient.
Off COUNTRY
(or any name of
a country)
(Text is blinking)
Country code has not
been selected yet
Select the correct country code. See section 4.3.2.
On TEMP HI Internal temperature of
the inverter is high
Maybe the air flow of the Sunmaster is obstructed. See chapter
3.3 for installation guidelines. If the problem remains, consult
an installer
On SOL1 HIGH Voltage of the Solar
input is high.
Contact your supplier.
On NO GRID No connection to the
AC-grid
Check the connection to the AC-grid. Check the fuse in the
meter cupboard.
On ENS OFF ENS fault
On G83 OFF G83 fault
Error created by a grid safety device. The grid quality is
outside normal limits. Check the grid connection (for instance
too thin or too long AC wiring). Consult an installer
On VAC LOW AC voltage low Voltage of the AC grid is too low. Consult an installer.
On VAC HIGH AC voltage high Voltage of the AC grid is too high. Consult an installer.
On FAC LOW AC frequency low Frequency of the AC grid is too low. Consult an installer.
On FAC HIGH AC frequency high Frequency of the AC grid is too high. Consult an installer.
On INSULATION Insulation failure Leak current between PV modules and grounding. Consult an
installer.
Fast blinking NTC FAIL
Fast blinking EF I2C FAIL
Fast blinking ENS FAIL
Fast blinking CB I2C FAIL
Fast blinking HW VAC FAC
Fast blinking HW RELAY
Fast blinking HW ERROR 1-9
Defective device in the
Sunmaster
Write down the exact error text. Consult an installer for
replacement of the Sunmaster.

SPECIFICATIONS
EN / Sunmaster XS4300-3200-2000 / November 2008 19
7 SPECIFICATIONS
7.1 TECHNICAL SPECIFICATIONS
GENERAL SPECIFICATIONS
Article number See chapter 3.2
Typical string length 5-9 modules (72 cells), 7-12 modules (54 cells) or 10-18 modules (36 cells)
Operating temperature -20°C to 60°C (fully protected against over temperature)
Storage temperature -20°C to 70°C
Relative humidity max. 95%; PCB has anti-moisture coating
Protection degree IP44
Safety class class I
Galvanic isolation class II
MTBF 187.000 hours
Dimensions See chapter 7.2.
Weight 10 kg (22 lbs)
SOLAR INPUT (DC) Sunmaster XS4300 Sunmaster XS3200 Sunmaster XS2000
Nominal power at 45°C
ambient*
3488W DC 2651W DC 1590W DC
Maximum power 3663W DC 2784W DC 1670W DC
Recommended PV
power range
2900 – 4350Wp 2200 – 3300Wp 1300 – 2000Wp
# MPP trackers 1 MPP tracker (dynamic) 1 MPP tracker (dynamic) 1 MPP tracker (dynamic)
MPP voltage range at
nominal power
230-440V DC 180-480V DC 145-360V DC
MPP efficiency 99,9% (Fraunhofer algorithm) 99,9% (Fraunhofer algorithm) 99,9% (Fraunhofer algorithm)
Operating voltage
range
100 – 550V DC 100 – 600V DC 100 – 450V DC
Rated current 15A 15A 11A
Start-up power 7W 7W 5W
String connections 2 parallel 2 parallel 2 parallel
DC connectors 2 sets of Multi Contact (4 mm)
connectors
2 sets of Multi Contact (4 mm)
connectors
2 sets of Multi Contact (4 mm)
connectors
GRID OUTPUT (AC) Sunmaster XS4300 Sunmaster XS3200 Sunmaster XS2000
Nominal power at 45°C
ambient*
3300W 2500W 1500W
Maximum power 3465W 2625W 1575W
Voltage* 230V AC single phase (184-
265V country dependent)
230V AC single phase (184-
265V country dependent)
230V AC single phase (184-
265V country dependent)
Rated current 15A 11A 7A
Fuse 6.3x32 mm. 250V/30A T
(ceramic)
6.3x32 mm. 250V/20A T
(ceramic)
6.3x32 mm. 250V/20A T
(ceramic)
Frequency* 45 – 65Hz, country dependent 45 – 65Hz, country dependent 45 – 65Hz, country dependent
Power factor > 0.99 at full power > 0.99 at full power > 0.99 at full power
Stand-by power < 0.5W < 0.5W < 0.5W
EU efficiency 94.6% @ 370V 94.3% @ 400V 94.4% @ 300V
Maximum efficiency 95.6% 95.4% 95.7%
AC connections PG-13.5 gland and screw
terminals 2.5 - 4 mm2
PG-13.5 gland and screw
terminals 2.5 - 4 mm2
PG-13.5 gland and screw
terminals 2.5 - 4 mm2
* Depending on country settings, see section 4.3.2

SPECIFICATIONS
20 November 2008 / Sunmaster XS4300-3200-2000 / EN
SAFETY DEVICES
General Galvanic separation between DC and AC side, by means of a class II transformer
Island protection* Mastervolt Digital ENS - VDE 0126 -1-1 compliant
Reclosure time* 10-300 sec
Temperature protection Power derating above 75°C internal temperature, switch off at 90°C
DC side Earth fault (switch off); over-voltage (switch off); polarity (short circuit); overcurrent
(limiting by voltage shift-up); DC transients; (varistor and buffer capacitor); overload
(temperature controlled power derating)
AC side Current limiting; over- and under-voltage (switch off); over- and under-frequency (switch
off); short circuit (ceramic fuse); transients/surge (varistors)
MONITORING
Indicator Backlit display with indication of power and diagnostic messages
External communication 2 galvanic isolated RS485 QS databus connections
External communication 2 galvanic isolated MasterBus connections
Monitoring (optional) QS Data Control Basic (PC Software). Free download from www.mastervolt.com
Monitoring (optional) QS PC-Link (connect the QS-databus to the PC)
Monitoring (optional) Data Control Premium II: datalogger for up to 6 inverters with local, remote or internet
monitoring
Monitoring (optional) Data Control Professional: PV system control over the Internet, for up to 20 inverters
REGULATIONS & DIRECTIVES
CE Conformity Yes
EMC Directive EMC 89/336/EEG
Emission EN 55022 Class B
Harmonics EN 61000-3-2,
Dips, variations, flicker EN 61000-4-11 and -3-3
Immunity EN 55024
EN 61000-4-2 and -3
EN 61000-4-4, -4-5 and -4-6
LV directive 2006/95/EC
Electrical safety EN 60950-1
National grid interface req.* VDE 0126-1-1 / DK5940 / RD1663-2000 / K SC 8536 / G83-1 compliant
* Depending on country settings, see section 4.3.2