Product specifications

Mastervolt Solar offers a PV Design Wizard,
that will be available at our website at the
end of 2001. The only thing you have to
do, is to select your module type and enter
the desired number (or range) of modules
you want to use in your system: the
PV
Design Wizard
will tell you which inverter
to use and how to connect it. Refer to page
13 for more details of the design of a sys-
tem using the QS products.
MASTERVOLT SOLAR SUNMASTER QS SERIES
INTRODUCTION
What you can find in this Sunmaster QS brochure
The concept 2-3
The family of products 4-5
Control and monitoring products 6-7
Technology 8-9
Product design, production and quality 10-11
Product specifications 12-13
Delivery program and availability 14-15
ble, it is possible and easy to connect as
well. You are able to connect any type of
device in any arbitrary combination in a
straight forward way. From a simple local
read-out of a single inverter by PC to an
extensive system with multiple inverters,
wireless displays, data monitoring and
remote control: both are easily designed,
configured and connected. Central to the
concept is the
QS Data Bus with the QS
Multi-Master protocol, enabling bus wise
connection of all devices and automatic
configuration of all hardware and commu-
nication settings. For further information,
please refer to page 6 & 7.
Designing your system
With the QS Series, Mastervolt Solar pro-
vides an optimal inverter solution for any
system configuration you might need. The
wide input window, full range (700-5000
Wp) and features such as the multiple in-
puts with individual MPPTrackers, gives
the designer the freedom he needs to de-
sign virtually any kind of system. Systems
with several orientations or inclinations, or
several string lengths or PV module
types, can be connected
to one inverter, with-
out loss of yield. Con-
clusion: the QS series
offers optimal design
flexibility. To guide you
through all design options,
Key:
1. Compact lightweight enclosure.
Industrial design.
2. Clear LED bar with power indica-
tion and fault diagnosis.
3. Removable front panel for easy access
to the connection compartment.
Front panel can be replaced by the
optional QS Display (as shown).
4. Equipped with glands as a standard.
With DC Multi Contact and AC
Europlug connectors available too.
5. Simple mounting, without opening
the inverter.
1
2
3
4
5
3
Integrated QS Display connected to the QS Data Bus.
Sunmaster QS1200 in compact lightweight enclosure.
The QS Series is equipped with the QNS
anti-islanding device. This device ensures
redundant measurement and switch off of
the inverter in case of a grid failure. The
QNS device is based on measurement of
the grid voltage and frequency and com-
plies with all relevant standards. Addition-
ally, the QS inverters can be supplied with
a VDE0126 compliant ENS unit, that adds
the measurement of the grid impedance.
The solar side of the system is protected by
earth fault detection for installation faults
and thermally guarded varistors for light-
ning induced voltages.
Standard: bi-functional LED bar
All Sunmaster QS inverters are equipped
with a bi-functional LED bar, integrated
in the front cover of the unit. The LED bar
indicates the amount of converted power
during normal operation and the self diag-
nosis results during system faults or start-
up. This ensures that the operation of the
PV system can be monitored continu-
ously without any extra devices. In
case of system errors, the clear indica-
tion gives the user information, which
can be passed on to the service provider.
QS Data Monitoring and Control
The intuitive approach: when you think it
is possible, it is.
Part of the family of QS products is an ex-
tensive program of communication, dis-
play and monitoring facilities. The central
philosophy is that you literally should be
able to play with the possibilities: when
you think a certain configuration is possi-
Bi-functional LED bar in power mode (left)
and fault diagnosis mode (right).