MANUAL
User Manual for Sunways
Solar Inverters NT 2600, NT 4000 and
NT 6000
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List of Contents
1.0 General information
1.1 Safety information
83 General safety information
84 Opening the unit
1.2 Sunways Solar Inverters
NT 2600, NT 4000 and NT 6000
85 Scope of supply, inspecting the delivery
86 Integration into the PV system
Design of the PV generator
EN
87 Standard components of a PV system
88 Protection concept
2.0 Information on installation
2.1 Safety information
90 Electrical safety
Mechanical safety
91 Information on cleaning
2.2 Installation
93 Requirements on the place of installation
94 Electrical connection and cable entry
95 Grid connection
97 PV generator connection
98 Important Information
100 Communication connections
102 Connecting the sensors
79
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2.3 Commissioning
104 Switching the solar inverter on and off
106 Configurations
108 Structure and menu levels for configuration
3.0 Information on operation
3.1 Monitoring and diagnosis
111 Display
112 Data memory
3.2 Sunways NT Monitor software
113 General information
114 Initialising the remote modem
115 Connection and circuitry options
120 Configuring the interface cables
122 Sunways NT Monitor data acquisition
123 Operation of Sunways NT Monitor
3.3 Fault indications
125 Screen displays
3.4 Fault diagnosis
127 Indications, causes and remedies
3.5 Warranty terms and conditions
130 Warranty period
Terms and exclusion of liability for
solar inverters
80
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4.0 Appendix
4.1 Subject and abbreviation index
133 Designation and description
4.2 Function and information index
135 Functional principle and explanations
138 Block diagram
140 Technical data
144 TYCO SOLARLOK connectors
146 Conformity and safety declarations
150 General exclusion of liability, rights,
registered trademarks
EN
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1.0 General information
82
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1.1 Safety information
General safety information
The User Manual contains safety hints.
These are identified by a triangle with an
exclamation mark.
All safety hints contained in this section
and throughout the User Manual must
be complied with at all times to guarantee
the user's safety. The described product
must not be operated if any mechanical
or electrical components are defective.
!
ꢀ
Before commissioning the system, we
strongly advise you to carefully read and
heed the instructions! Non-compliance
can have serious consequences, for exam-
ple damage to the unit or other property
or physical injuries with possible loss of
life.
EN
The solar inverter must be installed by a
trained, qualified electrician. The electrici-
an must be approved by the competent
electricity board (EB).
The relevant tasks to be carried out are
identified by an additional adjacent
symbol in the respective chapter headings.
83
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Opening the unit
!
ꢀ
Before opening the cabinet, the unit must
always be disconnected from the grid and
from the PV generator.
The unit continues to conduct a hazardous
voltage internally and at the connection
sockets for ca. five minutes after disconnec-
ting from the PV generator. The energy
storage capacitors are only fully discharged
after this period.
After disconnecting the unit from the grid
and from the PV generator, you must wait
at least five minutes before opening the
unit.
84
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1.2 Sunways Solar Inverters NT 2600,
NT 4000 and NT 6000
Inspecting the delivery
The condition of our products is checked
prior to delivery. Although our products
are carefully packed in recyclable packing,
transportation damages can still occur.
These are generally the transport compa-
ny's responsibility.
Scope of supply
· Sunways Solar Inverter in the NT series
· Installation frame
· Manual, setup, warranty card, CD-Rom
with software
· 2 pairs of TYCO SOLARLOK connectors
Please inspect the delivered solar inverter
thoroughly!
EN
If you discover any damage to the packing
or the solar inverter, please inform the
transport company immediately. Your
specialist dealer will be glad to assist you
if required. Any damages must always be
reported to the transport company in wri-
ting seven days after receipt of the goods
at the latest.
85
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Integration of the solar inverter into the
PV system
· Check your PV generator for soiling ca.
every three years. This occurs particularly
at the lower edge of the modules and
forms a film, which even heavy rain can-
not wash away. Decreases in yield can be
prevented by cleaning with a wet cloth
or a brush.
Design of the PV generator
The technical data of the selected PV
generator must be within the specifica-
tion of the solar inverter (see Technical
Data). The Sunways NT Sundim design
program for the PV generator may be
helpful. Sunways NT Sundim is available
on the enclosed CD or from our web-
· Avoid shading of individual modules or
solar cells in your system. This can result
in heavy losses in yield.
Please take account of the following
points before planning your system:
· Pay attention to the skyward alignment
of the modules. You will obtain maxi-
mum yield in Central Europe with a
module inclination of 30° to the hori-
zontal and a direct southerly alignment
of the generator field.
· The output of the cells decreases as the
module temperature increases. Install
your PV generator with adequate rear
ventilation.
86
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Standard components of a PV system
Depending on the recommendations of
your electrician, your PV system will con-
sist of the following components:
Standard components of the PV system
PV
(1) PV generator switch
(2) Irradiation sensor with
integrated temperature
sensor
(3) Mains fuse
(1)
(3)
(4)
PV
(2)
(4) Energy meter
PC
Grid
PV generator switch:
Designed as DC load break cut-out to cut
off the PV generator from the solar inverter.
Dimensioning: min. 800 V, ≥ 16 A
Grid connection:
3-phase (Feed-in: 1-phase; grid monitoring:
3-phase)
87
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Protection concept
The following parameters are monitored
continuously and in parallel by the micro-
controller and displayed on the screen:
·
·
·
·
AFI error (ground fault)
Overheating of the cooling element
DC overvoltage
AC undervoltage/overvoltage
In the event of a fault, the conversion is
immediately blocked and the grid relay
disconnected.
In addition, the following protective devi-
ces are provided on both grid and PV
generator side:
· Grid-side varistors
Protect the power semiconductors from
high-energy, time-limited voltage spikes on
the grid and provide for a reduction of
energy in the throttle in the event of grid
disconnection.
· Generator-side varistors
Thermally monitored varistors provide pro-
tection against atmospheric overvoltages
(e.g. due to remote strikes during storms).
88
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2.0 Information on installation
89
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2.1 Safety information
Electrical safety
Before opening the cabinet, the solar
inverter must be disconnected from the
grid and from the PV generator.
!
ꢀ
ꢀ
The solar inverter continues to conduct
a hazardous voltage internally and at the
connection sockets for the PV generator
for ca. five minutes after disconnecting
from the PV generator. The energy storage
capacitors are only fully discharged after
this period.
After disconnecting the solar inverter from
the grid and PV generator, you must wait
at least five minutes before opening the
solar inverter.
Mechanical safety
During installation, make sure that the
cables or connection lines fitted to the
solar inverter are securely laid and that
suitable mechanical cable supports
(cable ducts etc.) are used.
90
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Information on cleaning
!
ꢀ
Before cleaning, disconnect the system
from the power grid by opening the grid
breaker (main fuse) and open the DC
switch on the PV generator, in order to
exclude the danger of electric shocks.
Use a soft, dry cloth to clean the system.
Never use corrosive, solvent-containing
or abrasive cleaners or polishes.
EN
91
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2.2 Installation
The solar inverter must be installed by a trained, qualified electrician. A special tool is
necessary for installation. Please read this chapter very carefully.
Warm
Air
150 mm
150 mm
Cool
Air
92
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Requirements on the place of installation
If installing the solar inverter in a switch
box, ensure adequate heat dissipation.
· Mechanical bearing capacity
During installation please bear in mind
that the solar inverter weighs 26 kg. The
installation base must be firm and capable
of continuously bearing the weight.
The ambient temperature must not fall
below or exceed –25°C or +40°C.
The solar inverter should not be exposed to
direct solar irradiation, so as to protect it
from unnecessary external heating.
· Thermal interaction
The installation base must consist of
flame-retardant material (e.g. no wood or
plastic in the base; concrete and brickwork
are suitable), as the heat sink emits tempe-
ratures up to max. 85°C.
EN
· Protection from damp and foreign bodies
The IP54 high protection class permits instal-
lation both inside and in roofed outdoor
areas, but the solar inverter must not be
exposed to direct rain.
A minimum distance of 300 mm must be
maintained above and below the cabinet,
and 150 mm on right and left from other
units, cabinets, ceilings, cable ducts etc..
Make sure that the solar inverter cannot be
exposed to foreign bodies (deposits of dust
and dirt).
The solar inverter must be installed verti-
cally, so as not to hinder adequate free
convection.
Several solar inverters must not be instal-
led on top of each other, so as to prevent
reciprocal heating.
93
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Electrical connection and cable entry
If the solar inverter is fixed to the installa-
tion frame, the electrical connection can
be led through. The unit may only be ope-
ned by a qualified electrician. The cabinet
cover must first be released and removed.
!
ꢀ
For installation, please observe the
The following cable inlets are located on
the underside:
instructions in the "Setup" leaflet!
RS 232, RS 485,
Irradiation sensor with inte-
grated temperature sensor
cable
AC wiring loom
L1, L2, L3, N, PE
–DC –DC +DC
+DC
Fig.: Inlets on the unit underside
94
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Grid connection
As line safety element in the grid feed-in
direction, we recommend a 3 x 25 A auto-
matic cut-out. No consumption units must
be connected to the feed line from the
solar inverter to the automatic cut-out.
The solar inverter only feeds in via termi-
nal L1.
!
ꢀ
The grid connection of the solar inverter
must have 5 wires (L1, L2, L3, PE, N). Cable
cross-sections of 5 x 4 mm2 are recommen-
ded.
If several solar inverters are operated in
parallel, the feed-in phase L1 of the unit
must be evenly distributed over grid
phases L1, L2 and L3 (see figure below).
EN
The solar inverter is connected to the
supply grid via the circuit board terminals
inside the unit.
Three-phase grid connection distributed over three units
L1 N L2 L3 PE
L1 N L2 L3 PE
L1 N L2 L3 PE
L1
L2
L3
N
PE
95
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You must use adequately dimensioned
cable cross-sections in order to avoid a
considerable increase in the grid impedan-
ce between the domestic distribution and
the solar inverter. The terminal range of
the AC terminals is 0.5 to 6 mm2 for rigid
cables and 0.5 to 10 mm2 for flexible
cables. With a high grid impedance, i.e.
with a long line or too small a cross-
section, the voltage increases at the grid
terminal during feed-in.
· Connect cables L1, L2, L3, PE and N to
the relevant circuit board terminal with
the help of a slot-head screwdriver (see
figure below).
If the terminal voltage exceeds the per-
missible value, the solar inverter is discon-
nected from the grid.
· Tighten the M25 screw connection, so
that the cable cannot exert any mechanical
force on the circuit board terminal.
Carefully perform the following steps:
· Check that there is no voltage before
introducing the supply main into the
unit.
· Lead the 5-core AC cable (outer diame-
ter 9 – 17 mm) through the M25 threa-
ded cable gland.
96
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· Connection
PV generator connection
The PV generator is connected via the
externally accessible, shock-proof TYCO
SOLARLOK connectors, which are enclosed
with the delivery. The TYCO SOLARLOK
connectors are designed for a cable cross-
section of 4 mm2 and must be crimped
(see data sheet and connector assembly
with TYCO crimping tool on page 144).
!
ꢀ
· Preparation
Execute the DC cabling according to your
electrician's system dimensioning. Check
each PV string for correct functioning
by performing a no-load voltage current
and short-circuit current measurement.
EN
Connect the two right DC female connectors
with «+», the two left DC female connectors
with «-» of the PV generator (see figure
below).
To achieve the necessary protection
against hazardous contact voltage during
the installation of PV systems, the positi-
ve and negative conductors must be kept
separate from the ground potential (PE).
Contactable, conductive parts of the PV
generator (e.g. metal frame, supporting
structure etc.) must be earthed (connec-
ted to PE).
Check that the generator is free from
ground faults.
Make the electrical connection to the
solar inverter.
97
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Important information
!
ꢀ
· The direct PV generator voltage is availa-
ble internally after connecting the PV
generator to the solar inverter via the
DC connectors and switching on the PV
generator switch!
· Please note that the input capacitors are
still charged even after switching off the
PV generator switch or removing the PV
generator plug connection!
· After disconnecting the AC and DC side,
the solar inverter still conducts voltage
for up to ca. five minutes!
· Therefore, wait for at least five minutes
until the internal voltage has dissipated.
Then you can work on the terminals!
Please note the general safety informa-
tion on pages 83 and 84!
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· The DC voltage can be up to 750 V. The
unit may only be opened by a qualified
electrician!
· Always disconnect the PV generator side
first by opening the PV generator switch,
and then the grid connection by isolating
the relevant mains fuse!
· If you do not have a PV generator switch
in your PV system, you must disconnect
the grid connection first of all by isola-
ting the relevant mains fuse. However, a
«grid error» will be entered in the error
memory of the solar inverter!
EN
· Disconnection of the PV generator by
removing the TYCO SOLARLOK DC con-
nectors must never be performed under
load. In the event of non-compliance, the
connectors could be damaged by a strong
electric arc. In this case, the relevant con-
nectors must be replaced!
99
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Communication connections
A 3-core cable is used for signal transmis-
sion via the RS 232, and a 2-core cable for
the RS 485 interface
!
ꢀ
Via the communication connections (inter-
faces), operating data can be retrieved
from the data memory with an external
computer and specific operating settings
made. Two interfaces are available:
RS 232 and RS 485.
The standard communication interface is
the RS 232 interface, which is installed in
all current PCs and notebooks. This inter-
face allows you to establish contact with
your PC immediately, using a connecting
cable. The use of more than one solar
inverter or cable lengths of more than
50 m requires the use of the RS 485
interface.
(Top figure) RS 232 and RS 485 interfaces
with the signals (from left to right):
RS 485+, RS 485+, RS 485-, RS 485-, GND_G,
TX, RX, GND_G, TX 2, RX 2.
Attention: RS 485+ and RS 485- are dupli-
cated. This means that the cable entry and
exit are additionally clamped.
The connections for the RS 232 or RS 485
interface supply cable are also made via
circuit board terminals and via the M12
screwed cable glands in the cabinet.
100
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· Connection
Seal the unrequired cable glands by
Remove the cover of the solar inverter
before connecting an interface cable. Pay
heed to all safety hints (Pages 90 and 91).
placing a spare piece of cable in the gland
hole and tightening with the screw clamp.
Please heed the description on the
Sunways NT Monitor software in
Chapter 3.2.
You will find the necessary cable terminal
block with the RS 485+, RS 485-, GND_G,
TX, RX, GND_G, TX 2, RX 2 connections on
the board in the centre, bottom left
(see figure on the left). Note the following
terminal configuration:
EN
RS 232: GND, RX, TX
RS 485: RS 485+, RS 485-
(The remaining signals, TX2 and RX2, are
only for service purposes.)
Use a small screwdriver. Press the orange
terminal. The terminal will open.
Insert the cable stripped to a minimum of
11 mm into the respective terminal hole.
Release the screwdriver. The cable is fixed
in the connection.
Once again, check that the cable connec-
tion is firmly located.
101
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Connecting the sensors
Before you connect an irradiation sensor,
you must remove the cover of the solar
inverter. Pay heed to all safety hints on
pages 90 and 91. Please note that the
inputs and outputs are not short-circuit
resistant.
!
ꢀ
· Optional irradiation sensor
The optional addition of an irradiation
sensor (type Si-01TC-T from Ing.-Büro
Mencke & Tegtmeyer ) with integrated
PT-100 temperature sensor for tempera-
ture measurement enables recording of
the irradiation data and the correspon-
ding module temperature in the cycle
of the internal data memory.
The optional irradiation sensor with
temperature sensor is connected to the
corresponding terminals at the bottom
right of the middle board.
This additional measuring unit helps with
analysis of the system. On the basis of the
values, possible errors in the PV generator,
such as e.g. shading or failure of solar cells,
can be detected.
(Top figure) Connection block for
temperature sensor cables with the signals:
Temp, Solar, V+ and V-.
For demonstration purposes, the irradia-
tion sensor and the corresponding data
can be used to show how a PV system
functions. In conjunction with the
Sunways NT Monitor visualisation soft-
ware, the stored data can be displayed.
102
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Configuration of the cable terminal block:
Temperature sensor
measuring signal:
Solar radiation
Temp
measuring signal:
Positive supply, 5V:
Supply, GND:
Solar
V+
V-
Using a small screwdriver, press the orange
terminal. The terminal will open.
EN
Insert the cable stripped to a minimum of
11 mm into the respective terminal hole.
Loosen the screwdriver. The cable is fixed
in the connection.
Once again, check that the cable connec-
tion is firmly located.
Seal the unrequired cable glands by
placing a spare piece of cable in the gland
hole and tightening the screw clamp.
103
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2.3 Commissioning
Switching the solar inverter on and off
Connect the solar inverter internally via
the ground cable (yellow-green) to the
cabinet cover. (See also Setup, step 7)
· Switching on
When the solar inverter is mechanically
installed and connected to the electrical
cables, the unit can be commissioned as
follows:
Put the cabinet cover on.
Screw it down tightly with the four
screws on the front.
Switch the grid connection on through
the external safety cutouts.
Do not place any objects (e.g. this manu-
al) on the cabinet of the solarinverter.
Free ventilation behind the solar inverter
must be able to take place unimpeded.
Switch the PV generator voltage on by
closing the PV generator switch. The solar
inverter will start up with adequate
PV power. If the PV input voltage is high
enough, the solar inverter will begin ope-
ration and feed the solar energy into the
electrical grid. You can see the operation
on the display. The current feed-in power
is shown here.
If the unit is installed in the open air,
please take special care to ensure that the
screwed cable glands are properly sealed
and that the cabinet cover is precisely
located.
The solar inverter is supplied by the PV
generator. The solar inverter switches on
in the morning and off again in the eve-
ning. The relevant switching on and swit-
ching off thresholds are defined for the
PV generator. If the solar energy is not
sufficient to supply the electronics, several
switch-on attempts may have to be made
104
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in cloudy weather. This is normal, and does
not affect either the yield or the mode of
functioning of the solar inverter.
!
ꢀ
· Switching off
Open the main switch for the PV DC
voltage and the mains fuse as described
above. After a waiting period of at least
five minutes, the solar inverter will be
voltage-free.
Disconnect the PV generator side first by
opening the PV generator switch, and
then the grid connection by isolating the
relevant mains fuse.
EN
If your PV system does not have a PV
generator switch, you must disconnect
the grid connection first of all by isolating
the relevant mains fuse. When you do
this, a "grid error" will be entered in the
error memory of the solar inverter.
Disconnection of the PV generator by
removing the TYCO SOLARLOK connectors
must never be performed under load. In
the event of non-compliance, the connec-
tors could be damaged by a strong electric
arc. In this case, the relevant connectors
must be replaced!
If the solar inverter is to be completely
disconnected (e.g. removal) from the PV
system, reconfigured or extended, the
cabinet cover must be removed. Pay heed
to all safety hints (Pages 90 and 91).
Remove the cabinet cover.
Check that the grid connection terminals
are voltage-free.
105
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Configurations
However, language setting, LCD contrast
and total energy offset (only to be used
in the event of replacement) must be
configured directly on the unit. If you wish
to configure the solar inverter without
an external laptop or PC, or to change the
language setting, please follow the
instructions below:
The solar inverter is basically configured
with the Sunways NT Monitor program,
using a laptop or PC (see enclosed CD).
In this regard please read the chapter
«System Monitoring and Diagnosis» and
«Sunways NT Monitor».
!
ꢀꢀ
Disconnect the solar inverter by isolating
the mains fuse from the grid. The direct
configuration of the solar inverter occurs
with PV operating voltage present!
Please note that the unit is under DC
voltage for configurations via the keys.
Danger to life!
Please observe all essential regulations for
«Working under voltage»!
106
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This is the only exception for which work
may be performed on the open unit under
voltage!
· Address of the solar inverter: address
«1» is stored in the memory at the
factory. In the case of several solar inver-
ters, consecutive numbering must be set.
For three solar inverters e.g. the addres-
ses «1», «2» and «3».
Remove the cabinet cover to carry out the
configuration.
· Date
The following settings can be performed
using the illustrated keys:
· Time
· Language (German or English)
EN
MINUS
ESC/CUR
UP/DWN
PLUS
RST
Fig.: The setting keys are located beneath the display.
107
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Use insulating material to press the keys
(e.g. a plastic rod). Avoid direct contact
with the printed circuit board, so that the
electronics cannot be damaged by electro-
static charging. The reset key (RST) only
resets the data recording program to its
original status. This does not affect the
operation of the solar inverter.
Starting from the current display on the
Structure and menu levels for configuration
PERFORMANCE
AND
OPERATING DATA
UP/
ESC
CUR
START
DWN
SOLAR INVERTER
ADDRESS
DATE
TIME
+/–
+/–
+/–
UP/
DWN
UP/
DWN
UP/
DWN
UP/
DWN
UP/
DWN
UP/
DWN
ADDRESS
1 ... 99
+
+
+
+
+
+
+
–
–
–
–
–
–
–
DAY
HOURS
ESC
CUR
ESC
CUR
ESC
CUR
MONTH
MINUTES
ESC
CUR
ESC
CUR
ESC
CUR
YEAR
SECONDS
ESC
CUR
SAVE
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screen, you can reach the next menu level
with the UP/DOWN key. The illustrated
structure facilitates settings on the menu
levels. Then save your settings by pressing
the ESC/CUR key.
TOTAL POWER
OFFSET
SOFTWARE
VERSION
LANGUAGE
LCD CONTRAST
+/–
+/–
+/–
UP/
DWN
UP/
DWN
UP/
DWN
UP/
DWN
UP/
DWN
UP/
DWN
+
+
+
–
–
–
ENG./GER.
CONTRAST
kWh
ESC
CUR
INCREMENT
(100 OR 1)
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3.0 Information on operation
110
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3.1 Monitoring and diagnosis
Display
The dot matrix LCD display is integrated
into the cabinet of the solar inverter so
that it is easily visible. The display consists
of 16 characters and 2 lines. The top line 1
shows the current feed-in power of the
solar inverter. The bottom line 2 outputs
operating data. The data can be displayed
in the German or English language.
EN
Line 1
Line 2
Current fed-in power
Power
kW
AC voltage
U-AC
V
DC voltage
U-DC
V
Daily yield in Wh
Total yield in kWh
Irradiation in W/m2 (*)
W_TAG
W_GES
SOLAR
Wh
kWh
Wm2
C
PV generator temperature in °C (*) TEMP-PAN
Time
(* if the optional irradiation sensor with
integrated temperature sensor is connec-
ted.)
111
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Data memory
· Storage of accumulated daily work in
Wh and of 40 daily values in the recircu-
lating storage and successive overwriting
of values
Your solar inverter is equipped with an
internal data memory as standard. This
data memory provides you with a detailed
view of the mode of functioning and the
relevant values of your solar power supply
at all times. You can access these data
with the help of the NT Monitor software
described below. The following measured
values can be determined:
· Storage of accumulated monthly work in
kWh and of 13 monthly values in the
recirculating storage, then overwriting
of values
· Storage of faults with max. ten values,
then successive overwriting of values
Please note that all displayed performance
data are displayed with a nominal measu-
ring accuracy of maximum 5 %. The energy
counter of your EVU should be used as
absolute reference for the fed-in energy.
· DC voltage
· AC voltage and AC current (power calcu-
lation)
· Irradiation and module temperature
(if a sensor is connected)
· Time and date
The following values can be accumulated,
stored and successively overwritten:
· 15 minute values for AC current, DC and
AC voltages, irradiation and temperature
· 120 times storage of 15-minute average
values in the recirculating storage;
storage depth: three days on average,
then overwriting of values
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3.2 Sunways NT Monitor software
General information
be transferred via a modem. We recom-
mend using two external analogue
modems made by ACER. If other modems
are used, the functional reliability cannot
always be guaranteed.
The Sunways NT Monitor visualisation soft-
ware was developed for PV system monito-
ring and configuration of the solar inverter
using PC. It is contained on the enclosed CD
and can also be downloaded free of charge
System prerequisites are:
The modem (remote modem) installed
in the solar inverter must be initialised
prior to installation with the help of the
Sunways NT Monitor software. Note the
"Help" function in the program in this
regard.
EN
· Intel Pentium from 100 MHz or higher
· Microsoft Windows 95/98/2000/NT
· At least 6 MB free hard disk storage space
· At least 16 MB main memory
The second modem (local modem) is
connected to the RS 232 interface of your
PC. This modem must not be initialised.
· VGA monitor with at least 800 x 600
(120 dpi) resolution
Different interface cables are required,
depending on the type of connection.
These are included in the accessories.
All measured values can be transferred
to a PC and visualised with the Sunways NT
Monitor software. Online, fault, minute,
daily and monthly values are available.
Up to 99 solar inverters can be monitored
and read out by means of a connection
via the RS 485 interface.
For connecting to your PC, Sunways solar
inverters in the NT series are equipped with
the RS 232 and RS 485 interfaces as stan-
dard. In the case of larger distances bet-
ween PV system and PC, the data can also
If the data are read out via the RS 485
interface and converted to RS 232 with
an interface converter, we recommend
the converter type «I-7520 Converter»
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from ICP-Deutschland, (available from your
specialist dealer), which will guarantee
reliable data transfer.
· Attention! Do not initialise the local
modem!
· The remote modem is now initialised
so that it automatically accepts a connec-
tion after two rings and connects at
9600 Baud.
The addresses of the solar inverter must
be input in the solar inverter using the
Sunways NT Monitor software or input
directly with the keys illustrated on
page 107.
Initialising the remote modem
If a remote modem is installed in the solar
inverter, it must be initialised using a PC
and the Sunways NT Monitor software.
· Connect the powered remote modem to
the PC via the COM port. Use the inter-
face cable provided with the modem for
this purpose. Start the Sunways NT
Monitor and set «Acer Modem» under
the «Settings/Remote Modem» menu.
· Click «Perform initialisation» and wait
until the scroll bar has come to an end.
The modem can now be switched off
and connected to the solar inverter via
the RS 232 interface.
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Connection and circuitry options
Individual PV system with maximum distance of 50 m between solar inverter and PC
RS 232
PC
PV
Connection to PC via RS 232
A single solar inverter can be directly connected
to a PC via the RS 232 interface
Stripped length: 11 mm
Jumper JP400: open
(1) This connection can be used to read out
an individual solar inverter if the distance
from the PC used does not exceed 50 m. To
do this, cable type A is stripped to 11 mm
and connected to the solar inverter.
115
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(2) Individual PV system with modem for remote inquiry
RS 232
RS 232
PC
MODEM
MODEM
PV
Connection to modem via RS 232
When connecting an individual solar inverter,
the remote modem is connected directly to
the RS 232 signal.
Stripped length: 11 mm
Jumper JP400: open
(see page 121)
(2) To install the remote inquiry of an indi-
vidual solar inverter, the RS 232 signal can
be routed directly from the solar inverter
to the remote modem.
Cable type B is used for this purpose. For
the RS 232 connection between solar inver-
ter and modem, a cable length of 50 m
should not be exceeded.
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(3) PV system for 2 to 99 solar inverters with interface converter (IC)
PV
RS 485
RS 232
PV
PC
I C
Connection to PC via RS 485/RS 232
In order to connect several solar inverters to a
PC, the RS 485 signal is looped through from
inverter to inverter, until it is led into the inter-
face converter. From here, the RS 232 signal is
conducted to the PC. Jumper JP400 is connected
to the solar inverter that is furthest away
from the interface converter. It must be open
for all other solar inverters.
Stripped length: 11 mm
Jumper JP400: see above
(3) Up to 99 solar inverters can be con-
the interface converter and the furthest
solar inverter. The individual solar inverters
are connected together via the RS 485
interface.
nected together and read out using this
connection. In this case, there is a maxi-
mum cable length of 500 m between
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The signal is looped through all units. Two
«RS 485+» terminals and two «RS 485-»
terminals are located on each terminal
block. This means that the signal can be led
into the solar inverter at one terminal and
out of the solar inverter at the other termi-
nal. The RS 485 signal is led out of the last
solar inverter in the series into the interface
converter using the following configuration:
«RS 485+» to «DATA+» and «RS 485-» to
«DATA-».
The interface converter generates an
RS 232 signal. It is connected to the PC with
the standard modem cable type D. Jumper
JP400 must be closed at the solar inverter
that is furthest away from the interface
converter. For all other solar inverters it
must be open. An address must be alloca-
ted, to enable identification of the indivi-
dual solar inverters. This is described in
Chapter 2.3 Commissioning, under
«Configuration».
(4) PV system for 2 to 99 solar inverters with interface converter (IC) and modem for
remote inquiry
PV
RS 485
RS 232
RS 232
PV
PC
MODEM
IC
MODEM
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Connection to modem via RS 485/RS 232
In order to connect several solar inverters to
the remote monitoring, the interface converter
is connected directly to a modem via RS 232.
Jumper JP400 is connected to the solar inverter
that is furthest away from the interface conver-
ter. It must be open for all other solar inverters.
Stripped length: 11 mm
Jumper JP400: see above
(4) If several solar inverters are to be con-
nected to the remote inquiry, then the
individual inverters are connected together
by means of the RS 485 signal, as when
reading out several units locally. This signal
is converted by the interface converter
into the RS 232 signal, from where it is led
to the modem using cable type C. Jumper
JP400 must be closed at the solar inverter
that is furthest away from the interface
converter. For all other solar inverters it
must be open. An address must be alloca-
ted, to enable identification of the indivi-
dual solar inverters. This is described in
Chapter 2.3 Commissioning, under
«Configuration».
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Configuring the interface cables
Cable type A
1
2
3
4
5
Female
connector to PC,
9-pole
6
7
8
9
TX
RX
Signal cables
to the solar inverter
on X400
GND
Cable type B
1
2
3
4
5
Connector
to modem,
9-pole
6
7
8
9
RX
TX
Signal cables
to solar inverter
on X400
GND
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Cable type C
1
2
3
4
5
5
4
3
2
1
Connector
to modem,
9-pole
9
8
7
6
6
7
8
9
Connector
to interface
converter
Locating jumper JP400 in the Sunways
Solar Inverter
Please check the correct position of jum-
per JP400, depending on your selected
communication circuit. You will find this
jumper above the communication connec-
tions (see figure opposite).
121
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Sunways NT Monitor data acquisition
· Monthly values
Date in the solar inverter, fed-in since
commissioning and monthly energy.
· Online values
DC voltage (U_DC), AC voltage (U_AC),
AC current (I_AC), date, time, AC power,
module temperature, module irradiation,
«fed-in today», «fed-in since commissio-
ning», error.
Representation as graphic or print; Option
of saving as bitmap; Zoom-in of graphics
possible. Individual solar inverters can be
called up with the scroll menu.
· 15 minute values
· Fault data
DC voltage (U_DC), AC voltage (U_AC),
AC current (I_AC), date, time, temperature,
irradiation, «fed-in in 15 minutes», accumu-
lated daily total of all 15 minute average
values.
Date, time and type of fault (for the
last ten faults)
· Calendar
Date and time in the solar inverter
Representation as graphic or print; Option
of saving as bitmap; Fade-in of graphics
possible. Individual solar inverters can be
called up with the scroll menu.
· Modem
Selection of the modem type and input
of the address signal
If required, detailed information on
Sunways NT Monitor can be found under
the «Help» menu item in the program
software.
· Daily values
Date and daily energy in the solar inverter.
Representation as graphic or print; Option
of saving as bitmap; Zoom-in of graphics
possible. Individual solar inverters can be
called up with the scroll menu.
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Operation of Sunways NT Monitor
solar inverter in the top section of the
right window half and the new number
beneath it. The numbering is changed
by clicking on the «Make change» key.
After installing the Sunways NT Monitor
software on your PC, you can start the
program. The word «Sunways» will now
appear on your screen.
Exit the window with the «Close» key.
You will go back to the «Setting» menu.
On the menu bar at the top, you will see
the four menu areas «Program», «Data»,
«Settings» and «Help».
You can set the interface configuration
with your PC by clicking on the «Connec-
tion» key.
EN
· Setting menu
By clicking on the «Remote modem»
key, you can configure an optional modem
(e. g. if you wish to retrieve data by
remote inquiry).
To configure your solar inverter, open the
«Settings» menu by clicking on it with
the mouse, and click on the «Inverter» key.
Enter the address number that you have
defined for your solar inverter next to
«Inverter». For example, the number «1»
for one solar inverter. In the case of
several units, select «all».
· Data menu
In the «Data» menu, you can call up
the current accumulated performance and
energy of the solar inverter by clicking
on the «Online» key.
Then enter the desired date and time. The
settings are transferred to the solar inver-
ter by clicking on the «Make change» key.
You can display the data measured at
15 minute intervals by clicking on the
«Minute values» key. The data and values
are graphically visualised by clicking on
the «Graphic representation» key.
If you are using several solar inverters and
wish to make a change to the numbering,
you can enter the old number of the
123
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You can call up «Daily values» and
«Monthly values» in the same way, by
clicking on the respective keys.
Exit the window with the «Close» key.
You will return to the «Settings» menu.
· Help menu
You will find further helpful information
on operating the Sunways NT Monitor
software in the «Help» menu.
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3.3 Fault indications
Display for AC undervoltage:
Line 1
Line 2
Error: UAC_3
Undervoltage
Your solar inverter operates fully automati-
cally and maintenance-free. However, if
operational faults occur due to external or
internal causes, these will be displayed on
the screen.
· AC over/undervoltage (1-phase)
· AC over/undervoltage (3-phase)
Your solar inverter monitors the limits of
minimum and maximum permissible grid
voltage in the feed-in phase. If these limits
are exceeded, the solar inverter will switch
off and will only start up again when the
voltage value is within the limits.
Your solar inverter monitors the limits of
minimum and maximum permissible
3-phase grid voltage. If these limits are
exceeded (Umin = 184 V, UN = 230 V,
Umax = 264 V), the solar inverter will switch
off and will only start up again when the
voltage value is within the limits. The
fault cut-out can be triggered even by very
brief overvoltages and undervoltages.
EN
Display for AC overvoltage:
Line 1
Line 2
Error: UAC_1
Overvoltage
Display for AC overvoltage:
Line 1
Line 2
Error: UAC_3
Overvoltage
Display for AC undervoltage:
Line 1
Line 2
Error: UAC_1
Undervoltage
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· DC overvoltage
Display for AFI error protection:
A maximum no-load voltage of 750 V is
permitted for the PV generator.
All components of the DC input are ade-
quately dimensioned with a safety factor.
If the threshold is exceeded, the solar
inverter stops the feed-in and a «DC over-
voltage error» is displayed.
Line 1
Line 2
Error: AFI
Residual current
· Overheating fault
Your solar inverter is designed for an
ambient temperature of up to +40°C.
When the maximum upper temperature
threshold is reached, the feed-in is stop-
ped. When the heat sink temperature
has decreased, the solar inverter starts
up again automatically.
Display for DC overvoltage:
Line 1
Line 2
Error: UDC
Overvoltage
· AFI residual current
Line 1
Line 2
Error: TEMP
The AFI residual current (insulation error,
ground fault) is displayed if a residual
current has occurred in the PV system and
the solar inverter has subsequently discon-
nected from the grid. Ground faults are
monitored on both the AC and DC side
(universal current-sensitive FI). If this error
message is displayed, the entire PV system
must be checked for insulation errors. The
AFI residual current operated device only
monitors the phase into which feed-in
occurs.
Overtemperature
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3.4 Fault diagnosis
Fault display
Causes
Remedies
Overtemperature The maximum permissible
ambient temperature of
The installation location is not suitable.
Please find another installation location.
40°C has been exceeded.
The necessary air circulation Clean the solar inverter if dirt is
was not taken into account
during installation.
impeding the cooling unit.
Objects have been stored on Remove the objects.
the heat sink, impeding free
convection.
UDC
The maximum DC voltage
has been exceeded.
Check the dimensioning of your
Overvoltage
PV generator.
Too many modules are con-
nected in series.
Reduce the number of modules and
re-commission the system.
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Fault display
Causes
Remedies
UAC_1
The grid voltage is too low
or too high.
The solar inverter monitors the limits of
the minimum and maximum permissible
3-phase grid voltage. If the values exceed
or fall below these limits (Umin = 184 V,
Umax = 264 V), the solar inverter swit-
ches off and only restarts automatically
when the voltage value has returned
within the limits. The fault cut-out can
be triggered even if the values only
exceed or fall below the limits very
briefly (up to ca. 1 ms).
UAC_3
AC under/over-
voltage
Ask your electricity board about grid
stability and design.
The cable cross-section in
Check the format of your grid connection
the AC feed line to the solar (energy counter) and the grid feed-in
inverter is too small.
point to your electricity board.
Your solar system feeds into
a spur line, which is inade-
quately dimensioned.
128
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Fault display
Causes
Remedies
AFI
The AFI error is displayed if
The entire PV system must be checked
Residual current
a residual current has occur- for insulation errors.
red in the PV system and
the solar inverter has sub-
sequently disconnected
from the grid.
Incorrect time,
date are stored
in Sunways NT
Monitor with
incorrect time
data.
The battery is empty.
Have the battery (button cell) replaced
by an expert.
The battery is located on the LCD display
board.
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3.5 Warranty terms and conditions
Sunways AG must be allowed the necessary
time to eliminate the defect. Sunways AG
will endeavour to eliminate the defect
within 14 days of receipt of the unit. If this
is not possible, the customer will be infor-
med of the reason and the time when the
defect will be eliminated will be specified.
· Warranty period
The warranty period is five years from
purchase of the solar inverter by the end
user. Please complete the enclosed war-
ranty card and return it to Sunways AG.
Please keep the original invoice with the
date of purchase in a safe place. This will
be required as proof, in addition to the
warranty card, in the event of a claim.
Please preserve the original packing,
even after expiry of the warranty period.
Carriers may only accept solar inverters in
transport-safe original packing. Therefore,
please inform us before collection if you
have lost the original packing. We will
gladly provide you with new packing for
a charge.
· Conditions
During the warranty period, the solar
inverter will be repaired free of labour
and material costs in Constance. Instal-
lation costs are borne by the customer,
unless agreed otherwise. The completed
warranty card must be sent to Sunways
AG, Constance within seven days of
purchase.
Please notify us of any warranty claims
by telephone (technical hotline:
+49 7531 99677577), stating your name,
address, telephone and serial number,
and your email address if applicable.
130
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· Exclusion of liability
Warranty claims and liability are excluded
for direct or indirect damages due to:
· Interventions, modifications or attempted
repairs
· Inadequate ventilation
· Force majeure (e.g. lightning strike, water
damage, vandalism, fire, overvoltage,
thunderstorms etc.)
EN
· Inappropriate transport
· Non-observance of pertinent regulations
or incorrect installation or commissioning
· Leakage of overvoltages from the varis-
tors on the DC side on the PV generator
More extensive or other claims for direct
or indirect damages, particularly claims
for damages, including those arising from
positive contract violation, are excluded,
unless legally prescribed.
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4.0 Appendix
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4.1 Subject and abbreviation index
Designation
AC
Description
Alternating Current: grid current
AFI, RCD
Operator protection in the event of residual currents
AFI: Universal Sensitive Residual Current
RCD: Residual Current Device
EN
DC
Direct Current
PV generator side of the solar inverter
EMV
EB
Electromagnetic Compatibility
Electricity Board
INDC
IP
Current used to operate the solar inverter
Identification of class of protection against external
environ-mental influences (penetration of water and
mechanical foreign bodies)
kW
Kilowatt
LCD
MPP
Liquid Crystal Display
Maximum Power Point
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Designation
Grid impedance
PNDC PNAC
Description
AC resistance of grid, impedance
DC and AC rated power:
Power which the inverters can permanently consume
(DC) or emit (AC).
PT
Temperature sensor
Photovoltaic
PV
PV generator switch
DC load break switch to cut off the PV generator from
the solar inverter
UNDC
Voltage: specifies the normal operating voltage at which
the solar inverter is operated
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4.2 Function and information index
Functional principle and explanations
· DC and AC filters
The DC and AC filters are specially designed
EMC filters, which are integrated as direct
components on the board. They guarantee
compliance with the EMC limit values on
the AC side and on the PV generator side.
High-frequency emissions are avoided by
the filters on the PV generator side.
The electrical energy of the PV generator
is buffered by a capacitive storage, from
where it is fed into the public grid via a
solar inverter synchronised with the grid,
with an ideal phase angle of [cos phi = 1].
· Differential measurement
EN
A sinusoidal current with a very low harmo-
nic distortion is injected into the public
grid by the current injection inductor. This
improves the grid quality.
The generator current and the voltage are
recorded via a current transformer and a
differential measurement. The values are
important input values for the regulation
and setting of the correct working point.
®
Thanks to the HERIC technology (patent
®
applied for) in the self-commutated
Sunways Solar Inverter, the hysteresis losses
in the current injection inductors that
occur in conventional solar inverters and
the switching losses in the semiconductors
are considerably reduced. Consequently,
Sunways Solar Inverters achieve a peak
efficiency during conversion. The concept
of the Sunways Solar Inverter is completed
by a rapid MPP control, which maintains
the MPP point with a very high adaptation
efficiency.
· Solar inverter with HERIC technology
The heart of the solar inverter with the
power semiconductors serves for conver-
sion of the current from direct into
alternating current. Peak efficiencies are
®
achieved, thanks to the HERIC techno-
logy. The switching frequency (PWM) is
16 kHz.
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· Grid protection
· Sensor interface
The grid protection is a powerful relay
which ensures reliable grid disconnection
in the case of error and for night switch-
off. This relay fulfils the requirement for
trouble-free grid disconnection.
An irradiation sensor with integrated
temperature sensor can be optionally con-
nected to the relevant interface. This
allows first time users to quickly grasp the
mode of functioning of their PV system,
and facilitates monitoring of the PV
system for professionals.
· Microcontroller
As well as system management, the
efficient microcontroller undertakes
additional tasks, such as saving data
and communication.
· AFI universal sensitive residual current
device
The universal (DC and AC) sensitive residu-
al current device (AFI) monitors the solar
system for residual currents. To do this,
it disconnects the solar inverter from the
grid by means of a relay as soon as a resi-
dual current occurs on the PV generator
side or on the AC side in the solar inverter.
After cutoff by the relay and as soon as
the residual current has stopped, the AFI
automatically attempts to reconnect the
solar inverter to the grid. The AFI of the
Sunways solar inverter complies with
standard DIN V VDE V 0126-1-1.
· LCD display
Important information for the operator
about the system operation and status is
displayed on an LCD display of 2 x 16
characters.
· RS 485 and RS 232 interfaces
The two RS 485 and RS 232 interfaces
installed as standard serve for communi-
cation with the solar inverter and the PV
system. The system can be visualised via
the Sunways NT Monitor software.
In addition, the AFI of Solar Inverters NT
2600, NT 4000 and NT 6000 has an absolu-
tely time-independent effective value
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cutoff threshold, which is dependent on
the performance class. The NT 2600 model
is switched off at an absolute residual cur-
rent of 130 mA, the NT 4000 model at an
absolute residual current of 200 mA and
the NT 6000 model at an absolute residual
current of 300 mA. The AFI triggers within
< 0.2 seconds.
· MPP control
EN
The solar inverter has a rapid MPP control,
which maintains the MPP point with a very
high adaptation efficiency. If surplus power
is provided by the PV generator, the solar
inverter limits this by shifting the working
point of the characteristic curve of the PV
generator, so as not to exceed the maxi-
mum permissible AC feed-in power in
accordance with VDEW.
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Block diagram
PV-GENERATOR
=
≈
HERIC®
DC-FILTER
CAPACITIVE STORAGE
TEMP CONTROLLER
IDC
UDC
DIFFERER. MEASUREMENT
CONTROL
DATAPRO
RADIATION
AND
TEMPERATURE
DATA
R
T
IRRADIATION SENSOR AND
TEMPERATURE SENSOR
(OPT.)
RS 232
RS 485
MICRO-
CONTROLLER
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AFI
CURRENT IMPRESSION
INDUCTOR
RESIDUAL CURRENT
AC FILTER
GRID PROTECTION
AFI
IAC
AND
CESSING
UAC
DIFFERER. MEASUREMENT
GRID
L1, L2, LE
N, PE
LCD-DISPLAY
(2 LINES)
KEYBOARD
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Technical data
Model
Solar Inverter NT 2600
1500 bis 2750 W
Recommended PV generator power
2300 W
9 W
< 0.005 W
15 W
Rated input power
DC
Stand-by consumption
Night-time consumption
AC energy generated from
Nominal voltage
400 V
350 ≤ U
750 V
410 V
340 V
7 A
≤ 650 V
U
voltage range
MPP
MPP
Open-circuit voltage
Switch-on voltage
Switch-off voltage
Maximum current
Nominal current
5.75 A
2 (with adapter: 4)
Number of inputs
97 per cent
96.5 per cent
yes
Maximum efficiency
European efficiency (weighted)
®
HERIC topology
2200 W
2200 W
50 Hz +/- 0.2
230 V
Rated continuous output power Pn
Maximum power Pp
Nominal frequency
AC
Grid voltage
- 20 to +15 per cent
9.6 A
Grid voltage tolerance range
Nominal current
9.6 A
Max. current
< 3 per cent
~1
sinusoidal
Distortion factor at Pn
Reactive power factor (cos phi)
Output current
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Solar Inverter NT 4000
Solar Inverter NT 6000
2000 bis 4125 W
4000 bis 6250 W
3400 W
9 W
5200 W
9 W
< 0.005 W
15 W
< 0.005 W
15 W
400 V
400 V
350 ≤ U
750 V
410 V
340 V
10 A
≤ 650 V
350 ≤ U
750 V
410 V
340 V
15 A
≤ 650 V
MPP
MPP
8.5 A
13 A
2 (with adapter: 4)
2 (with adapter: 4)
97 per cent
96.4 per cent
yes
97 per cent
96.3 per cent
yes
3300 W
4600 W
3300 W
5000 W
50 Hz +/- 0.2
230 V
50 Hz +/- 0.2
230 V
- 20 to +15 per cent
14.3 A
- 20 to +15 per cent
20 A
14.3 A
21.7 A
< 3 per cent
~1
< 3 per cent
~1
sinusoidal
sinusoidal
141
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Grid voltage monitoring
threephase
Earth fault protection
RCD (universally sensitive)
Output characteristic
current source
Grid connection fuse layout
16 A
Required number of grid connection phases
Number of feed-in phases (230 V single-phase)
3
1
Data interfaces
Sensor interfaces
Display
RS 232, RS 485
irradiation, temperature
LCD, 2 x 16 characters
System of protection against envir. influences
Relative air humidity, max.
Cooling
Ambient temperature (Celsius)
Dimensions (height x width x depth)
Weight
IP 54
95 per cent
free convection
- 25°C to 40°C
510 x 300 x 180 mm
26 kg
Noise development
Standard warranty period (option)
silent (< 35 dB (A))
5 years (10 years)
142
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threephase
threephase
RCD (universally sensitive)
RCD (universally sensitive)
current source
current source
25 A
25 A
3
1
3
1
RS 232, RS 485
RS 232, RS 485
irradiation, temperature
LCD, 2 x 16 characters
irradiation, temperature
LCD, 2 x 16 characters
IP 54
IP 54
95 per cent
95 per cent
free convection
- 25°C to 40°C
510 x 300 x 180 mm
26 kg
free convection
- 25°C to 40°C
510 x 300 x 180 mm
26 kg
silent (< 35 dB (A))
5 years (10 years)
silent (< 35 dB (A))
5 years (10 years)
143
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TYCO SOLARLOK connectors
!
ꢀ
The TYCO SOLARLOK connectors
are only approved for connection to
permanently laid cables!
Fig.: Manual crimping tool for assembly of
TYCO SOLARLOK connectors
They must not be disconnected
under load!
The circuit must be interrupted at
a suitable point! The cables must be
provided with a suitable adhesive
label close to the TYCO SOLARLOK
connector!
The TYCO SOLARLOK connectors must
always be disconnected from other
voltage sources on all sides during
assembly, in order to protect against
electric shock.
144
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Any type of soiling (dust, humidity etc.)
will negatively affect the operation of the
system over the desired period of use.
This applies particularly for the usability
of the seals and crimping of the contacts.
The utmost care must therefore be taken
to work cleanly during installation.
cables of 7.2 to 8.0 mm sheath diameter).
The seal must be matched to the sheath
diameter of the cables used.
The following sequence must be observed
for assembly of TYCO SOLARLOK connec-
tors:
Different circular contacts are used for
different conductor cross-sections for the
TYCO SOLARLOK connectors. The correct
tool insert must be used, depending on
this cross-section. The enclosed TYCO
SOLARLOK connectors are equipped with
circular contacts for a cable cross-section
of 4 mm. The enclosed seals have internal
dimensions of 6 (for cables of 5.3 to 6.2
mm sheath diameter) and 8 mm (for
1. Strip the voltage-free cable by 8 mm.
2. Crimp on the circular contact.
3. Push the cable gland, clamping piece
and seal onto the cable.
EN
4. Engage the contact in the connector
housing.
5. Screw on the clamping nut.
6. Tightening torque of the threaded cable
gland is 1.5 Nm.
145
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Declaration of Conformity as per EG Low Voltage Guidelines 73/23/EWG,
attachment III B
We herewith declare that the following product including the required accessories has
been manufactured according to the EG guidelines 73/23/EWG and 93/68/EWG:
Solar Inverter
Product
Sunways AG, Photovoltaic Technology
Macairestr. 3-5, D -78467 Konstanz
Sunways NT 6000, NT 4000, NT 2600
2003-05-15
Manufacture
Type
From date of manufacture
Applied standards
Standard
Title
EN 50178
Electronic equipment for use in power
installations
Edition
1998
Explanation
This product is a component intended for further assembly. Due to the features resulting therefrom, the product cannot initially
meet requirements made of finished products, machines or plants. It must thus be used for mounting / assembly only.
An evaluation of electrical and mechanical safety and of environmental conditions (e.g. extrinsic objects and / or humidity) must
be performed after mounting / assembly in the finished plant.
The EMC characteristics of this product can change in a mounted / assembled state. An EMC check must thus be made for the
PV-System by the manufacturer of the PV-System.
Konstanz, 2004-08-05
City, Date
Roland Burkhardt,CEO
146
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Declaration of Conformity as defined by the EMC guideline 89/336/EWG with
revisions 91/263/EWG and 93/68/EWG.
We herewith declare that the following product has been manufactured according to
the requirements outlined in the EG requirements on 89/336/EWG (EMC guideline with
revisions 91/263/EWG)
Solar Inverter
Product
Sunways AG, Photovoltaic Technology
Macairestr. 3-5, D -78467 Konstanz
Sunways NT 6000, NT 4000, NT 2600
2003-05-15
Manufacturer
EN
Type
from date of manufacture
applied standards
Standard
EN 50082-2 (EN 61000-4-2, -4-3, -4-4,-4-6,-4-8)
EN 55014-1; EN 55011; EN 61000-3-2;
EN 61000-3-3; E DIN VDE 0126
Explanation
Maintaining the EMC guideline assumes an EMC adapted installation of the component within the plant or the machine.
Please pay attention to the installation notes of the technical specifications. Tests were carried out using a typical construction in
a test assembly that conforms with the stands. The legal requirements with regard to resistance to interference and to emission
of interference, limit values and standards are outlined in the above mentioned documentation.
These Sunways products are intended for installation into a PV-System. The test results are not applicable to every installed state
in every PV-System. This declaration therefore does not guarantee the EMC characteristics of the end product.
Konstanz, 2004-08-05
City, Date
Roland Burkhardt,CEO
147
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Declaration of Conformity of
nominal power and maximum output power
of solar inverters.
Solar Inverter
Product
Sunways AG, Photovoltaic Technology
Macairestr. 3-5, D -78467 Konstanz
Manufacturer
NT 6000
4,6 kVA
5 kVA
1,08
NT 4000
3,3 kVA
3,3 kVA
1
NT 2600
2,2 kVA
2,2 kVA
1
Type Sunways
Nominal power SN
Maximum output power Smax10Min
Smax10Min /SN
Explanation
The maximum output power of the solar inverter has to be declarated as a max. 10 minute average.
Konstanz, 2004-08-05
Ort, Datum
Roland Burkhardt,CEO
148
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Declaration of Conformity as defined by the guidelines for connection
and grid feeding in parallel of in-plant generation on low-voltage-guidelines
(VDEW 4. Edition 2001).
We herewith declare that the following product has been manufactured according to
the requirements outlined in the guidelines for connection and grid feeding in parallel
of in-plant generation on low-voltage-guidelines:
Solar Inverter
Product
EN
Sunways AG, Photovoltaic Technology
Macairestr. 3-5, D -78467 Konstanz
Sunways NT 6000, NT 4000, NT 2600
2003-05-15
Manufacturer
Type
From date of manufacture
Applied standard
Standard
Title
In-plant generation on low-voltage-
guidelines
Edition
4. Edition 2001
Explanation
The NT series of solar inverters from Sunways are monophase inverters that are not capable of isolated operation. They are
equipped with a voltage monitor and three phase monitoring of the line voltage for undervoltage in accordance with section
2.4.2 of the VDEW Guideline (4th edition 2001). A constantly accessible isolation point is therefore not required (see section
2.1.2 Switching point with isolating function). Observation of the cut-off values of the threephase undervoltage protection
is undertaken by means of a routine check test on each device
Konstanz, 2004-08-05
City, Date
Roland Burkhardt,CEO
149
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General exclusion of liability
All rights reserved. © Sunways AG
Although the accuracy and completeness
of the information contained in these
instructions have been checked with the
utmost care, no liability can be accepted
for errors or omissions.
The products specified in the title are
copyright-protected and are sold with
licences. No part of this document may
be reproduced in any form, without prior
written permission of Sunways AG and
the Sunways licensors.
· Sunways AG reserves the right to modify
the hardware and software features
described here at any time, without
prior notice.
Registered trademarks
· These instructions may not be duplica-
ted, passed on, copied or translated in
to other languages, either in whole or
in part, in any form or by any means,
without prior written permission of
Sunways AG.
Sunways NT 2600, NT 4000 and NT 6000
and the Sunways logo are registered
trademarks of Sunways AG, Constance.
®
HERIC is a registered trademark of
· Sunways AG does not provide any war-
ranty for damages due to defective or
lost data, incorrect operation or mal-
functioning of the solar inverter, the
software, additional equipment or PCs.
Fraunhofer, Munich.
150
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Concept and design: Denklabor Kommunikationsbüro GmbH, Lucerne/Switzerland
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Sunways AG
Photovoltaic Technology
Macairestraße 3 - 5
D -78467 Konstanz
Telefon +49 7531 996770
Fax +49 7531 99677444
E-Mail info@sunways.de
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