Sunways NT 10000 User manual

200
MANUAL
User Manual for
Sunways Solar Inverter NT 10000
BP13370_NT_10000_englisch 23.11.2005 17:40 Uhr Seite 1

SOLAR
INVERTERS
User Manual for
Sunways Solar Inverter NT 10000
BP13370_NT_10000_englisch 23.11.2005 17:40 Uhr Seite 2

R
S
Table of contents
1.0 General Information
1.1 Safety Instructions
1.2 Sunways Solar Inverter
NT 10000
2.0 Installation Instructions
2.1 Safety Instructions
2.2 Basic Settings
2.3 Installation
General Safety Instructions
Opening the Device
Scope of Delivery
Integrating the Solar Inverter
in the PV System
Structure of NT 10000
Protection Concept
Electrical Safety
Mechanical Safety
Cleaning Instructions
Setting the Fixed Voltage Level
Country Settings
Installation Site Requirements
Mechanical Installation
Electrical Connection and Cable Entry
Grid Connection
Connecting the PV Generator
Communication Interfaces
91
92
93
94
96
98
101
101
102
103
104
107
108
108
109
112
115
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2.4 Commissioning the Solar Inverter
2.5 Dismantling the Solar Inverter
3.0 Operating Instructions
3.1 Operating the Display
3.2 Configuration of the Solar Inverter
3.3 3.3 Internal Data Memory
3.4 Sunways Monitor 2.0 Software
3.5 Sunways Portal and Sunways
Communicator
Connecting the Alarm Relay
Connecting the Insolation and
Temperature Sensor
Starting-Up and Shutting-Down the
Solar Inverter
General Information
Menu Guide
Navigating with the Arrow Keys
Setting Values
Menu Navigation Diagram
Setting the RS485 address
Setting the Date / Time
Setting the Display Language
Setting the LCD Contrast
Setting the Total Yield
General Information
General Information
General Information
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120
122
123
125
125
125
126
128
128
128
128
128
129
130
131
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Modem Link
Interface Cables
Interface Transformer
Linking and Interconnecting Possibilities
Errors 001 to 036
Error, Causes and Remedies
Safety Instruction and Installation
Designation and Description
Solar Inverter NT 10000
EU Low Voltage Directive 73/23/EEC
EMC Directive 89/336/EEC, Including Changes
91/263/EEC
Safety Clearance / Certificate of Compliance
(VDEW 4th edition 2001)
Duration of Guarantee, Conditions,
Exclusion of Liability
Rights, Registered Trademarks
3.6 Communication Link
3.7 Error Display
3.8 Error Diagnosis
4.0 Appendix
4.2 Tyco Solarlok Connectors
4.2 List of Special Terms and
Abbreviations
4.3 Technical Data NT 10000
4.4 Conformity and Safety
Declarations
4.5 Terms and Conditions of
Guarantee
4.6 General Exclusion of Liability
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132
132
133
139
144
154
156
158
160
161
162
163
165
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1.0 General information
90
Thank you for having chosen a Sunways
Solar Inverter NT 10000! You have acquired
a high-quality product with unique features
and a top efficiency level. This Solar Inverter
is designed in accordance with the proven
HERIC®topology and therefore guarantees
you a maximum energy yield.
The Solar Inverter is equipped with three
independent energy units which transform
the energy of three separately connected
PV generators into grid-compatible AC
power and inject it in three phases. Thanks
to the MPP multitracking process, PV gene-
rators with various ratings can be connected
to the same Solar Inverter with the
NT 10000.
In this user manual, you will find explana-
tions on how to use the Sunways Solar
Inverter NT 10000. It includes information
on installation, commissioning, the functio-
ning method, and system monitoring.
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General Safety Instructions
All safety instructions contained in this
section as well as in the entire user manu-
al must be observed to ensure the safety
of the user. The described product may
not be operated if any mechanical or elec-
trical component is defect.
Prior to commissioning the PV system, we
strongly recommend reading and observing
the manual and the instructions carefully!
Non-compliance may lead to serious con-
sequences such as damage to the device,
damage to other assets, personal injury, or
fatal accidents.
The Solar Inverter may only be installed
by a trained and qualified electrician.
It must be approved by the power supply
company in charge. In the chapter
headings, the due steps are additionally
marked by the adjacent symbol.
1.1 Safety Instructions
The user manual contains safety instruc-
tions. They are marked by a triangle with
an exclamation mark.
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!
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Opening the Device
Prior to opening the housing, always
disconnect the device from the grid and
the PV generator.
After having been disconnected from the
PV generator, there is still lethal voltage
inside the device and at the PV generator
hubs for approximately five minutes. It
takes that long for the energy-storing
capacitors to fully discharge.
After having disconnected the device
from the grid and the PV generator, wait
at least five minutes before opening the
device.
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!
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1.2 Sunways Solar Inverter NT 10000
Scope of Delivery
· Sunways Solar Inverter NT 10000
· assembly frame
· user manual, setup, guarantee card,
CD ROM with software
· 3 pairs of Tyco Solarlok connectors
Checking the Consignment
Prior to shipment, our products are chec-
ked to make sure they are in a perfect con-
dition. They are carefully packaged in recy-
clable materials. Nevertheless, damage may
occur during transportation which is nor-
mally the fault of the forwarding company.
Please check the delivered Solar Inverter
carefully!
Should you notice any damage to the
packaging or to the Solar Inverter, please
notify the forwarding company immedi-
ately. If required, your specialist dealer will
be glad to support you. If a damage report
is needed, it must be filed with the forwar-
ding company no later than seven days
after receipt of the consignment.
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Integrating the Solar Inverter
in the PV System
Rating of the PV Generator
The technical data of the selected PV
generator must be compatible with the
specification of the Solar Inverter (see
Technical Data). An incompatible rating
may reduce the yield or destroy the
device. The rating program Sunways NT
Sundim can help you select the correct PV
generator rating. You will find Sunways
NT Sundim on the enclosed CD ROM or
on our homepage www.sunways.de.
Prior to planning your system, please take
the following considerations into account:
· Mind the orientation of the modules.
In Central Europe, you will gain a maxi-
mum yield if the module has a horizon-
tal angle of 30° and the PV generator
field points directly towards the south.
· The warmer the module gets, the smal-
ler the output of the cells will be.
Therefore, make sure your PV generator
has sufficient back ventilation when you
install it.
· Check your PV generator for contami-
nation approximately every three years.
Contamination mostly occurs on the
lower edge of the module; it forms a
veil that is not even washed off by
heavy rain. A loss of yield can be pre-
vented by cleaning the modules with a
wet cloth or a brush.
· Make sure none of the modules or solar
cells of your system are in the shade.
That may lead to a significant loss of
yield.
· The NT 10000 has three internal energy
units that are supplied by three inde-
pendent PV generators. The NT 10000 is
based on the «MPP multitracking» prin-
ciple; i. e. each inlet has its own MPP
controller.
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Standard Components of a PV System
Depending on the recommendations of
your PV planner, your PV system is made
up of the following components:
PC
(3)
INVERTER
PV
PV
(1)
(2)
(4)
(1) PV generator switch
(2) Insolation sensor with
integrated temperature
probe
(3) Grid fuse
(4) Power meter
GRID
The PV generator switch is designed as a
DC switch-disconnector and is made for
disconnecting the PV generator from the
Solar Inverter.
Rating: at least 900 V, ≥16 A
Since the NT 10000 is supplied by three
independent PV generators, the DC main
switches must also be independently of
each other. It can be designed as a packet-
type switch, for example.
Standard components of the PV system
95
PV
(1)
(1)
Grid connection:
The NT 10000 is connected to the grid in
three phases. Each phase is internally con-
trolled and monitored independently of
the others.
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Structure of NT 10000 The Solar Inverter NT 10000 is made up of
three energy units that are controlled
independently of each other. Each energy
unit has its own DC inlet.
Energy Unit
Energy unit 1
Energy unit 2
Energy unit 3
DC Inlet
DC inlet 1
DC inlet 2
DC inlet 3
Control Circuit Board
Control circuit board 1
Control circuit board 2
Control circuit board 3
AC Grid Connection
Phase L1
Phase L2
Phase L3
The following illustration shows the con-
nection of the DC inlet and the layout of
the energy unit:
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Control circuit board 3
Control circuit board 2
Control circuit board 1
Interface circuit board
Underside of
the device
L1
L2
L3
N
PE
+
–
+
–
+
–
(1) (2) (3)
Energy unit 3
Energy unit 2
Energy unit 1
DC inlet AC grid
connection
Solar Inverter NT 10000
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Protection Concept
The micro controller continuously and
simultaneously monitors and displays the
following parameters. Numbers 1 to 3
refer to the energy units 1 to 3:
The numbering 1 to 3 refers respectively
to the performance unit 1 to 3:
98
Error No.
001
002
003
004
005
006
007
008
009
010
011
012
013
014
015
016
017
018
019
020
Description
DC overvoltage 1
DC overvoltage 2
DC overvoltage 3
Frequency fault 1
Frequency fault 2
Frequency fault 3
Overheating of heat sink 1
Overheating of heat sink 2
Overheating of heat sink 3
Grid undervoltage 1-phase 1
Grid undervoltage 1-phase 2
Grid undervoltage 1-phase 3
Grid overvoltage 1-phase 1
Grid overvoltage 1-phase 2
Grid overvoltage 1-phase 3
Grid undervoltage 3-phase
AFI fault 1
AFI fault 2
AFI fault 3
Insulation fault 1
Error
No.021
022
023
024
025
026
027
028
029
030
031
032
033
034
035
036
038
Description
Insulation fault 2
Insulation fault 3
DC injection 1
DC injection 2
DC injection 3
Isolated operation
Grid overvoltage 3-phase
Surge fault 1
Surge fault 2
Surge fault 3
Grid voltage 10 minutes mean value
> 10 percent Unominal 1
Grid voltage 10 minutes mean value
> 10 percent Unominal 2
Grid voltage 10 minutes mean value
> 10 percent Unominal 3
Control circuit board 1 fault
Control circuit board 2 fault
Control circuit board 3 fault
Back-up battery empty
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In case of an error, the current injection
is immediately stopped, and the grid relay
is triggered which disconnects the Solar
Inverter from the grid.
In addition, there are the following pro-
tection devices on the grid side and on
the PV generator side:
· Varistors on the grid side
They protect the power semiconductors
in case of high-power, temporary voltage
peaks in the grid, and they discharge the
throttle in case of disconnection from
the grid.
· Varistors on the PV generator side
Varistors offer protection from atmos-
pheric overvoltage (e. g. caused by
remote lightning strikes).
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2.0 Installation Instructions
100
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101
Electrical Safety
Prior to opening the housing, disconnect
the Solar Inverter from the electricity of
the grid and the PV generator.
After disconnection from the PV generator
and the grid, there is still lethal voltage
inside the Solar Inverter and at the
PV generator hubs for approximately five
minutes. It takes that long for the energy-
storing capacitors to fully discharge.
After having disconnected the Solar Inver-
ter from the grid and the PV generator,
wait at least five minutes before opening
the Solar Inverter.
Mechanical Safety
During assembly, make sure the cables
or connecting lines attached to the Solar
Inverter are installed safely and suitable
mechanical cable retaining devices (e. g.
cable channels) are used.
2.1 Safety Instructions
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!
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Cleaning Instructions
Prior to cleaning your PV modules, always
disconnect the PV system from the power
grid by opening the grid disconnecting
device (main fuse), and open the DC circuit
breaker on the PV generator to prevent
the risk of an electric shock.
Use a dry, soft cloth to clean your PV
modules. Never use caustic, solvent-based,
or scouring cleaning agents or polish.
Please observe the instructions of the
PV module manufacturer.
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!
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103
2.2 Basic Settings
Setting the Fixed Voltage Level
Your Sunways Solar Inverter is equipped
with a precise MPP control. If less than
200 watt are injected, the control of the
energy unit concerned operates at a fixed
voltage level. That prevents unnecessary
MPP searching. To minimise adjustment
losses during fixed voltage operation, the
fixed voltage level of each energy unit of
the Solar Inverter can be set separately.
The optimum fixed voltage level depends
on your PV generator model.
The fixed voltage can be set with the slide
switch «S100» on the control circuit board.
Ex works, the switch is set to «420V».
To set a fixed voltage of 540 V, slide the
switch to the «540V» position.
Fixed voltage
level
420 V
540 V
No-load voltage
PV generator at 25 °C
≤630 V
> 630 V
«420 V» position «540 V» position
Illustr.: Slide switch «S100» for setting the
fixed voltage level
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Country Settings
Please note that it takes different configu-
rations to operate Sunways Solar Inverters
in different countries. The setting can be
adjusted accordingly with the DIP switch
«S300» below the display circuit board.
Country ChangeSwitch position
Illustr.: DIP switch «S300» for changing the
country setting
104
Voltage
AFI
3-phase
10/15%
Germany
Spain
Voltage
AFI
3 phased
10/15%
· Opening time after power failure: 3
· Grid monitoring 1-phase
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