User Manual for Sunways
Solar Inverters NT 2600, NT 4000 and
NT 6000
300 mm
510 mm
180 mm
EN
List of Contents
1.0 General information
1.1 Safety information
1.2 Sunways Solar Inverters
NT 2600, NT 4000 and NT 6000
2.0 Information on installation
2.1 Safety information
2.2 Installation
General safety information
Opening the unit
Scope of supply, inspecting the delivery
Integration into the PV system
Design of the PV generator
Standard components of a PV system
Protection concept
Electrical safety
Mechanical safety
Information on cleaning
Requirements on the place of installation
Electrical connection and cable entry
Grid connection
PV generator connection
Important Information
Communication connections
Connecting the sensors
83
84
85
86
87
88
90
91
93
94
95
97
98
100
102
79
2.3 Commissioning
3.0 Information on operation
3.1 Monitoring and diagnosis
3.2 Sunways NT Monitor software
3.3 Fault indications
3.4 Fault diagnosis
3.5 Warranty terms and conditions
Switching the solar inverter on and off
Configurations
Structure and menu levels for configuration
Display
Data memory
General information
Initialising the remote modem
Connection and circuitry options
Configuring the interface cables
Sunways NT Monitor data acquisition
Operation of Sunways NT Monitor
Screen displays
Indications, causes and remedies
Warranty period
Terms and exclusion of liability for
solar inverters
104
106
108
111
112
113
114
115
120
122
123
125
127
130
80
EN
4.0 Appendix
4.1 Subject and abbreviation index
4.2 Function and information index
Designation and description
Functional principle and explanations
Block diagram
Technical data
TYCO SOLARLOK connectors
Conformity and safety declarations
General exclusion of liability, rights,
registered trademarks
133
135
138
140
144
146
150
81
82
1.0 General information
General safety information
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 example damage to the unit or other property
or physical injuries with possible loss of
life.
The solar inverter must be installed by a
trained, qualified electrician. The electrician 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
EN
1.1 Safety information
The User Manual contains safety hints.
These are identified by a triangle with an
exclamation mark.
!
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 disconnecting 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
!
85
EN
1.2 Sunways Solar Inverters NT 2600,
NT 4000 and NT 6000
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
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 company's responsibility.
Please inspect the delivered solar inverter
thoroughly!
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 writing seven days after receipt of the goods
at the latest.
Integration of the solar inverter into the
PV system
Design of the PV generator
The technical data of the selected PV
generator must be within the specification 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 website, www.sunways.de.
Please take account of the following
points before planning your system:
· Pay attention to the skyward alignment
of the modules. You will obtain maximum yield in Central Europe with a
module inclination of 30° to the horizontal 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.
· 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 cannot wash away. Decreases in yield can be
prevented by cleaning with a wet cloth
or a brush.
· Avoid shading of individual modules or
solar cells in your system. This can result
in heavy losses in yield.
86
87
EN
Standard components of a PV system
Depending on the recommendations of
your electrician, your PV system will consist of the following components:
PC
(3)
SUNWAYS
NT
PV
PV
(1)
(2)
(4)
(1) PV generator switch
(2) Irradiation sensor with
integrated temperature
sensor
(3) Mains fuse
(4) Energy meter
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)
Standard components of the PV system
Protection concept The following parameters are monitored
continuously and in parallel by the microcontroller 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 devices 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 protection against atmospheric overvoltages
(e.g. due to remote strikes during storms).
88
89
2.0 Information on installation
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.
2.1 Safety information
!
90
91
EN
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.
!
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.
92
➟
150 mm
Cool
Air
Warm
Air
300 mm
300 mm
150 mm
➟
➟
➟
93
EN
If installing the solar inverter in a switch
box, ensure adequate heat dissipation.
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.
· Protection from damp and foreign bodies
The IP54 high protection class permits installation both inside and in roofed outdoor
areas, but the solar inverter must not be
exposed to direct rain.
Make sure that the solar inverter cannot be
exposed to foreign bodies (deposits of dust
and dirt).
Requirements on the place of installation
· 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.
· 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 temperatures up to max. 85°C.
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..
The solar inverter must be installed vertically, so as not to hinder adequate free
convection.
Several solar inverters must not be installed on top of each other, so as to prevent
reciprocal heating.
Electrical connection and cable entry
For installation, please observe the
instructions in the "Setup" leaflet!
94
!
If the solar inverter is fixed to the installation frame, the electrical connection can
be led through. The unit may only be opened by a qualified electrician. The cabinet
cover must first be released and removed.
The following cable inlets are located on
the underside:
–DC +DC
RS 232, RS 485,
Irradiation sensor with integrated temperature sensor
cable
AC wiring loom
L1, L2, L3, N, PE
–DC
+DC
Fig.: Inlets on the unit underside
95
EN
Grid connection
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 recommended.
The solar inverter is connected to the
supply grid via the circuit board terminals
inside the unit.
!
As line safety element in the grid feed-in
direction, we recommend a 3 x 25 A automatic 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 terminal L1.
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).
L1 N L2 L3 PE
L1 N L2 L3 PE L1 N L2 L3 PE
L1
L2
L3
N
PE
Three-phase grid connection distributed over three units
96
You must use adequately dimensioned
cable cross-sections in order to avoid a
considerable increase in the grid impedance 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 crosssection, the voltage increases at the grid
terminal during feed-in.
If the terminal voltage exceeds the permissible value, the solar inverter is disconnected from the grid.
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 diameter 9 – 17 mm) through the M25 threaded cable gland.
· 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).
· Tighten the M25 screw connection, so
that the cable cannot exert any mechanical
force on the circuit board terminal.
97
EN
PV generator connection
· 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.
To achieve the necessary protection
against hazardous contact voltage during
the installation of PV systems, the positive 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 (connected to PE).
Check that the generator is free from
ground faults.
Make the electrical connection to the
solar inverter.
!
· 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 crosssection of 4 mm2 and must be crimped
(see data sheet and connector assembly
with TYCO crimping tool on page 144).
Connect the two right DC female connectors
with «+», the two left DC female connectors
with «-» of the PV generator (see figure
below).
98
Important information
· The direct PV generator voltage is available 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 information on pages 83 and 84!
!
99
EN
· 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 isolating the relevant mains fuse. However, a
«grid error» will be entered in the error
memory of the solar inverter!
· Disconnection of the PV generator by
removing the TYCO SOLARLOK DC connectors 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 connectors must be replaced!
100
Communication connections
Via the communication connections (interfaces), 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 interface 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.
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.
!
A 3-core cable is used for signal transmission via the RS 232, and a 2-core cable for
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 duplicated. This means that the cable entry and
exit are additionally clamped.
101
EN
· Connection
Remove the cover of the solar inverter
before connecting an interface cable. Pay
heed to all safety hints (Pages 90 and 91).
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:
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 connection is firmly located.
Seal the unrequired cable glands by
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.
102
Connecting the sensors
· 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 temperature measurement enables recording of
the irradiation data and the corresponding module temperature in the cycle
of the internal data memory.
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.
For demonstration purposes, the irradiation sensor and the corresponding data
can be used to show how a PV system
functions. In conjunction with the
Sunways NT Monitor visualisation software, the stored data can be displayed.
!
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.
The optional irradiation sensor with
temperature sensor is connected to the
corresponding terminals at the bottom
right of the middle board.
(Top figure) Connection block for
temperature sensor cables with the signals:
Temp, Solar, V+ and V-.
EN
Configuration of the cable terminal block:
Temperature sensor
measuring signal: Temp
Solar radiation
measuring signal: Solar
Positive supply, 5V: V+
Supply, GND: V-
Using 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.
Loosen the screwdriver. The cable is fixed
in the connection.
Once again, check that the cable connection 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
104
2.3 Commissioning
Connect the solar inverter internally via
the ground cable (yellow-green) to the
cabinet cover. (See also Setup, step 7)
Put the cabinet cover on.
Screw it down tightly with the four
screws on the front.
Do not place any objects (e.g. this manual) on the cabinet of the solarinverter.
Free ventilation behind the solar inverter
must be able to take place unimpeded.
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.
Switching the solar inverter on and off
· Switching on
When the solar inverter is mechanically
installed and connected to the electrical
cables, the unit can be commissioned as
follows:
Switch the grid connection on through
the external safety cutouts.
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 operation 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.
The solar inverter is supplied by the PV
generator. The solar inverter switches on
in the morning and off again in the evening. The relevant switching on and switching 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
EN
105
in cloudy weather. This is normal, and does
not affect either the yield or the mode of
functioning of the solar inverter.
· Switching off
Disconnect the PV generator side first by
opening the PV generator switch, and
then the grid connection by isolating the
relevant mains fuse.
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.
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).
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.
Disconnection of the PV generator by
removing the TYCO SOLARLOK connectors
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 connectors
must be replaced!
Remove the cabinet cover.
Check that the grid connection terminals
are voltage-free.
!
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:
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
Configurations
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».
!
107
EN
This is the only exception for which work
may be performed on the open unit under
voltage!
Remove the cabinet cover to carry out the
configuration.
The following settings can be performed
using the illustrated keys:
PLUS
UP/DWN
RST
Fig.: The setting keys are located beneath the display.
MINUS
ESC/CUR
· Address of the solar inverter: address
«1» is stored in the memory at the
factory. In the case of several solar inverters, consecutive numbering must be set.
For three solar inverters e.g. the addresses «1», «2» and «3».
· Date
· Time
· Language (German or English)
108
SOLAR INVERTER
ADDRESS
PERFORMANCE
AND
OPERATING DATA
DATE TIME
HOURS
ESC
CUR
UP/
DWN
+
–
MINUTES
+
–
SECONDS
+
–
SAVE
ESC
CUR
ESC
CUR
ESC
CUR
UP/
DWN
ADDRESS
1 ... 99
+
–
DAY
+
–
MONTH
+
–
YEAR
+
–
UP/
DWN
UP/
DWN
ESC
CUR
ESC
CUR
UP/
DWN
UP/
DWN
ESC
CUR
UP/
DWN
ESC
CUR
+/–
+/–
+/–
START
Structure and menu levels for configuration
▲
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 electrostatic 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
109
LANGUAGE
SOFTWARE
VERSION
ENG./GER.
+
–
UP/
DWN
UP/
DWN
LCD CONTRAST
CONTRAST
+
–
UP/
DWN
UP/
DWN
TOTAL POWER
OFFSET
kWh
+
–
UP/
DWN
UP/
DWN
INCREMENT
(100 OR 1)
ESC
CUR
+/–
+/–
+/–
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.
110
3.0 Information on operation
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.
(* if the optional irradiation sensor with
integrated temperature sensor is connected.)
111
EN
Line 1 Current fed-in power Power kW
Line 2 AC voltage U-AC V
DC voltage U-DC V
Daily yield in Wh W_TAG Wh
Total yield in kWh W_GES kWh
Irradiation in W/m2 (*) SOLAR Wm2
PV generator temperature in °C (*) TEMP-PAN C
Time
Data memory
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:
· DC voltage
· AC voltage and AC current (power calculation)
· 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
· Storage of accumulated daily work in
Wh and of 40 daily values in the recirculating storage and successive overwriting
of values
· 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 measuring accuracy of maximum 5 %. The energy
counter of your EVU should be used as
absolute reference for the fed-in energy.
112
113
EN
3.2 Sunways NT Monitor software
General information
The Sunways NT Monitor visualisation software was developed for PV system monitoring and configuration of the solar inverter
using PC. It is contained on the enclosed CD
and can also be downloaded free of charge
on the Internet from www.sunways.de.
System prerequisites are:
· 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
· VGA monitor with at least 800 x 600
(120 dpi) resolution
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.
For connecting to your PC, Sunways solar
inverters in the NT series are equipped with
the RS 232 and RS 485 interfaces as standard. In the case of larger distances between PV system and PC, the data can also
be transferred via a modem. We recommend using two external analogue
modems made by ACER. If other modems
are used, the functional reliability cannot
always be guaranteed.
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.
The second modem (local modem) is
connected to the RS 232 interface of your
PC. This modem must not be initialised.
Different interface cables are required,
depending on the type of connection.
These are included in the accessories.
Up to 99 solar inverters can be monitored
and read out by means of a connection
via the RS 485 interface.
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»
114
from ICP-Deutschland, (available from your
specialist dealer), which will guarantee
reliable data transfer.
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 interface 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.
· Attention! Do not initialise the local
modem!
· The remote modem is now initialised
so that it automatically accepts a connection after two rings and connects at
9600 Baud.
115
Individual PV system with maximum distance of 50 m between solar inverter and PC
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX2
RX2
Yellow
Green
Brown
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
PC
INVERTER
(1)
PV
RS 232
Connection and circuitry options
(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.
(2) Individual PV system with modem for remote inquiry
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX2
RX2
Green
Yellow
Brown
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)
116
INVERTER
(1)
PV
PC
MODEM
MODEM
RS 232
RS 232
(2) To install the remote inquiry of an individual 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 inverter and modem, a cable length of 50 m
should not be exceeded.
(3) PV system for 2 to 99 solar inverters with interface converter (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 interface 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 connected together and read out using this
connection. In this case, there is a maximum cable length of 500 m between
117
PC
IC
INVERTER
(2 to 99)
INVERTER
(1)
PV
PV
RS 232
RS 485
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX2
RX2
RS 485+
RS 485+
RS 485–
RS 485–
the interface converter and the furthest
solar inverter. The individual solar inverters
are connected together via the RS 485
interface.
118
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 terminal. 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 allocated, to enable identification of the individual solar inverters. This is described in
Chapter 2.3 Commissioning, under
«Configuration».
PC
IC
INVERTER
(2 to 99)
INVERTER
(1)
PV
PV
MODEM
MODEM
RS 232
RS 232
RS 485
(4) PV system for 2 to 99 solar inverters with interface converter (IC) and modem for
remote inquiry
119
RS 485+
RS 485+
RS 485–
RS 485–
GND_G
TX
RX
GND_G
TX2
RX2
RS 485+
RS 485+
RS 485–
RS 485–
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 converter. 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 connected 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 allocated, to enable identification of the individual solar inverters. This is described in
Chapter 2.3 Commissioning, under
«Configuration».
120
1
2
3
4
5
6
7
8
9
Configuring the interface cables
Cable type A
Female
connector to PC,
9-pole
Signal cables
to the solar inverter
on X400
TX
RX
GND
1
2
3
4
5
6
7
8
9
Cable type B
Connector
to modem,
9-pole
Signal cables
to solar inverter
on X400
RX
TX
GND
Locating jumper JP400 in the Sunways
Solar Inverter
Please check the correct position of jumper JP400, depending on your selected
communication circuit. You will find this
jumper above the communication connections (see figure opposite).
1
2
3
4
5
6
7
8
9
Cable type C
Connector
to modem,
9-pole
Connector
to interface
converter
5
4
3
2
1
9
8
7
6
121
Sunways NT Monitor data acquisition
· 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 commissioning», error.
· 15 minute values
DC voltage (U_DC), AC voltage (U_AC),
AC current (I_AC), date, time, temperature,
irradiation, «fed-in in 15 minutes», accumulated daily total of all 15 minute average
values.
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.
· 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.
· Monthly values
Date in the solar inverter, fed-in since
commissioning and monthly energy.
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.
· Fault data
Date, time and type of fault (for the
last ten faults)
· Calendar
Date and time in the solar inverter
· 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.
122
123
EN
Operation of Sunways NT Monitor
After installing the Sunways NT Monitor
software on your PC, you can start the
program. The word «Sunways» will now
appear on your screen.
On the menu bar at the top, you will see
the four menu areas «Program», «Data»,
«Settings» and «Help».
· Setting menu
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».
Then enter the desired date and time. The
settings are transferred to the solar inverter by clicking on the «Make change» 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
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.
Exit the window with the «Close» key.
You will go back to the «Setting» menu.
You can set the interface configuration
with your PC by clicking on the «Connection» key.
By clicking on the «Remote modem»
key, you can configure an optional modem
(e. g. if you wish to retrieve data by
remote inquiry).
· 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.
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.
124
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.
3.3 Fault indications
Your solar inverter operates fully automatically and maintenance-free. However, if
operational faults occur due to external or
internal causes, these will be displayed on
the screen.
· AC over/undervoltage (3-phase)
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.
Display for AC overvoltage:
125
EN
Line 1 Error: UAC_3
Line 2 Overvoltage
Display for AC undervoltage:
· AC over/undervoltage (1-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.
Display for AC overvoltage:
Display for AC undervoltage:
Line 1 Error: UAC_3
Line 2 Undervoltage
Line 1 Error: UAC_1
Line 2 Overvoltage
Line 1 Error: UAC_1
Line 2 Undervoltage
Display for AFI error protection:
· 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 stopped. When the heat sink temperature
has decreased, the solar inverter starts
up again automatically.
126
· DC overvoltage
A maximum no-load voltage of 750 V is
permitted for the PV generator.
All components of the DC input are adequately dimensioned with a safety factor.
If the threshold is exceeded, the solar
inverter stops the feed-in and a «DC overvoltage error» is displayed.
Display for DC overvoltage:
· AFI residual current
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 disconnected 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.
Line 1 Error: UDC
Line 2 Overvoltage
Line 1 Error: AFI
Line 2 Residual current
Line 1 Error: TEMP
Line 2 Overtemperature
127
3.4 Fault diagnosis
Fault display
Overtemperature
UDC
Overvoltage
Causes
The maximum permissible
ambient temperature of
40°C has been exceeded.
The necessary air circulation
was not taken into account
during installation.
Objects have been stored on
the heat sink, impeding free
convection.
The maximum DC voltage
has been exceeded.
Too many modules are connected in series.
Remedies
The installation location is not suitable.
Please find another installation location.
Clean the solar inverter if dirt is
impeding the cooling unit.
Remove the objects.
Check the dimensioning of your
PV generator.
Reduce the number of modules and
re-commission the system.
128
Fault display
UAC_1
UAC_3
AC under/overvoltage
Causes
The grid voltage is too low
or too high.
The cable cross-section in
the AC feed line to the solar
inverter is too small.
Your solar system feeds into
a spur line, which is inadequately dimensioned.
Remedies
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 switches 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).
Ask your electricity board about grid
stability and design.
Check the format of your grid connection
(energy counter) and the grid feed-in
point to your electricity board.
129
Fault display
AFI
Residual current
Incorrect time,
date are stored
in Sunways NT
Monitor with
incorrect time
data.
Causes
The AFI error is displayed if
a residual current has occurred in the PV system and
the solar inverter has subsequently disconnected
from the grid.
The battery is empty.
Remedies
The entire PV system must be checked
for insulation errors.
Have the battery (button cell) replaced
by an expert.
The battery is located on the LCD display
board.
3.5 Warranty terms and conditions
· Warranty period
The warranty period is five years from
purchase of the solar inverter by the end
user. Please complete the enclosed warranty 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.
· Conditions
During the warranty period, the solar
inverter will be repaired free of labour
and material costs in Constance. Installation 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.
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 informed of the reason and the time when the
defect will be eliminated will be specified.
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.
130
131
EN
· 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.)
· Inappropriate transport
· Non-observance of pertinent regulations
or incorrect installation or commissioning
· Leakage of overvoltages from the varistors 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.
4.0 Appendix
132
4.1 Subject and abbreviation index
133
EN
Designation
AC
AFI, RCD
DC
EMV
EB
I
NDC
IP
kW
LCD
MPP
Description
Alternating Current: grid current
Operator protection in the event of residual currents
AFI: Universal Sensitive Residual Current
RCD: Residual Current Device
Direct Current
PV generator side of the solar inverter
Electromagnetic Compatibility
Electricity Board
Current used to operate the solar inverter
Identification of class of protection against external
environ-mental influences (penetration of water and
mechanical foreign bodies)
Kilowatt
Liquid Crystal Display
Maximum Power Point
134
Designation
Grid impedance
P
NDCPNAC
PT
PV
PV generator switch
U
NDC
Description
AC resistance of grid, impedance
DC and AC rated power:
Power which the inverters can permanently consume
(DC) or emit (AC).
Temperature sensor
Photovoltaic
DC load break switch to cut off the PV generator from
the solar inverter
Voltage: specifies the normal operating voltage at which
the solar inverter is operated
135
EN
4.2 Function and information index
Functional principle and explanations
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].
A sinusoidal current with a very low harmonic distortion is injected into the public
grid by the current injection inductor. This
improves the grid quality.
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.
· 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.
· Differential measurement
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.
· Solar inverter with HERIC
®
technology
The heart of the solar inverter with the
power semiconductors serves for conversion of the current from direct into
alternating current. Peak efficiencies are
achieved, thanks to the HERIC
®
technology. The switching frequency (PWM) is
16 kHz.
· Sensor interface
An irradiation sensor with integrated
temperature sensor can be optionally connected 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.
· AFI universal sensitive residual current
device
The universal (DC and AC) sensitive residual 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 residual 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.
In addition, the AFI of Solar Inverters NT
2600, NT 4000 and NT 6000 has an absolutely time-independent effective value
136
· Grid protection
The grid protection is a powerful relay
which ensures reliable grid disconnection
in the case of error and for night switchoff. This relay fulfils the requirement for
trouble-free grid disconnection.
· Microcontroller
As well as system management, the
efficient microcontroller undertakes
additional tasks, such as saving data
and communication.
· 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 communication with the solar inverter and the PV
system. The system can be visualised via
the Sunways NT Monitor software.
137
EN
cutoff threshold, which is dependent on
the performance class. The NT 2600 model
is switched off at an absolute residual current 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
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 maximum permissible AC feed-in power in
accordance with VDEW.
DC-FILTER
CAPACITIVE STORAGE
Block diagram
HERIC
®
=
≈
DIFFERER. MEASUREMENT
R
T
IRRADIATION SENSOR AND
TEMPERATURE SENSOR
(OPT.)
RS 232
RS 485
MICRO-
CONTROLLER
CONTROL
DATAPRO
TEMP CONTROLLER
I
DC
U
DC
RADIATION
AND
TEMPERATURE
DATA
PV-GENERATOR
138
CURRENT IMPRESSION
INDUCTOR
AC FILTER GRID PROTECTION
RESIDUAL CURRENT
AFI
DIFFERER. MEASUREMENT
LCD-DISPLAY
(2 LINES)
KEYBOARD
AND
CESSING
AFI
U
AC
I
AC
GRID
L1, L2,LE
N, P E
139
140
Technical data
Solar Inverter NT 2600
Recommended PV generator power
Rated input power
Stand-by consumption
Night-time consumption
AC energy generated from
Nominal voltage
U
MPP
voltage range
Open-circuit voltage
Switch-on voltage
Switch-off voltage
Maximum current
Nominal current
Number of inputs
Maximum efficiency
European efficiency (weighted)
HERIC
®
topology
Rated continuous output power Pn
Maximum power Pp
Nominal frequency
Grid voltage
Grid voltage tolerance range
Nominal current
Max. current
Distortion factor at Pn
Reactive power factor (cos phi)
Output current
Model
1500 bis 2750 W
2300 W
9 W
< 0.005 W
15 W
400 V
350 ≤ U
MPP
≤ 650 V
750 V
410 V
340 V
7 A
5.75 A
2 (with adapter: 4)
97 per cent
96.5 per cent
yes
2200 W
2200 W
50 Hz +/- 0.2
230 V
- 20 to +15 per cent
9.6 A
9.6 A
< 3 per cent
~1
sinusoidal
DC
AC
141
Solar Inverter NT 4000 Solar Inverter NT 6000
2000 bis 4125 W
3400 W
9 W
< 0.005 W
15 W
400 V
350 ≤ U
MPP
≤ 650 V
750 V
410 V
340 V
10 A
8.5 A
2 (with adapter: 4)
97 per cent
96.4 per cent
yes
3300 W
3300 W
50 Hz +/- 0.2
230 V
- 20 to +15 per cent
14.3 A
14.3 A
< 3 per cent
~1
sinusoidal
4000 bis 6250 W
5200 W
9 W
< 0.005 W
15 W
400 V
350 ≤ U
MPP
≤ 650 V
750 V
410 V
340 V
15 A
13 A
2 (with adapter: 4)
97 per cent
96.3 per cent
yes
4600 W
5000 W
50 Hz +/- 0.2
230 V
- 20 to +15 per cent
20 A
21.7 A
< 3 per cent
~1
sinusoidal
142
Grid voltage monitoring
Earth fault protection
Output characteristic
Grid connection fuse layout
Required number of grid connection phases
Number of feed-in phases (230 V single-phase)
Data interfaces
Sensor interfaces
Display
System of protection against envir. influences
Relative air humidity, max.
Cooling
Ambient temperature (Celsius)
Dimensions (height x width x depth)
Weight
Noise development
Standard warranty period (option)
threephase
RCD (universally sensitive)
current source
16 A
3
1
RS 232, RS 485
irradiation, temperature
LCD, 2 x 16 characters
IP 54
95 per cent
free convection
-25°C to 40°C
510 x 300 x 180 mm
26 kg
silent (< 35 dB (A))
5 years (10 years)
143
threephase
RCD (universally sensitive)
current source
25 A
3
1
RS 232, RS 485
irradiation, temperature
LCD, 2 x 16 characters
IP 54
95 per cent
free convection
-25°C to 40°C
510 x 300 x 180 mm
26 kg
silent (< 35 dB (A))
5 years (10 years)
threephase
RCD (universally sensitive)
current source
25 A
3
1
RS 232, RS 485
irradiation, temperature
LCD, 2 x 16 characters
IP 54
95 per cent
free convection
-25°C to 40°C
510 x 300 x 180 mm
26 kg
silent (< 35 dB (A))
5 years (10 years)
TYCO SOLARLOK connectors
The TYCO SOLARLOK connectors
are only approved for connection to
permanently laid cables!
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
!
Fig.: Manual crimping tool for assembly of
TYCO SOLARLOK connectors
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.
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
145
EN
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 connectors:
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.
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.
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:
146
Product
Manufacture
Type
From date of manufacture
Applied standards
Standard
Title
Edition
Solar Inverter
Sunways AG, Photovoltaic Technology
Macairestr. 3-5, D - 78467 Konstanz
Sunways NT 6000, NT 4000, NT 2600
2003-05-15
EN 50178
Electronic equipment for use in power
installations
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.
City, Date Roland Burkhardt,CEO
Konstanz, 2004-08-05
147
EN
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)
Product
Manufacturer
Type
from date of manufacture
applied standards
Standard
Solar Inverter
Sunways AG, Photovoltaic Technology
Macairestr. 3-5, D - 78467 Konstanz
Sunways NT 6000, NT 4000, NT 2600
2003-05-15
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.
City, Date Roland Burkhardt,CEO
Konstanz, 2004-08-05
148
Declaration of Conformity of
nominal power and maximum output power
of solar inverters.
Product
Manufacturer
Type Sunways
Nominal power S
N
Maximum output power S
max10Min
S
max10Min/SN
Solar Inverter
Sunways AG, Photovoltaic Technology
Macairestr. 3-5, D - 78467 Konstanz
Explanation
The maximum output power of the solar inverter has to be declarated as a max. 10 minute average.
Ort, Datum Roland Burkhardt,CEO
Konstanz, 2004-08-05
NT 4000
3,3 kVA
3,3 kVA
1
NT 2600
2,2 kVA
2,2 kVA
1
NT 6000
4,6 kVA
5 kVA
1,08
149
EN
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:
Product
Manufacturer
Type
From date of manufacture
Applied standard
Standard
Title
Edition
Solar Inverter
Sunways AG, Photovoltaic Technology
Macairestr. 3-5, D - 78467 Konstanz
Sunways NT 6000, NT 4000, NT 2600
2003-05-15
In-plant generation on low-voltageguidelines
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
City, Date Roland Burkhardt,CEO
Konstanz, 2004-08-05
150
General exclusion of liability
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.
· Sunways AG reserves the right to modify
the hardware and software features
described here at any time, without
prior notice.
· These instructions may not be duplicated, 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 AG does not provide any warranty for damages due to defective or
lost data, incorrect operation or malfunctioning of the solar inverter, the
software, additional equipment or PCs.
All rights reserved. © Sunways AG
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.
Registered trademarks
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
Fraunhofer, Munich.
Concept and design: Denklabor Kommunikationsbüro GmbH, Lucerne/Switzerland
Sunways AG
Photovoltaic Technology
Macairestraße 3 - 5
D-78467 Konstanz
Telefon +49 7531 996770
Fax + 49 7531 99677444
E-Mail info@sunways.de
www.sunways.de
9-1-03-0-0 Version 03/05
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