Sunways NT 10000, NT 11000, NT 12000 User Manual

English

EN

User Manual
Sunways Solar Inverter

NT 10000, NT 11000, NT 12000

2 NT 10000...NT 12000

NT 10000...NT 12000 I

Impressum

All rights reserved
© Copyright by:
Sunways AG
Photovoltaic Technology
Macairestraße 3 - 5
D-78467 Konstanz

Phone: [phone]

Fax: [phone]

EMail: [email protected]

Internet: www.sunways.de

This user manual may only be reprinted or copied in whole or in part with the express, written approval of Sun­ways AG. Any type of reproduction, distribution or storage on data carriers in any form and of any kind not au­thorised by Sunways AG represents a violation of the applicable copyright laws and will be prosecuted. We
reserve the right to make technical changes which serve to improve the unit, or which increase the safety stan­dard – even without separate prior notice.

Publisher responsible for the content: Sunways AG

This user manual contains products and product names which are registered trademarks. The mention of pro­ducts and product names is used only for information purposes and does not represent product misuse. The pas­sage referring to these products in this user manual does not represent original documentation of the respective
product.

Introduction

NT 10000...NT 12000 III

Introduction

Thank you for purchasing an NT series Solar Inverter from Sunways, an innova­tive, high-quality product with unique features and consistently high efficiency.

This Solar Inverter is equipped with HERIC

®

topology and enables operation
with a large number of solar modules and – as accustomed from Sunways – wi­thout the use of a transformer.

This user manual contains instructions for using the Sunways Solar Inverter and
explains its functionality. Information is provided on safety, installation, com­missioning, operation and system monitoring.

Please follow the safety instructions carefully to ensure increased safety at the
operating site of the Solar Inverter.

Introduction

IV NT 10000...NT 12000

V

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III

1 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 Integration into solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.4 Module description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.5 Delivery Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 General safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Explanation of symbols and warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Basic safety measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4 Safety concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.3 Installing the communication equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.1 Connecting and disconnecting Solar Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.2 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.2 System monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

6.3 Sunways Browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

A Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

A.1 Drilling template for the wall bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

A.2 General liability disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

VI

Product description

NT 10000...NT 12000 1

1 Product description

1.1 Intended use

The Sunways NT Solar Inverter is the link between your solar generator and the
public power grid. The energy from the connected solar generator is converted
to grid-compliant AC current and fed into the grid.

Solar modules which require earthing of the negative or positive terminal can­not be operated with the NT Solar Inverter. If in doubt, always ask your module
manufacturer about a release!

1.2 Functional description

Conversion from direct into al­ternating current

The NT Solar Inverter converts the direct current produced by the solar genera­tor into alternating current. The alternating current is then fed into the public
power grid as a three-phase current.

Operating and display ele­ments

Various interfaces are available for system configuration and monitoring:

 Control panel (LCD display and keyboard) for displaying operating and status

values or for inputting system parameters

 Operating LED

 Integrated web server for display and configuration via a web browser

Interfaces  Bus interface for connecting an analogue modem, ISDN modem or GSM/

GPRS modem

 Ethernet interface for connecting a PC or for integration in existing networks

 CAN bus interface for interconnecting several Solar Inverters

 S0 pulse output for controlling large displays

 Alarm relay for realising simple monitoring locally

 Interface for connecting an irradiance and temperature sensor

Data logging The NT Solar Inverter offers internal data logging for recording and saving sys-

tem data:

 5-minute mean values of voltages, currents, output, temperature and irradi-

ance (if sensor is installed)

 5-minute, daily, monthly and annual energy yield values

 5-minute maximum and minimum values for AC output, irradiance, system

output

 Memory for malfunction messages

Grid monitoring The NT Solar Inverter assumes the task of grid monitoring for the protection of

the unit and persons. In case of abnormal grid conditions, feeding is immedia­tely interrupted and the Solar Inverter disconnects from the grid by triggering
the grid relay.

Product description

2 NT 10000...NT 12000

Functions resulting from the
German Renewable Energy Act
and the Medium- and Low-Vol­tage Directive

The Solar Inverter hardware already meets the requirements of the new Medi­um- and Low-Voltage Directive and will support all functions via software up­date by the end of the transitional period.

The output control through the PSC required according to the German Renewa­ble Energy Act can be realised via the optional CAN power control box.

Solar Inverter configuration The basic configuration of the NT Solar Inverter is shown in the block diagram.

The solar generator voltage connected to the inverter input is converted to al­ternating current by the high-efficiency HERIC

®

inverter. A 5-core AC connec-

tion is used.

1.3 Integration into solar system

Solar generator configuration The technical data of the selected solar generator must match the Solar Inverter

specification (see Technical Data). Incorrect dimensioning can lead to reductions
in the yield and to destruction of the unit.

The Sundim design program from Sunways can be used for this purpose. Sun­ways Sundim can be found on the enclosed CD-ROM or on our website at http:/
/www.sunways.eu/de/.

Be sure to take the following points into account before planning your system:

 Watch the celestial alignment of the modules. In Central Europe a maximum

yield is achieved with a module tilt of 30° to the horizontal and direct south
orientation of the solar generator
field.

=

~

L1

L2

L3

PE

N

L1 L2 L3 PE N

–

+

DC+

DC–

HERIC

® inverter

Solar generator 2

Control and monitoring

Solar generator 1

Solar generator 3

+

+

–

–

DC+

DC–

DC+

DC–

Grid

Product description

NT 10000...NT 12000 3

 The cell output decreases as the module temperature increases. Install your

solar generator with sufficient ventilation at the rear.

 Check your solar generator approx. every three years for soiling. This occurs

especially on the lower edge of the modules and forms a haze that cannot
be washed off even by heavy rain. Yield reduction can be prevented by
cleaning the modules with a wet cloth or a brush.

 Avoid shading of individual modules or solar cells in your system. This can

lead to major reductions in yield.

Standard components of a so­lar system

Depending on the recommendations of your PV planning expert, your PV sys­tem consists of the following components:

1 Solar generator
2 Solar Inverter with integrated DC

load break switch

3 Mains fuse and energy meter

Options

4 Irradiance sensor with integrated

temperature sensor
5 PC for monitoring system
6large display

1

4

5

2

3

6

DC

AC

Product description

4 NT 10000...NT 12000

1.4 Module description

1Fan
2 Control panel with LCD display,

operating LED and console

3 DC Load Break Switch

4 DC terminals
5 Communication interfaces
6 Type label
7 AC connection

1.5 Delivery Scope

The delivery consists of:

 Sunways NT series Solar Inverter

 Wall bracket

 3 pairs of Tyco Solarlok plug-in connectors

 AC connector

 CAN terminating resistor connector (connected)

 Ethernet cable, 2 m (CAT 5e, 1:1)

 Warranty registration

 SETUP - quick reference guide

 CD-ROM, including Manual, Sunways Sundim design program, product and

service information

530

840

210

2

34 5 7

6

1

Product description

NT 10000...NT 12000 5

Checking delivery Before shipment our products are checked for proper condition. Despite care-

ful, recyclable packing, transport damage may occur, for which the transport
company is generally responsible.

Please check the delivered Solar Inverter thoroughly.

Should you discover damage to the packing or the Solar Inverter, please inform
the transport company immediately. Your specialist dealer will be happy to pro­vide assistance if required. Any damage report must be received by the trans­port company in writing no later than seven days after receipt of the goods.

Product description

6 NT 10000...NT 12000

Safety precautions

NT 10000...NT 12000 7

2 Safety precautions

2.1 General safety precautions

Follow the instructions in the
operating manual.

Safe handling and trouble-free operation of the NT Solar Inverter requires
knowledge of the basic safety precautions.

This user manual contains the most important information for operating the
system safely.

Each person concerned with the installation, commissioning, maintenance and
operation of the Solar Inverter must have read and understood the entire user
manual, and in particular the chapter entitled Safety Precautions.

In addition, the rules and regulations for accident prevention applicable for the
operating site/plant must be observed.

Risks associated with handling
the NT Solar Inverter

The Solar Inverter has been built in accordance with state-of-the-art technology
and the recognised safety rules and may only be used

 for its intended purpose and

 in safe condition.

Improper use may lead to dangers to the life and limb of the user or others, or
can adversely affect the system or other property.

In case of malfunctions which can impair safety, the system must be shut down
immediately and secured against being switched on again. The malfunction
must then be eliminated immediately.

Warranty and liability The General Terms and Conditions of Sale and Delivery of Sunways AG always

apply. Warranty and liability claims for injuries and damage shall not be accep­ted if they are due to one or more of the following causes:

 Improper use of the Solar Inverter

 Improper installation, commissioning, operation and maintenance

 Operation of the Solar Inverter with defective and/or non-operational safety

and protective equipment

 Failure to observe the information in the user manual regarding installation,

commissioning, operation and maintenance

 Unauthorised modifications

 Inadequate monitoring of wearing parts

 Improper repairs

 Emergencies caused by external influence or force majeure

 Opening the cover and removing the safety seal without prior permission

from Sunways AG

Safety precautions

8 NT 10000...NT 12000

2.2 Explanation of symbols and warnings

The following warnings and symbols are used to help you quickly understand
this manual and safely use the Solar Inverter.

Warnings used in this user ma­nual

DANGER

This symbol indicates an immediate danger which will result in death, injury or
serious damage if the applicable safety regulations are not followed.

DANGER
Danger of death through electric shock!

This symbol indicates an immediate danger from electric shock which will result
in death, injury or serious damage if the applicable safety regulations are not
followed.

CAUTION
CAUTION

This symbol indicates an immediate danger which can result in damage if the
applicable safety regulations are not followed.

Symbols used in this user ma­nual

NOTE
Information

This symbol indicates important information which contributes to a better un­derstanding of the Solar Inverter.

Warnings and symbols on unit The following warnings on the housing of the Solar Inverter point out dangers.

Always observe the warnings exactly.

This symbol indicates that the user manual must be read and understood before
putting the unit into operation.

Hot surface! The housing can heat up during operation.

Always disconnect the unit from the mains supply and the PV generator before
opening the cover. The unit still carries life-threatening voltage for approx. five
minutes internally and at the connection terminals of the PV generator fol­lowing disconnection from the PV generator. The energy storage capacitors are
not completely discharged until after this time. You must wait at least five mi­nutes after disconnecting the unit from the mains supply and from the PV ge­nerator before opening the unit.

Safety precautions

NT 10000...NT 12000 9

WARNING

High leakage currents. Be sure to make an earthing connection before connec­ting the power supply circuit (AC system).

2.3 Basic safety measures

Electrical work on the Solar Inverter must be conducted by a qualified electrici­an while observing the VDE regulations, national and other regulations!

The Solar Inverter may only be opened by persons who are authorised by Sun­ways AG.

When circuit breakers are tripped, the cause of the fault must be determined
and eliminated before returning the unit to operation.

Check electrical equipment regularly.

Retighten any loose connections.

Replace damaged lines/cables immediately.

2.4 Safety concept

The following parameters are monitored and displayed continuously and simul­taneously by the inverter controller:

 DC overvoltage

 Overvoltage L1, L2, L3

 Undervoltage L1, L2, L3

 Over-/underfrequency L1, L2, L3

 Surge error (brief overvoltage L1, L2, L3)

 DC share in AC current

 AFI residual current

 Overtemperature of heat sink

When a malfunction occurs, feeding is immediately interrupted and the Solar
Inverter disconnects from the grid by triggering the mains relay.

The potential-free alarm relay is activated.

If a residual current occurs on the DC side, only the affected power unit switches
off. The same applies in th event of an insulation fault: Only the power unit in
which the fault occurred switches off. The other power units continue operating
normally.

Warning! High leakage current,
earth connection essential before
connecting supply.

Safety precautions

10 NT 10000...NT 12000

In addition, the following protective equipment in accordance with overvoltage
category III is provided on the grid and the solar generator side:

 Grid-side varistors

These protect the power semiconductors in case of high-energy, short-term
voltage peaks in the grid and dissipate the energy in the choke in case of a
grid disconnection.

 Generator-side varistors

Varistors offer protection against atmospheric overvoltages (e.g. caused by
remote strikes during thunderstorms).

Technical data

NT 10000...NT 12000 11

3 Technical data

Model NT 10000 NT 11000 NT 12000

Article no. SI310NT0C SI311NT0C SI312NT0C

DC input

Rated DC output 10500 W 11550 W 12600 W

Maximum DC current 11.0 A per MPP input 11.5 A per MPP input 12.8 A per MPP input

Nominal DC voltage 340 V

MPP voltage range 340 V…750 V

Maximum DC voltage 900 V

Number of DC connections per MPP
tracker

1 x Tyco Solarlok

Number of MPP trackers 3

AC output

Rated AC output 10000 W 11000 W 12000 W

Maximum AC output 10000 W 11000 W 12000 W

Nominal AC current 14.5 A per phase 16.0 A per phase 17.4 A per phase

Maximum AC current 16.0 A per phase 17.5 A per phase 19.0 A per phase

Nominal frequency 50 Hz

Frequency range 47.5 Hz…50.2 Hz (according to DIN VDE 0126-1-1)

Grid voltage 400 V

AC voltage range -20% to +15% (according to DIN VDE 0126-1-1)

Distortion factor < 1%

Power factor (Cos Phi) 1 or configurable between -0.9 and +0.9

Grid voltage monitoring three-phase (according to DIN VDE 0126-1-1)

Earth fault protection RCD (according to DIN VDE 0126-1-1)

Insulation, frequency and DC cur­rent monitoring

integrated according to DIN VDE 0126-1-1

Required phases for grid connec­tion

3 (L1, L2, L3, N, PE)

Number of feed-in phases (230 V
single-phase)

3

Performance data

Stand-by consumption 9 W

Night-time consumption ~0 W

Maximum efficiency 97.6% 97.6% 97.6%

Max. European efficiency 97.3% 97.2% 97.2%

MPP efficiency (static) > 99%

Circuit type HERIC

®

topology, transformerless

Technical data

12 NT 10000...NT 12000

Other features

DC switch according to
IEC 60947-1/3

integrated

Grid-connection fuse layout 3 x 25 A

Data interfaces Ethernet, CAN, RS485, potential-free signalling relay, S0, modem

Sensor interfaces irradiance, temperature

Display LCD dot matrix, backlit, 128 x 64 pixels

System monitoring Automatic alarms via e-mail, Sunways Browser, Sunways Portal

IP rating according to IEC 60529 IP 54

Max. relative humidity 95%

Cooling Forced ventilation via external fans, temperature-controlled

Ambient temperature -25°C to 50 °C (at full

load)

-25°C to 45°C (at full
load)

-25°C to 40 °C (at full
load)

Overload characteristics Working point adjustment

Dimensions (height x width x
depth)

84 x 53 x 21 cm

Weight 31 kg

Installation type Wall installation

Noise level < 60 dB (A)

Warranty

Standard warranty 5 years

Warranty extension to 10 years Art. No. SV101020A

Warranty extension to 15 years Art. No. SV101050A

Warranty extension to 20 years Art. No. SV101080A

Warranty extension to 25 years Art. No. SV101110A

Certificates CE, DIN VDE 0126-1-1

Model NT 10000 NT 11000 NT 12000

Article no. SI310NT0C SI311NT0C SI312NT0C

Installation

NT 10000...NT 12000 13

4 Installation

4.1 Mechanical installation

Requirements for installation
location

DANGER

 The Solar Inverter must not be installed in areas subject to explosion hazards.

 The Solar Inverter must not be exposed to caustic gases.

 No combustible materials must be stored within 3 metres of the Solar Inver-

ter.

Protection against moisture
and foreign bodies

 The high IP54 protection rating allows installation indoors and in roof-co-

vered areas outdoors. However, the Solar Inverter may not be directly expo­sed to rain.

Mechanical load-bearing capa­city

 Note during installation that the Solar Inverter weighs 31 kg. The installation

surface must be firm and able to carry this weight in the long term.

Thermal interaction  The installation surface must consist of flame-retardant material (not suitab-

le: wood or plastic surface; suitable: concrete and masonry), as the frame of
the Solar Inverter can heat up to a maximum of 70°C.

 A minimum distance of 300 mm to other units, cabinets, ceilings, cable ducts,

etc. must be maintained above, below and to the sides of the housing (see
diagram).

 The Solar Inverter must be installed upright to enable adequate free convec-

tion.

>300 mm

>350 mm

300 mm

300 mm

300 mm

300 mm

Ceiling

hot
air

cold

air

Wall

Installation

14 NT 10000...NT 12000

 Solar inverters may not be stacked in order to prevent excessive warming. In

particular, due to the introduction of cold air from the left side, these devices
must not be suspended above one another in a laterally offset manner.

 Ensure sufficient heat dissipation when installing the Solar Inverter in a

switch cabinet or closed room.

 The ambient temperature must be within the range -25 to +40 °C. At ambi-

ent temperatures above 40°C, the inverter automatically reduces its output.

 The Solar Inverter should not be exposed to direct sunlight to protect it from

unnecessary external warming.

Installation

Proceed as follows to install the Solar Inverter:

1. Hold the wall bracket at the point at which you want to attach the Solar In­verter and mark the mounting holes.

2. Drill the holes with a 10 mm dia. drill bit. A drilling template with precise
dimensions can be found in the appendix.

3. Install the wall bracket with suitable screws and wall plugs depending on
the surface condition.

4. Release the retaining screws for the Solar Inverter at the top on both sides
with an Allen key.

hot air hot air

cold air

cold air

hot air

hot air

Installation

NT 10000...NT 12000 15

5. Insert the retaining bolts found at the rear (top) of the Solar Inverter into
the openings of the mounting frame.

6. Secure the Solar Inverter by retightening the retaining screws.

4.2 Electrical installation

Solar generator connection

DANGER
Extreme danger from electric shock!

 Touching live parts can result in death.

 All electrical work must be carried out by a qualified electrician while obser-

ving the VDE regulations, national and other regulations.

 Execute the direct current wiring in accordance with the system dimensio-

ning of your planning expert.

 Prepare all solar generator cables before connecting the solar generator to

the Solar Inverter.

 Check each solar generator string for proper operation with an open-circuit

voltage and short-circuit current measurement.

 Check the rating plate on the Solar Inverter to ensure that it is approved for

the maximum solar generator voltage.

 The positive and negative lines must be kept electrically separate from the

earth potential.

 Touchable, live parts of the solar generator (e.g. metal frame, carrying struc-

ture, etc.) must be earthed (connection with PE).

 Check the solar generator for freedom from short-circuits to earth.

Installation

16 NT 10000...NT 12000

 Before connecting the solar generator to the Solar Inverter, open the integ-

rated DC load break switch (position 0).

 After the solar generator is connected to the Solar Inverter and the DC load

break switch is switched on, the direct generator voltage is present inter­nally.

 The connectors must not be separated under load.

 Always disconnect the mains connection first by switching off the correspon-

ding mains fuse and before disconnecting the solar generator side by ope­ning the DC load break switch.

Overview The solar generator can be directly connected to the Solar Inverter with three

strings. The connection is made via the shockproof Tyco Solarlok plug-in connec­tion system accessible from outside.

The Solar Inverter has three independent DC inputs, which are arranged in pairs
on the underside.

NOTE

 The Solar Inverter consists of three power units that are controlled indepen-

dently. Each power unit has its own DC connection.

 No external DC load break switch is required. A DC load break switch as re-

quired in accordance with DIN VDE 0100-712 is integrated in the Solar Inver­ter.

1 Terminals for solar generator

string 1

2 Terminals for solar generator

string 2

3 Terminals for solar generator

string 3

4 DC Load Break Switch

Tyco Solarlok plug connector
system

The Solarlok plug connector system is designed for convenient, reliable connec­tion of individual solar generators and the Solar Inverter.

Components The following connectors are used:

Positively coded connector

4

-

+

3

2

1

Installation

NT 10000...NT 12000 17

Negatively coded connector

Neutral connector

NOTE

The neutral connector can be used to connect both positively and negatively
coded sockets.

Installation

DANGER
Extreme danger from electric shock!

 Touching live parts can result in death.

 All electrical work must be carried out by a qualified electrician while obser-

ving the VDE regulations, national and other regulations.

 Tyco Solarlok connectors are only approved for connection on permanently

installed lines.

 Only Tyco Solarlok crimping pliers may be used to crimp the connectors.

 During preassembly, the connectors must be separated from all other volta-

ge sources.

 The connectors must not be separated under load. First interrupt the circuit

at a suitable point.

 Provide the lines with corresponding stickers as close as possible to the con-

nectors to prevent confusion.

NOTE

 Any kind of soiling (dust, moisture, etc.) has a negative effect on the connec-

tor system with regard to function over the intended period of use. This par­ticularly applies to the suitability for use of the seals and the crimping of the
contacts. Therefore, extreme care must be taken to achieve proper proces­sing during assembly.

 Various circular contacts are used for different conductor cross-sections with

the Tyco Solarlok connectors. The correct tool insert must be used in ac­cordance with this cross-section. The included Tyco Solarlok connectors are
equipped with circular contacts for a cable cross-section of 4 mm

2

.

 The seals and clamping baskets used in the preassembled connectors are ap-

proved for cable sheath diameters from 4.5 mm to 6.9 mm. Special seals and
clamping baskets must be used for cables with a sheath diameter greater
than 6.9 mm.

 The Tyco Solarlok crimping pliers can be purchased from your sales partner.

Installation

18 NT 10000...NT 12000

The following sequence must be observed during assembly:

1. Strip the voltage-free line.

2. Crimping on the circular contact with the Tyco Solarlok hand crimping
pliers.

3. Slide the cable gland onto the cable and engage the contact in the connec­tor housing.

4. Tightening the cable gland with 1.5 Nm.

Handling The positive/negative coded connectors are marked with polarity symbols and a

coloured ring (blue = negative, red = positive. They are equipped with coding
ribs for assignment, which ensure that only connectors of the same polarity can
be connected to each other.

Connecting socket and plug:

For the system to be locked properly the locking hooks must be recessed flush
in the mating piece.

CAUTION

The connectors must not be separated under load. First interrupt the circuit at
a suitable point.

Release the locking device by pressing on the ribbing of the locking hooks and
pulling.

Connection example:

8

Installation

NT 10000...NT 12000 19

1 Solar module box
2 Negatively coded socket
3 Negatively coded plug

4 Positively coded socket
5 Neutral connector
6 Solar Inverter

Grid connection

DANGER
Danger of death through electric shock!

 Touching live parts can result in death.

 All electrical work must be carried out by a qualified electrician while obser-

ving the VDE regulations, national and other regulations.

 Observe the pin assignment of the AC bayonet connector. An incorrect as-

signment can result in the unit being destroyed.

 No consumers may be connected to the supply line from the Solar Inverter to

the mains fuse.

 Always disconnect the mains connection first by switching off the correspon-

ding mains fuse and before disconnecting the solar generator side by ope­ning the DC load break switch.

NOTE

If the voltage on the AC connection exceeds the permissible value due to a long
line length or an insufficient cable cross-section, the Solar Inverter will be dis­connected from the grid. In power grids with a low output and a high solar ge­nerator output, this can lead to individual Solar Inverters being switched off and
then on again several times.

1

1

1

6

5

2

5

2

5

4

4

2

2

3

N

+

Installation

20 NT 10000...NT 12000

Overview An AC bayonet connector on the underside of the unit is used for the five-wire

grid connection (L1, L2, L3, N, PE) of the Solar Inverter. Three-phase feed-in is
used.

1 DC Load Break Switch 2 AC connection

A corresponding circuit breaker is recommended as a line protection element in
the grid feed direction:

NT 10000: 3 x 25 A
NT 11000: 3 x 25 A
NT 12000: 3 x 25 A

with B type bracket

A three-pin circuit breaker or individual fuses can be used.

NOTE

 Due to the fact that three-phase feed is used a three-phase meter must be

used.

 Some grid operators require the use of a reverse-current-capable meter.

AC bayonet connector The AC bayonet connector is approved for cable sheath diameters between 13

mm and 20 mm.

The following sequence must be observed during assembly:

1. Strip the voltage-free line and the cable ends.

2

1

PE N L3 L2 L1

1

4

3

2

Mains fuse

INVERTER

10

52,5 (PE 55)

Installation

NT 10000...NT 12000 21

NOTE

For lines with a cable sheath diameter from 16 to 20 mm, the cable gland must
be adapted accordingly. To do this, cut out the inner section of the blue sealing
ring.

2. Slide the cable gland and the plug housing onto the cable.

3. Connect the cable ends to the plug terminals in accordance with the pin as­signment. Tightening torque: 0.7 Nm.

CAUTION

Observe the pin assignment of the AC bayonet connector. An incorrect assign­ment can result in the unit being destroyed. The diagram shows the connections
inside the AC connector, as indicated by the cut-out at the PE connection.

1 = N (neutral conductor)
2 = L1 (feed-in phase)
3 = L2 (feed-in phase)

4 = L3 (feed-in phase)

= PE (protective earth conductor)

4. Screw plug housing to plug. To do this, push the outer ring of the plug to­ward the connector housing. Tightening torque: 1-2 Nm.

5. Tighten the cable gland.

Tightening torque for cable sheath diameters between 13 and 20 mm: 6 to
8 Nm

NOTE

Make sure the line is provided with a strain relief device. When using cables
with a diameter of less than 16 mm, the line must be relieved just behind the
connector.

1

2

4

3

The diagram shows the
connections inside the AC
connector, as indicated by the
cut-out at the PE connection.

Installation

22 NT 10000...NT 12000

4.3 Installing the communication equipment

The interfaces are located behind the weatherproof connection box on the un­derside of the Solar Inverter.

To open the connection box, loose the centre screw. Then carefully pull way the
box toward the front.

After you have installed the connection cable, close the box again by guiding
the locking hooks into the notches in the housing and then pressing the box
onto the housing.

Retighten the mounting screw.

Interface overview

1 Ethernet connection
2 Modem connection
3CAN IN
4CAN OUT
5 S0 interface (pulse output, e.g. for

large display)

6 Terminal for temperature and irra-

diance sensor
7 RS485 interface
8 Terminal for alarm relay

Pin assignment

The connectors for the CAN interfaces CAN IN and CAN OUT and for the modem
interface have the following pin assignment:

CAN and modem

2

1 3 4 8765

CAN modem

Pin Description Meaning Description Meaning

1N.C. >1 TXh

Ethernet Modem CAN CAN

2

1346578

2

1346578

2

1346578

Installation

NT 10000...NT 12000 23

Networking Solar Inverters via
CAN bus

Solar Inverters from the NT, AT und PT series can be networked via the CAN bus
interface. Use the included Ethernet cable to network the Solar Inverters with
each other. Connect a terminating resistor at the first and last Solar Inverter in
the series. The pluggable terminating resistors are included in the delivery.

1 Terminating resistor connector

The total length of the CAN bus depends on the selected bit rate. The following
table shows the possible bit rates and the resulting bus lengths.

Solar Inverters of the PT series are delivered with a default setting of 125 kbit/s.
The default setting for Solar Inverters of the NT and AT series is 500 kbit/s.

2 CAN_GND 0 V / GND >2 TX1

3 CAN_H Bus line (domi-

nant high)

<3 RXh

4 CAN_L_T Termination -4 VCC

5 CAN_H_T Termination -5 GND

6 CANL Bus line (domi-

nant low)

<6 RXI

7 CAN_SHLD Optional CAN

shield

<7 R1h

8N.C. <8 R1I

CAN modem

Pin Description Meaning Description Meaning

11

Bit rate Bus lengt

100 kbit/s 650 m

125 kbit/s 500 m

250 kbit/s 250 m

500 kbit/s 100 m

Installation

24 NT 10000...NT 12000

NOTE

When Solar Inverters from different series are networked the bit rate in all units
must be identical. The rate can be set via the Solar Inverter display or the Sun­ways Browser.
Einstellung der Bitrate über das Display-Menü: Einstellungen - Vernetzung ­CAN-BUS - Baudrate

Up to 99 NT, PT and AT series units can be networked via a CAN bus. The fol­lowing table shows the recommended cable cross-sections depending on the
bus length and the number of nodes:

In cases where the values specified in the table cannot be adhered to, a CAN
bridge for boosting the signal must be installed, through which the length of
the CAN bus can be extended by up to 500 m. The requirement to install a CAN
bridge is therefore determined by the bus length, the number of nodes and the
cable cross-sections.

The CAN bridge is available from Sunways. For further information please con­tact the Technical Hotline.

The CAN bridge subdivides the bus into two physically independent segments.
The maximum cable length of each segment is determined by the set bit rate.

Bus length/Number of
nodes

32 64 99

100 m 0.25 mm² or

AWG 24

0.25 mm² or
AWG 24

0.25 mm² or
AWG 24

250 m 0.34 mm² or

AWG 22

0.5 mm² or
AWG 20

0.5 mm² or
AWG 20

500 m 0.75 mm² oder

AWG 18

0.75 mm² or
AWG 18

1.0 mm² or
AWG 16

CAN bus

Inverter

XX

Inverter

XX

Inverter

XX

CAN Bridge

Network length / number of nodes /
cable cross-section outside the table values
1 or several CAN bridge(s)

Installation

NT 10000...NT 12000 25

With a bit rate of 125 kbit/s two segments with a maximum length of 500 m
each are possible. The total line length can therefore be up to 1 km under ideal
conditions.

In systems with Solar Inverters from the PT series the CAN bridge can be integ­rated directly in the PT Solar Inverter and supplied via the 24 V DC power supply
unit of the inverter. In systems with AT Solar Inverters and units from the new
NT series (900 V) the CAN bridge can be integrated in the AC distribution. In this
case an external 24 V DC supply is required (power consumption 1.5 W).

Networking Solar Inverters via
RS485 interface

For joint monitoring of a solar system with Sunways Solar Inverters from the ol­der NT generation (750 V or 850 V) you can use the RS485 interface integrated
in the Solar Inverters. The system networked with the RS485 interface can be
monitored with the Sunways Communicator.

NOTE

 Use a twisted pair cable to network the Solar Inverters with each other.

 Mount the terminating resistor on the last Solar Inverter.

NT 8000 / 10000: Jumper RS485MATCH

NT 2600 to NT 6000: Jumper JP400

S0 interface The S0 pulse output enables, for example, the connection of a large display

(Sunways Display) for displaying the momentary output, the energy yields and
the CO

2

reduction.

You can use the S0 interface on the main unit if you want to transmit the entire
line yields as a sum to a large display.

The S0 interface is adjusted via the display on the inverter. Go to Settings - Net­work - Interfaces.

RS485GND

RS485+

RS485–

RS485GND

RS485+

RS485–

RS485+

RS485–

RS485+

RS485–

NT 8000
NT 10000

NT 2600...
NT 6000

NT (900 V)
or AT

NT (900 V)
or AT

Sunways
Communicator

Installation

26 NT 10000...NT 12000

NOTE

 Please note that the maximum pulse rate may not be greater than 15 pulses/

sec. Calculate the pulse rate depending on the size of the solar system using
the following formula:

Pulse rate [pulses/kWh] = 50,000 / system size [kWp]

 The pulse rate must be set on your Solar Inverter and on the large display.

Temperature and irradiance
sensor

The optional addition of an irradiance sensor (model Si-01TC-K from Ingenieur­büro Mencke & Tegtmeyer) with an integrated PT-100 temperature sensor for
temperature measurement enables the acquisition of irradiation data and the
corresponding module temperature and storage in the internal data memory as
a 5-minute mean value. This additional measuring unit helps analyse the system
output. Based on the values, any errors on the PV generator, e.g. shading or fai­lure of solar cells, can be detected.

The sensor is activated via the display. In the menu Settings - Network - Inter­faces you can select the sensor type in the Irrad. and Temp. field.

Assignment of sensor connection

Sensor connector
pin assignment

Sensor connection designation Solar Inverter

connection designati­on

Pin 1 Positive-signal temperature Temp

Pin 2 Positive-signal

irradiance

Solar

Pin 3 Reference earth V-

Pin 4 Plus connection for

+5 V supply

V+

Installation

NT 10000...NT 12000 27

Connecting the alarm relay The Solar Inverters are equipped with a potential-free alarm relay as standard.

The relay can be designed as a make-contact element or as a break-contact ele­ment and is actuated for all malfunctions signalled by the device. This ensures
fast, reliable indication of a possible fault in the PV system on site. For PV sys­tems with several Solar Inverters the individual relays can be switched in parallel
and connected via a common indicator lamp.

The main unit also signals faults from other units in the CAN network via the
alarm relay. It is therefore sufficient for simple alerting to connect the alarm re­lay of the main unit.

CAUTION

The alarm relay is designed for 230 V/2 A. Higher outputs/voltages can result in
the relay being destroyed. The connected signalling unit must be fused separa­tely. The terminals are intended for a cable cross-section of 0.2 mm

2

to 1.5 mm2.
When dimensioning the cross-section, also take the current consumption of the
connected signalling unit into account.

Wiring diagram for a single unit

Wiring diagram for several units

1 Indicator lamp, red 2 Indicator lamp, green

NOTE

The Solar Inverter is supplied by the feed phases from the AC grid. If all feed
phases fail simultaneous, the alarm relay cannot respond, despite the fact that
there is a fault.

~

12

NO

NO

NC

NC

C

C

~

12

NO

NO

NC

NC

C

C

NO

NO

NC

NC

C

C

Installation

28 NT 10000...NT 12000

Commissioning

NT 10000...NT 12000 29

5 Commissioning

5.1 Connecting and disconnecting Solar Inverter

CAUTION

 Ensure proper mechanical and electrical installation before commissioning

the Solar Inverter.

 Check the cables to ensure that they are in sound condition.

 Always disconnect the mains connection first by switching off the correspon-

ding mains fuse and before disconnecting the solar generator side by ope­ning the DC load break switch.

 The Tyco Solarlok connectors on the solar generator side must not be discon-

nected under load. First turn the DC load break switch to position 0.

NOTE

The Solar Inverter is supplied from the grid. The Solar Inverter switches on au­tomatically when sufficient solar generator output is available. Corresponding
switch-on and switch-off thresholds have been defined for this purpose.

Connecting 1. Establish the grid connection via the external circuit breaker.

2. Switch on the solar generator voltage by closing the DC load break switch

(switching position 1). The Solar Inverter starts operating when the input
voltage level is adequate.

1 DC Load Break Switch

The operating LED lights up in accordance with the operating state.

The commissioning menu opens when the Solar Inverter is connected for the
first time.

Disconnecting 1. Interrupt the grid connection by switching off the circuit breaker.

2. Disconnect the solar generator side by opening the DC load break switch

(switch position 0).

5.2 Commissioning

The commissioning menu comes up automatically when the Solar Inverter is
connected for the first time. It helps you make the standard settings.

1

Commissioning

30 NT 10000...NT 12000

NOTE

For a better understanding of keyboard operation, please also see the chapter
Operation.

The procedure for commissioning the Solar Inverter as a

 single unit

 and as a main unit and secondary units with several networked units

is described in detail below.

Please note:

Once the system has been commissioned, the country can no longer be changed
via the menu. To change the country retrospectively, please contact the Techni­cal Hotline on
Tel [phone].

Commissioning single unit

System with one Solar Inverter

1. The commissioning process starts with setting of the display language. Se­lect the language in selection menu with / .

Confirm the selected language with .

2. Select the country in the selection menu with / .

3. Confirm the country of installation with .

NOTE

The Solar Inverter only starts feeding current into the grid once the country has
been selected.

Single device

Commissioning

NT 10000...NT 12000 31

4. Select "Single unit" in the selection menu with / .

Confirm with .

5. Set the date and time.

Select the time with . Change the selected number with / and
jump to the next number with / .

Apply the set time with and set the date accordingly.

Apply the set date with .

NOTE

Please note that time settings should only be made with caution, as they directly
affect data logging. For example, if you set the time back by 1 hour, then the
existing data will be overwritten.

6. Setting a password. Select Password with . Default password is:

********

A new password can be set with / / / as an option.

Confirm the password with .

NOTE

Please note:
Only digits between 0 – 9 and letters between a – z and A – Z are permitted.
The password always has 8 characters. If the password you entered has less than
8 characters, the remaining characters are filled with *.
Example:
Your password is "Solar". This password has 5 characters. The system automati­cally appends three *, so that the password becomes "Solar***".

7. Completion of commissioning.

Confirm overview with .

Commissioning several net­worked units

System with several Solar In­verters

Master Slaves

Commissioning

32 NT 10000...NT 12000

Before commissioning, all units must be interconnected via the CAN bus inter­face. See the chapter on Networking Solar Inverters via CAN bus.

Switch on all units following installation. Start commissioning with the unit you
selected as the main unit.

Compatibility between Sun­ways Solar Inverters

The following table provides an overview of which devices can be networked
with each other and how, and lists any special considerations:

Commissioning

NT 10000...NT 12000 33

Commissioning main unit

1. The commissioning process starts with setting of the display language. Se­lect the language in selection menu with / .

Confirm the selected language with .

2. Select the country in the selection menu with / .

NT series (900 V) PT series AT series NT series (850 V)

NT series
(850 V)

with RS485:

 Sunways Portal:

with Sunways
Communicator

NT with RS485 / PT
with CAN bus:

 Sunways Portal:

connect NTs with
Sunways Commu­nicator, PTs with
Sunways Modem
or DSL/network
to the Internet

 Sunways Browser:

only available for
PT

with RS485:

 Sunways Portal:

with Sunways
Communicator

 Sunways Monitor

with RS485:

 Sunways Portal:

with Sunways
Communicator

 Sunways Monitor:

with interface
converter

AT series with separate

CAN networks:

 Sunways Browser
 Sunways Portal:

NT devices (900 V)
must be operated
in a separate CAN
network with in­dependent main
unit

with CAN bus:

 Sunways Browser
 Sunways Portal
 The PT Solar In-

verter must be
the main unit.

with CAN bus:

 Sunways Browser
 Sunways Portal

PT series with separate

CAN networks:

 Sunways Browser
 Sunways Portal:

NT devices (900 V)
must be operated
in a separate CAN
network with in­dependent main
unit

with CAN bus:

 Sunways Browser
 Sunways Portal

NT series
(900 V)

with CAN bus
(CANopen/CiA437):

 Sunways Browser
 Sunways Portal

Commissioning

34 NT 10000...NT 12000

3. Confirm the country of installation with .

NOTE

The Solar Inverter only starts feeding current into the grid once the country has
been selected.

4. Select "Main unit" in the selection menu with / .

Confirm with .

NOTE

The other units in the CAN network are automatically configured as secondary
units.

5. Set the date and time centrally for all connected units.

Select the time with . Change the selected number with / and
jump to the next number with / .

Apply the set time with and set the date accordingly.

Apply the set date with .

NOTE

Please note that time settings should only be made with caution, as they directly
affect data logging. For example, if you set the time back by 1 hour, then the
existing data will be overwritten.

6. Device search at the main unit.

The IDs for the secondary units can be allocated automatically or manually.
When manual ID allocation is selected the ID must be requested at the se­condary unit. With automatic ID allocation this step is not required, since
the device IDs are assigned automatically.

The following display appears during the device search:

Units = total number of units found in the CAN network

In network = number of configured units

After the main unit has found all connected secondary unit, these must be
configured before commissioning of the main unit is continued.

Commissioning

NT 10000...NT 12000 35

Confirm with .

NOTE

Depending on the side of the network, it may take a moment until the main
unit has found all secondary units and added them to the list.

7. Set password centrally for all connected units. Select Password with .

Default password is:

********

A new password can be set with / / / as an option.

Confirm the password with .

NOTE

Please note:
Only digits between 0 – 9 and letters between a – z and A – Z are permitted.
The password always has 8 characters. If the password you entered has less than
8 characters, the remaining characters are filled with *.
Example:
Your password is "Solar". This password has 5 characters. The system automati­cally appends three *, so that the password becomes "Solar***".

8. Completion of commissioning

Confirm overview with .

Commissioning secondary
units

The procedure for commissioning secondary units depends on the type of device
search. Once a main unit has been defined and manual ID allocation was selec­ted (e.g. for systems with AT and PT), each secondary unit automatically displays
a CAN ID request.

If automatic ID allocation was selected on the main unit, this step is skipped. In
this case completion of commissioning must be confirmed with at each se­condary unit.

1. For manual device search only: Request CAN ID. Request the next higher
free ID from the main unit with or the next lower free ID with .

The main unit assigns a free ID to the secondary unit. Confirm the ID within
5 seconds with .

Request further IDs with / .

Confirm the CAN ID with within 5 seconds.

Commissioning

36 NT 10000...NT 12000

NOTE

The data for the individual secondary units can be assigned in the Sunways
Browser and in the menu of the main unit based on the IDs.
The CAN-ID 1 is automatically assigned to the main unit. This means the secon­dary units can be assigned IDs from 2 to 99.
Commissioning cannot be continued until after an ID has been requested from
the main unit.

2. Completion of commissioning

Confirm overview with .

3. Commissioning all other secondary units as described above

Later commissioning If you add new units or replace existing ones in your solar system, then you can

display the unit list in the display on the master under Settings - Network - CAN
bus. The new unit can then be put into operation in accordance with the de­scription for commissioning slaves.

Operation

NT 10000...NT 12000 37

6 Operation

6.1 General information

Operating elements

Operating field The Solar Inverter is operated via the control panel at the front.

1 LCD display (lighted)
2 Operating LED

3Keyboard

LCD display A graphics-capable, monochrome dot matrix display is integrated in the opera-

ting field. In standard mode the momentary output, daily yield and status are
displayed. The bar graph shows the energy feed-in of the current day.

Press any key to activate the display lighting.

If no key is pressed for approx. 1 minute, the display lighting goes out.

NOTE
Important!

The LCD display is not a calibrated measuring device. A deviation of several per­cent is inherent in the system. Exact accounting of the data with the power sup­ply company requires a calibrated meter.

Keyboard The keyboard can be used to navigate in the menu, edit text fields, select entries

from lists and enter numbers consecutively and digit by digit. User entries can
only be made if the value to be changed is selected. The cursor changes visibly
in the editing mode and indicates the digit to be changed.

Operating LED The combined red/green LED indicates the status of the Solar Inverter:

 LED off

123

Solar Inverter NT

button Scroll up

button Scroll down

button Select menu item

button Back one menu level

button Select a menu item and confirm your entry

button Quit

Operation

38 NT 10000...NT 12000

Solar inverter is not active (night mode)

 LED green, continuously lit

Solar inverter is active and feeds into power grid (MPP mode)

 LED green, flashing

Solar inverter is active and feeds into power grid, although with current, out­put or temperature limitation

 LED red, continuously lit

A fault has occurred (malfunction)

 LED red, flashing

Warning

Standard screen (single unit) The standard screen is always shown when no keyboard entry is made for more

than 1 minute. It can also be called up manually with the menu item Solar Inver­ter – Instantaneous Values.

The standard screen shows the most important data at a glance. In the first line
you see the momentary feed-in power. In the second line the fed-in energy for
the day is shown.

The status signals the unit status with the following messages:

MPP Feeding in MPP mode

OK All networked devices are feeding in

AC cur.lim. Feeding with AC current limitation

AC cur.lim. Feeding with DC current limitation

Temp.lim. Feeding with temperature limitation

Output lim. Feeding with output limitation

Feed. Feed

Warning A warning has been output

Error An error has occurred

Night Night mode

Start Device initialisation phase

COM-Upd The communication software is being updated

Reg.Upd. The control software is being updated

Ueb.Upd. The monitoring software is being updated

Wif Upd. The web interface is being updated

DWifUpd. The dynamic web interface is being updated

MenSUpd. The menu structure is being updated

MenFUpd. The menu error texts are being updated

WifSUpd. The web interface status texts are being updated

RWP.Upd. The read/write parameters are being updated

Operation

NT 10000...NT 12000 39

The graphic in the lower section of the screen shows the energy fed in for the
day as a bar graph. The current period is shown as a flashing bar, as it is still in­creasing.

Standard screen (system) You can view the system data for a CAN-networked system with this screen.

Next to the total current system output, you also see the energy yield of your
solar system and any status messages of all connected units. These are provided
with the inverter number. An ‘M‘ means that the error has occurred on the main
unit.

NOTE

 The various functions are accessed via the menu. The main menu is opened

from the standard screen by pressing twice.

 You can return to the standard screen at any time by pressing and holding

the key.

 If a status message is shown you can open the error list directly with .

 You can access other instantaneous values from the standard screen with

and .

Access rights Die Bedienung des Solar-Inverters ist in verschiedene, durch Passwörter ge-

schützte Bereiche gegliedert.

Das Passwort ist 8-stellig.

Das Passwort kann im Menüpunkt «Einstellungen – Anmeldung» eingegeben
werden.

NOTE

Erfolgt nach der Eingabe des Passwortes keine Eingabe über die Tastatur, ist
nach etwa 5 Minuten eine erneute Eingabe des Passwortes erforderlich.

ROP.Upd. The read only parameters are being updated

ParaUpd. Parameter update

Min Upd. Update of the minute values in the data logger files

Day Upd. Update of the daily values in the data logger files

Mon Upd. Update of the monthly values in the data logger files

YearUpd. Update of the annual values in the data logger files

SMinUpd. Update of the minute values in the system data logger files

SDayUpd. Update of the daily values in the system data logger files

SMonUpd. Update of the monthly values in the system data logger

files

SYerUpd. Update of the annual values in the system data logger files

Operation

40 NT 10000...NT 12000

Customer area The customer password must be entered to access this area. All settings can be

made which are required for installation and commissioning of the Solar Inver­ter.

NOTE

The password for the customer area is:
********
The password is preset and is directly confirmed with .
As an option you can assign a personal password in the Commissioning menu.
Only digits between 0 – 9 and letters between a – z and
A – Z are permitted.
The password always has 8 characters. If the password you entered has less than
8 characters, the remaining characters are filled with *.
Example:
Your password is "Solar". This password has 5 characters. The system automati­cally appends three *, so that the password becomes "Solar***".

Installer area In this section the installer can make special settings on the Solar Inverter which

are only possible after consulting the Technical Hotline. Request a device-speci­fic password from the Technical Hotline.

Technical hotline [phone]

Country password Changing the country setting after commissioning requires an installer pass-

word, which can be obtained from the Technical Hotline. The last 8 digits of the
installer password form the country password.

NOTE

Each country has specific regulations for grid connection of inverters. By selec­ting the country the settings for the switch-off parameters are set according to
the standards for this country.

Menu structure You can access all screens on the Solar Inverter with the menu. The menu is ope-

ned by pressing the left arrow key from the standard screen.

Operation

NT 10000...NT 12000 41

NOTE

 The areas highlighted in grey are only available in the main unit

 *) after entering the customer password. Standard password: ******** (= 8

asterisks)

 **) This is only shown if the configured country of installation is Italy.

Overview of screen displays

Instantaneous values
Energy yield
Events
History
Information

Instantaneous values
Energy yield
Events
System history
System info

General information
Login
Network*
Commissioning*
Change country*
Self-testing**

Yield for week
Yield for 15 days
Yield for month
AC output
DC values
AC values
Max. output

Unit 1 Feed
Unit 2 Feed

Ethernet
CAN bus
Interfaces

Yield for week
Yield for 15 days
Yield for month
Total output
Max. output

Firmware
Memory
Mode

Language
LCD contrast
Date/Time*
Receiving time*
Firmware*
New password*

START

Unit 3 Feed
Instantaneous values 2

RS485 bus

Solar Inverter
Solar system
Settings

Standard screen

Display Description Calling Menu

Instantaneous Values – Unit

Operation

42 NT 10000...NT 12000

Current feed-in power, daily energy
yield and unit status
MPP: Feeding in MPP mode

The screen appears automatically if no
key is pressed for several minutes.
Solar inverter – Instantaneous values

Shows the output, the power fed in
today, and the DC and AC voltage of
power unit 1

Solar inverter – Instantaneous values –

Shows the output, the power fed in
today, and the DC and AC voltage of
power unit 2

Solar inverter – Instantaneous values –

Shows the output, the power fed in
today, and the DC and AC voltage of
power unit 3

Solar inverter – Instantaneous values –

Interior temperature of unit
(Temp.Inv.) and temperature and irra­diation values (if sensor is connected)

Solar inverter – Instantaneous values –

Instantaneous values – Yields

AC yields and operating hours from
today, yesterday and the day before
yesterday

Solar inverter – Energy yield

AC yields and operating hours for the
current week, the previous week, the
current month and the previous
month

Solar inverter – Energy yield –

AC yields for the current year and the
previous year

Solar inverter – Energy yield –

Events – Unit

Select starting data for event display Solar inverter – Events

Display event list Solar inverter – Events –

Display Description Calling Menu

Operation

NT 10000...NT 12000 43

Display event details (error number,
data, starting time, duration and
number of occurrences per day)

Solar inverter – Events – –

History – Unit

Daily yield for 1 week Solar inverter – History – Yield for

week

Daily yields for 15 days Solar inverter – History – Yield for 15

days

Monthly yields Solar inverter – History – Yield for

month

AC output (5-min. values) Solar inverter – History – AC output

DC voltage (5-min. values) Solar inverter – History – DC output

DC current (5-min. values) Solar inverter – History – DC output –

AC voltage (5-min. values) Solar inverter – History – AC output

AC current (5-min. values) Solar inverter – History – AC output –

Maximum output Solar Inverter – History – Max. output

Information – Unit

Display Description Calling Menu

Operation

44 NT 10000...NT 12000

Firmware Solar Inverter – Information – Firmwa-

re

Memory card Solar Inverter – Information – Memory

Device mode Solar Inverter – Information – Mode

Instantaneous values – Solar system (display only main unit)

Current system feed-in power, daily
energy yield and system status

The screen appears automatically on
the main unit if no key is pressed for
several minutes.
Solar system – Instantaneous values

Yields – Solar system (display only main unit)

AC system yields and operating hours
from today, yesterday and the day be­fore yesterday

Solar system – Energy yield

AC system yields for the current week,
the previous week, the current month
and the previous month

Solar system – Energy yield –

AC system yields for the current year
and the previous year

Solar system – Energy yield –

Events – Solar system (display only main unit)

Select starting data for system event
display

Solar system – Events

Display event list for entire system Solar system – Events –

Display event details (error number,
data, starting time, duration and
number of occurrences per day)

Solar system – Events – –

Display Description Calling Menu

Operation

NT 10000...NT 12000 45

History – Solar system (display only main unit)

Solar system daily yield for 1 week Solar system – System history – Yield

for week

Solar system daily yield for 15 days Solar system – System history – Yield

for 15 days

Solar system monthly yields Solar system – System history – Yield

for month

Solar system AC output (5-min. values) Solar system – System history – AC ca-

pacity

Maximum system output (daily maxi­mum values)

Solar system – System history – Max.
capacity

System info – Solar system (display only main unit)

Unit list for selecting a unit Solar system – System info

Selection of information Solar system – System info –

Firmware Solar system – System info – Firmware

Memory card Solar system – System info – Memory

Device mode Solar system – System info – Mode

Settings – General

Display Description Calling Menu

Operation

46 NT 10000...NT 12000

Display language Settings – General – Language

LCD contrast Settings – General – LCD contrast

Set date/time
(only possible with customer pass­word)

Settings – General – Date/Time

Set receiving time (starting time and
duration in which the unit can also be
addressed in the night mode via the
network).
(only possible with customer pass­word)

Settings – General – Receiving time

Firmware versions Settings – General – Firmware

Changing the customer password
(only possible with customer pass­word)

Settings – General – Password

Settings – Login

Password entry to access advanced
settings (necessary for commissioning)

Settings – Login

Settings – Network (only possible with customer password)

Network settings (Screen 1): Activate
DHCP for the automatic IP address set­ting or enter IP address manually

Settings – Network – Ethernet

Network settings (Screen 2) Settings – Network – Ethernet –

Only for secondary unit Settings – Network – CAN bus

Display Description Calling Menu

Operation

NT 10000...NT 12000 47

Error messages The Solar Inverter indicates malfunctions in the LCD display and saves these in

the internal error memory.

The fault display consists of a number and a short description. Based on the first
number you can quickly recognise which area the fault has occurred in:

1: Solar generator fault

2: AC grid fault

3: Inverter fault

4: Interface/communication fault

5: Interface/communication warnings

6: Remote access warnings

9: Service fault

Only for secondary unit with manual
CAN ID setting: CAN ID request

Settings – Network – CAN bus – CAN
ID

Main unit only Settings – Network – CAN bus

Selection at the main unit: Type of ID
allocation for the secondary units

Settings – Network – CAN bus – Secon­dary units

Setting the baud rate Settings – Network – CAN bus – Baud

rate

Function test for the CAN connection Settings – Network – CAN bus – Diag-

nostics

Setting of the irradiance and tempe­rature sensor and configuration of the
S0 pulse output

Settings – Network – Interfaces

Display Description Calling Menu

Operation

48 NT 10000...NT 12000

If an error is shown in the standard display, then you can look up the exact error
message in the menu under Solar inverter – Events.

NOTE

 A restart may be attempted in the event of an error message.

 Please note the serial number of the unit and the error number before con-

tacting the Technical Hotline.

 The Technical Hotline can be contacted on [phone] between

7.30 am and 6 pm CET during weekdays.

Operation

NT 10000...NT 12000 49

Display message Description Cause and possible remedies

Solar generator fault

101:U-DC max. Your NT Solar Inverter is approved for a

maximum solar generator open-circuit
voltage of 900 V. All DC input compo­nents are adequately dimensioned with a
safety margin. If the threshold is excee­ded, the Solar Inverter stops feeding.

The maximum DC voltage was exceeded.
 Check the dimensioning of your PV

generator.
Too many modules are connected in se­ries.
 Reduce the number of modules and

re-commission the system.

102:Insulat. Before each connection, your Solar Inver-

ter checks the PV system for a possible
earth or insulation fault. If this kind of er­ror is detected, no feed in takes place.
The mode of operation is compliant with
DIN V VDE 0126-1-1.

The Solar Inverter has discovered an insu­lation fault in the PV system during
run-up.
 Check your PV system for possible in-

sulation faults (damaged DC cables

etc.).
The measured insulation resistance must
be at least 900 kΩ.

103:AFI>30mA
105:AFI>60mA
106:AFI150mA

Your Solar Inverter is equipped with an
AC/DC sensitive AFI according to DIN VDE
0126-1-1. The monitoring unit has detec­ted a relative residual current increase.

A sudden residual current increase has oc­curred during Solar Inverter operation.
 Check your PV system for possible in-

sulation faults.

104:AFI>0.3A Your Solar Inverter is equipped with an

AC/DC sensitive AFI according to DIN VDE
0126-1-1. This monitoring unit has detec­ted an absolute residual current of >300
mA.

A residual current has occurred during So­lar Inverter operation.
 Check your PV system for possible in-

sulation faults.

AC grid fault

201:Surge e. Your Solar Inverter continuously moni-

tors the quality of the AC grid. During
high voltage peaks on the phase feeding
in, the Solar Inverter stops feeding and
attempts a restart.

The Solar Inverter has detected a high
voltage peak on the phase feeding in.
 After troubleshooting the Solar In-

verter restarts automatically. Should

the error occur frequently, please

contact your power supply company.
A monitoring phase and a neutral con­ductor were interchanged during connec­tion of the AC side.

202:UAC1>10% Your Solar Inverter continually monitors

the voltage level of the phase feeding in.
If the maximum permissible limit is excee­ded, the Solar Inverter stops feeding and
does not start up again until the voltage
value drops below the maximum permis­sible limit.

The cable cross-section in the AC supply
line to the Solar Inverter is too small.
Your inverter feeds into a spur line, which
is insufficiently dimensioned.
 Check the design of your grid connec-

tion (energy meter) or the grid feed

point to your power supply company

(PSC).
 Ask your power supply company

(PSC) about grid stability and design.

Operation

50 NT 10000...NT 12000

203:UAC1>Max
205:UAC2>Max
207:UAC3>Max

Your Solar Inverter continuously moni­tors the voltage levels for feed phases L1,
L2 and L3. If the maximum permissible li­mit is exceeded, the Solar Inverter stops
feeding and does not start up again until
the voltage value drops below the maxi­mum permissible limit.

The cable cross-section in the AC supply
line to the Solar Inverter is too small.
Your inverter feeds into a spur line, which
is insufficiently dimensioned.
 Check the design of your grid connec-

tion (energy meter) or the grid feed
point to your power supply company
(PSC).

 Ask your power supply company

(PSC) about grid stability and design.

204:UAC1<Min
206:UAC2<Min
208:UAC3<Min

Your Solar Inverter continuously moni­tors the voltage levels for feed phases L1,
L2 and L3. If the voltage falls below the
minimum permissible limit, the Solar In­verter stops feeding and does not start up
again until the voltage value exceeds the
minimum limit value. If the voltage drops
below 160 V, the supply is no longer ade­quate for the Solar Inverter.

 Ask your power supply company

(PSC) about grid stability and design.

210:Frq1>Max
211:Frq1<Min

The Solar Inverter continually monitors
the grid frequency of the phase feeding
in. If this is outside the permitted range,
the Solar Inverter stops feeding and does
not start up again until the value is within
the tolerance range.

 Ask your power supply company

(PSC) about grid stability and design.

212:DC share Your Solar Inverter continually monitors

the quality of current fed in. If an increa­sed DC share is found in the current fed
in, the Solar Inverter stops feeding.

 Restart the Solar Inverter.
If the error still occurs, please contact the
Technical Hotline. The phone number is
provided on the back of the manual.

213:UAC1>10%
(Warning)

The voltage of the phase feeding in is
higher than 10% above the nominal va­lue. If this is the case for longer than ten
minutes, the inverter stops feeding and
does not switch on again until the volta­ge drops below this limit again.

The cable cross-section in the AC supply
line to the Solar Inverter is too small.
Your PV system feeds into a spur line,
which is insufficiently dimensioned.
 Ask your power supply company

(PSC) about grid stability and design.

 Check the design of your grid connec-

tion (energy meter) or the grid feed
point to your power supply company
(PSC).

224:AC P. fail Your Solar Inverter has detected a mains

power failure.

 Ask your power supply company

(PSC) about grid stability and design.

Display message Description Cause and possible remedies

Operation

NT 10000...NT 12000 51

225:UV excon
226:OV excon

Your Solar Inverter is equipped with a
high-quality redundant grid monitoring
function according to DIN V VDE 0126-1-1
and constantly monitors the grid. If one
of the phases fails, or if the phase positi­on between the individual conductors
changes, the Solar Inverter stops feeding
and does not start up again until the er­ror is eliminated.

Check phases L2 and L3.
 Ask your power supply company

(PSC) about grid stability and design.

227:L1 Your Solar Inverter continuously moni-

tors the output current. Excessive current
rise was detected.

 Ask your power supply company

(PSC) about grid stability and design.

Inverter fault

301:AFI over The integrated sensor for measuring the

residual current has been operated out­side its measuring range.

A residual current was detected during
start-up.
 Restart the Solar Inverter.
If the error still occurs, please contact the
Technical Hotline. The phone number is
provided on the back of the manual.

303:Overtmp. Your Solar Inverter is designed for an am-

bient temperature of up to +40?. When a
specified temperature threshold of the
heat sink is reached, the feed line is line­arly reduced in size. Should the heat sink
temperature nevertheless continue to in­crease, feeding is stopped. After the heat
sink temperature drops, the Solar Inverter
starts up again automatically.

The maximum permissible ambient tem­perature has been exceeded.
 The installation location is not suitab-

le. Please find another installation lo-

cation.
The air circulation requirement was not
taken into account during installation.
 Clean the Solar Inverter, if dirt pre-

vents cooling.
 Observe the installation distances

specified in the manual.
Objects were laid on the heat sink and
unimpaired convection was prevented.
 Remove the objects.

304:Grid re. The NT Solar Inverter always checks the

function of the mains relay before it is
switched on. An error was detected du­ring this check.

 Restart the Solar Inverter.
If the error still occurs, please contact the
Technical Hotline. The phone number is
provided on the back of the manual.

305:AFI test The NT Solar Inverter always checks the

function of its residual-current monito­ring unit before it is switched on. An error
was detected during this check.

 Restart the Solar Inverter.
If the error still occurs, please contact the
Technical Hotline. The phone number is
provided on the back of the manual.

Display message Description Cause and possible remedies

Operation

52 NT 10000...NT 12000

306:T. meas. The NT Solar Inverter is equipped with a

temperature sensor that monitors the
heat sink temperature. This message ap­pears if the sensor reports a value outside
its value range or if the sensor cable is da­maged.

The ambient temperature of the Solar In­verter is outside the permissible range (<

-25°C).
 Wait until the temperature is back in

the permissible range.
A cable break has occurred in the sensor
which monitors the heat sink tempera­ture.
 Please contact the Technical Hotline.

The phone number is provided on the

back of the manual.

307:Overtmp.
(Warning)

Your Solar Inverter is designed for an am­bient temperature of up to +45?. When a
specified temperature threshold of the
heat sink is reached, the feed line is line­arly reduced in size. Should the heat sink
temperature nevertheless continue to in­crease, feeding is stopped. This warning
appears when the current heat sink tem­perature is just below the switch-off
threshold.

The maximum permissible ambient tem­perature has been exceeded.
 The installation location is not suitab-

le. Please find another installation lo-

cation.
The air circulation requirement was not
taken into account during installation.
 Clean the Solar Inverter, if dirt pre-

vents cooling.
 Observe the installation distances

specified in the manual.
Objects were laid on the heat sink and
unimpaired convection was prevented.
 Remove the objects.

309:control The software version of the control soft-

ware is incompatible.

 Carry out a software update.

310:no config No country is set. Contact the Technical Hotline for the ins-

taller password. The phone number is
provided on the back of the manual. Re­set the country of installation according
to the explanatory notes in section 4.2
Commissioning.

Interface/communication fault

401:SD card The Solar Inverter cannot find an S D car d.  Restart the Solar Inverter.

If the error still occurs, please contact the
Technical Hotline. The phone number is
provided on the back of the manual.

402:SD card The SD card is write-protected.  Restart the Solar Inverter.

If the error still occurs, please contact the
Technical Hotline. The phone number is
provided on the back of the manual.

403:CAN user Communication error with CAN user.  Check whether an error has occurred

in the secondary CAN unit. Restart

the secondary unit and main unit if

necessary.

Display message Description Cause and possible remedies

Operation

NT 10000...NT 12000 53

404:CAN bus CAN bus not in operation. No communication is possible via the CAN

bus.
 Check the bus cables and termination

resistors.

 Check whether the maximum line

lengths are within the permitted li­mits.

 Check whether bus cables were ins-

talled parallel to power cables. Sepa­rate bus lines and power cable from
each other spatially if necessary.

405:CAN user CAN user does not respond.  Check whether an error has occurred

in the secondary CAN unit. Restart
the secondary unit and main unit if
necessary.

406:file def Language file could not be loaded.  Restart your Solar Inverter. Carry out

a software update for the language
file.

407:file def Website could not be loaded.  Restart your Solar Inverter. Install the

latest file for the website via a soft­ware update.

408:file def File with error messages could not be loa-

ded.

 Restart your Solar Inverter. Install the

latest file for the error messages via a
software update.

409:CAN-ID Two Solar Inverters were assigned the

same ID.

 Select one of the two devices with

identical CAN ID and set it to Single
Unit mode, thereby deactivating the
CAN ID.

 Then set the device directly in to Se-

condary Unit mode and assign a new
CAN ID.

Interface/communication warnings

501:Solar
(Warning)

No sensor found on sensor channel 1 (so­lar).

If a sensor is connected:
 Check the sensor connection.
If no sensor is connected:
 Check the configuration via the Sun-

ways Browser.

502:Temp.
(Warning)

No sensor found on sensor channel 2
(Temperature).

If a sensor is connected:
 Check the sensor connection.
If no sensor is connected:
 Check the configuration via the Sun-

ways Browser.

Display message Description Cause and possible remedies

Operation

54 NT 10000...NT 12000

503:CAN com.
(Warning)

Communication malfunctions occur re­peatedly on the CAN bus.

A malfunction occurs in the data trans­mission on the CAN bus. However, a data
exchange continues to be possible.
 Check whether all bus line connectors

and terminating resistors are moun-

ted properly.
 Check whether bus cables were ins-

talled parallel to power cables. Sepa-

rate bus lines and power cable from

each other spatially if necessary.

504:CAN cfg.
(Warning)

CAN bus is in the configuration mode. No
measured values are transferred.

At least one unit is in the menu item Set­tings – Network – CAN bus.
 Close this menu in all units.

505:SMTP ser.
(Warning)

SMTP server cannot be reached An error occurred during e-mail delivery.

Re-attempting e-mail delivery.
 If the fault recurs check the e-mail

settings via the Sunways Browser

506:SMTP soc.
(Warning)

SMTP no socket available

507:SMTP cm.
(Warning)

SMTP faulty communication with server

508:DNS fehl.
(Warning)

DNS has failed Communication fault between the integ-

rated web server and an Internet browser
in conjunction with the Sunways browser.
These warnings are non-critical and can
be ignored if they only occur occasionally.
These warnings have no influence on the
energy production of the inverter.

509:HTTP con.
(Warning)

HTTP client connection has failed

510:HTTP aut.
(Warning)

HTTP client authorisation has failed

511:HTTP tim.
(Warning)

HTTP client timeout

512:HTTP soc.
(Warning)

HTTP client no socket available

513:HTTP soc.
(Warning)

HTTP client error with socket

514:HTTP met.
(Warning)

HTTP client incorrect method

515:HTTP pro.
(Warning)

HTTP client error with protocol

516:HTTP wr.
(Warning)

HTTP client write error

517:HTTP re.
(Warning)

HTTP client read error

518:CAN init.
(Warning)

CAN initialisation error CAN bus initialisation fault during device

startup.
 Restart the Solar Inverter.
If the error still occurs, please contact the
Technical Hotline. The phone number is
provided on the back of the manual.

Display message Description Cause and possible remedies

Operation

NT 10000...NT 12000 55

6.2 System monitoring

General information The basis for the system monitoring is the data logger integrated in the NT Solar

Inverter. The Solar Inverters of the NT series offer a wide range of monitoring
options for your solar system:

 The Sunways browser can display instantaneous values, stored operating

data and settings.

 With active alerting information about faults in the solar system can be sent

to a selected recipient via e-mail.

 Via the Sunways Portal connection the NT Solar Inverter can send the opera-

ting data of your solar system to the Sunways Portal on a daily basis without
additional hardware. In this way you can monitor your yields via the Internet
from wherever you are.

Three networking options are available for access to the system monitoring
function:

 Direct connection via an Ethernet cable (see section Direct Ethernet connec-

tion) or internal network (see section Connection via an existing Ethernet
network)

519:Time syn
(Warning)

Time synchronisation with the NTP server
has failed

 Firewall port 123 is blocked.
 Select an alternative time server

Remote access warnings

601:limit K2
(Warning)

The output power of your Solar Inverter is
limited to the threshold for relay K2
stored in the Sunways Browser, as speci­fied by your power supply company.

 Contact your energy supplier regar-

ding compensation depending on
the duration of the problem.

602:limit K3
(Warning)

The output power of your Solar Inverter is
limited to the threshold for relay K3
stored in the Sunways Browser, as speci­fied by your power supply company.

Contact your energy supplier regarding
compensation depending on the durati­on of the problem.

603:limit K4
(Warning)

The output power of your Solar Inverter is
limited to the threshold for relay K4
stored in the Sunways Browser, as speci­fied by your power supply company.

Contact your energy supplier regarding
compensation depending on the durati­on of the problem.

Service fault

9xx:Service A service error has occurred.  Disconnect the Solar Inverter from

the grid and from the solar generator

and reconnect it.
If the error occurs again, please contact
the Technical Hotline. The phone number
is provided on the back of the manual.

Display message Description Cause and possible remedies

Operation

56 NT 10000...NT 12000

NOTE

With a direct connection or an internal network without gateway to the Inter­net the Solar Inverter is unable to send e-mails. Portal connection and active
alerting is therefore not possible.

 Connection via Internet, e.g. via a DSL connection for the Solar Inverter (see

section Remote access via a DSL router)

 Connection via a Sunways modem (see section Connection via a Sunways mo-

dem)

Integrated data logger The data logger integrated in the NT Solar Inverter stores the operating data of

your solar system. In addition to 5-minute mean values, energy yields are also
stored as 5-minute, daily, weekly, monthly and annual values. Up to 200 status
changes (warnings and errors with start and end ) are also stored. Each data re­cord contains the data and time. The data logger is designed as a circulating me­mory, i.e. the respective oldest data are overwritten with new data.

Operating data (5-min. ave­rage values)

With this data memory volume approx. 30 days' worth of values can be stored
before the first value in the ring buffer is overwritten again.

Energy Yields

Status messages

Direct Ethernet connection The Solar Inverters are equipped with an Ethernet interface as standard for sys-

tem monitoring and configuration with a PC.

Number Value

4500 DC current

4500 DC voltage

4500 AC current

4500 AC voltage

4500 AC output

4500 Unit temperature

4500 Module irradiance (opt.)

4500 Module temperature (opt.)

Number Value

4500 5-minute yield

7300 Daily yield

250 Monthly yield

20 Annual yield

1 Total yield since commissioning

Number Value

200 Status changes

Operation

NT 10000...NT 12000 57

Connect your PC and the Solar Inverter using the Ethernet cable provided.
X-patch cables can also be used.

The PC is connected to the main unit as standard. Basically all Solar Inverters –
including Solar Inverters configured as secondary units or single units – feature
their own web server, so that a connection with any device can be established.

NOTE

 To always find the suitable configuration for installation and commissioning

on the PC, we recommend the use of a second network card (e.g. PCI Bus,
PCMCIA), which you can configure to match the default setting of the Solar
Inverter.

 The PC and the Solar Inverter must have matching IP addresses and net

masks. The network settings can be adjusted either directly on the Solar In­verter via the LCD display or on your PC.

 If two network cards are used the IP addresses must be in separate subnets,

e.g. 192.168.30.XXX and 192.168.40.XXX.

Network settings on the Solar
Inverter

NOTE

 The Solar Inverter is supplied with the following preset IP address:

192.168.30.50

 In the default setting the Solar Inverter does not support DHCP (Dynamic

Host Configuration Protocol). Therefore, the IP address is not assigned auto­matically. It is possible to activate the DHCP protocol via the Settings menu.

 IP addresses may not be assigned twice within the network!

If required you can assign your own IP address for the Solar Inverter via the Set­tings menu.

1. Open the menu Settings – Login.

2. Enter the default password (********, i.e. 8 asterisks) or the password you
have assigned.

PC

MasterSlave

INVERTER

INVERTER

Max. total CAN bus length:

500 m

Max. Ethernet

connection: 100 m

Operation

58 NT 10000...NT 12000

NOTE

Please note:
Only digits between 0 – 9 and letters between a – z and A – Z are permitted.
The password always has 8 characters. If the password you entered has less than
8 characters, the remaining characters are filled with *.
Example:
Your password is "Solar". This password has 5 characters. The system automati­cally appends three *, so that the password becomes "Solar***".

3. Open the menu Settings – Network – Ethernet.

4. Enter an IP address suitable for use with your PC. This means the first three
number blocks must be identical, and the last number block different.

Example:

If your PC has the IP address 192.168.1.1, assign the IP address 192.168.1.2
to the Solar Inverter

5. Call up additional settings with .

6. Enter the subnet mask 255.255.255.0 here.

7. Enter the IP address of your PC in the gateway.

8. Confirm with .

After the network configuration is completed you can start the Sunways Brow­ser by entering the IP address of the Solar Inverter in the address line of your
web browser.

Network settings on PC To enable your PC to communicate with the Solar Inverter, you must assign net-

work settings. The procedure differs slightly depending on the operating sys­tem. An configuration example under Windows

®

XP is shown below.

NOTE

IP addresses may not be assigned twice within the network!

1. Select Start - Settings.

2. Select Network Connections.

Operation

NT 10000...NT 12000 59

3. Double-click on the LAN connection via which you are connected to the So­lar Inverter.

4. Click in the Status window on Properties.

5. Mark Internet Protocol (TCP/IP) and click on Properties again.

6. Now assign an unused IP address 192.168.30.XXX and enter the subnet
mask 255.255.255.0.

7. Click on OK to confirm your entries.

8. In the Status menu item you can check the correctness of your entries and
the status of your connection.

Operation

60 NT 10000...NT 12000

After the network configuration is completed you can start the Sunways Brow­ser by entering the IP address of the Solar Inverter in the address line of your
web browser.

For more complex network configurations please contact your network admi­nistrator.

Connection via an existing
Ethernet network

You can integrate the NT Solar Inverter as a network device directly in an exis­ting home or company network.

Connect your PC and the Solar Inverter using a CAT 5 Ethernet patch cable.

The main unit is connected to the network as standard.

With DHCP If a DHCP server is present in your network, you can activate DHCP on the Solar

Inverter. In this case the Solar Inverter obtains the network settings automati­cally. You can display the assigned IP address via the LCD display (menu Settings
– Network – Ethernet).

Without DHCP If there is no DHCP server in your network, you must set an unused IP address

on the NT Solar Inverter (see section Solar inverter network setting settings).

Ask your network administrator for the necessary settings for IP address, net
mask and gateway.

After the network configuration is completed you can start the Sunways Brow­ser by entering the IP address of the Solar Inverter in the address line of your
web browser.

Remote access via a DSL router If a DSL connection or a network with Internet access is available you can make

the Solar Inverter accessible via the Internet.

Requirements:

 Your DSL router supports static IP address services such as www.dyndns.org

PC

PC

Hub
Switch
Router

INVERTER

INVERTER

Master

Slave

Max. total CAN bus length:

500 m

Max. Ethernet connection:

100 m

Operation

NT 10000...NT 12000 61

 Your router supports port forwarding.

Procedure:

1. Connect your Solar Inverter with your DSL router. Use a CAT5 Ethernet cable
with 1:1 RJ45 sockets. The main unit is connected to the network as stan­dard.

2. Register free of charge, e.g. at www.dyndns.org.

3. Create an alias for accessing your Solar Inverter, e.g. NT-sun­ways.dyndns.org. You can then access your Solar Inverter via this address.

4. Configure your DSL router such that the IP address is regularly reported to
www.dyndns.org (follow the procedure described in the manual for your
DSL router for this purpose).

5. Configure your DSL router such that it accepts queries from the Internet
(e.g. via port 80) and forwards them internally to the Solar Inverter (port
forwarding).

6. Also note that the port for access from the Internet set in your firewall must
be enabled.

NOTE

Instructions for configuring common DSL routers are available for download
from the Sunways AG website.

Connection via the Sunways
Modem

A modem connection can be used to bridge longer distances during system mo­nitoring and configuration. The Sunways Modem is connected to the Solar In­verter for this purpose. The Sunways Modem is available as an analog, ISDN and
GSM type.

1. Connect your Solar Inverter and your PC with a crossed or 1:1 Ethernet con­nection cable, type CAT5 with RJ45 sockets.

NOTE

In a networked system only the main unit should be connected to the remote
modem as standard.

2. Connect an external modem to your PC or use the internal modem of the
PC, if available. For commissioning please refer to the Sunways Modem user
manual.

PC

INVERTER

modem modem

max. 100 m

Operation

62 NT 10000...NT 12000

NOTE

The following modem combinations are permitted:

ISDN – ISDN
analog – analog
analog – GSM
GSM – analog
GSM – GSM

Connecting a Sunways Modem

1 Telephone connection
2 RS232 interface

3 LVDS for NT, AT and PT Solar Inver-

ters

4 Power supply unit

Dial-up connection from a PC
to the Solar Inverter

To establish a connection to your Solar Inverter with a PC via the modem, you
must establish a dial-up connection in Windows. The procedure under Win­dows

®

XP is shown below.

1. Run the wizard for a new connection via Start – Settings – Network Connec­tions.

The first selection screen is opened with Continue.

2. Select Connection to the network on My Computer.

3. Click Continue, select Dial-up connection in the next screen, and click Con­tinue.

41

2 3

INVERTER

MODEM

Operation

NT 10000...NT 12000 63

4. A list of the installed modems appears. Select the required modem and click
Continue.

5. Enter a connection name and confirm your entry with Continue.

6. Specify the phone number of your Sunways Solar Inverter.

When entering the telephone number, you may need to include one or
more digits to connect to an outside line. (An outside line is usually obtai­ned by placing a "0" before the actual telephone number.)

Confirm your entry with Continue.

7. In the next screen you can specify whether or not this connection is to be
available to all users of this PC. If in doubt specify "All users" and click Con­tinue.

8. Click the checkbox to place a shortcut on your desktop and click Finish.

9. The connection window appears automatically after finishing the connec­tion. (Alternatively via the icon on your desktop or via Start – Settings – Net­work Connections.)

Further settings are required in the Properties section.

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64 NT 10000...NT 12000

10. First select the Network tab and mark the entry Internet Protocol (TCP/IP)
there.

Select Properties.

11. Enter the following data:

Obtain an IP address automatically

Obtain DNS server address automatically

12. Enter "customer" as the user name and the standard password (********,
i.e. 8 asterisks) or the password you entered previously.

NOTE

The password matches the customer password on the unit.

13. The connection is established with Dial. After the connection is established
you can start the Sunways Browser by entering the IP address of the Solar
Inverter in the address line of your web browser.

NOTE

In contrast to the normal IP address for a modem connection the IP address of
the Solar Inverter is set to 192.168.20.50 by default.

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6.3 Sunways Browser

General information The Sunways Browser can be run via a standard Internet browser, e.g. Mozilla

Firefox. One of the three possible connections between a PC and the Solar In­verter is required for this purpose (see section 6 System monitoring).

NOTE

Your browser must be set to UTF-8 character coding in order to ensure that all
characters are displayed correctly.

The start screen opens once the IP address of the Solar Inverter has been entered
in the address line of the browser:

Here you can select from eleven different languages.

The browser offers the following functions:

 Display of the operating mode and instantaneous values for a single unit or

for a CAN-networked system

 Display of energy yields as 5-minute, daily, monthly, annual and total values

 5-minute mean values of solar generator current and voltage, grid current

and voltage and feed-in power

 Settings, e.g. of date/time, interface configuration, alerting options, commu-

nication parameters etc.

 Communication software update (LCD display, interfaces, communication

and Sunways browser) and the control software (control and monitoring)

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Access protection The Sunways Browser is provided with password protection so that unautho-

rised persons cannot access your Solar Inverter.

The following user data are set in the delivered state:

User: customer

Password: ********

NOTE

 It is recommended that you change this password to an 8-character/digit

password.

 This password is identical to the password entered via the LCD display for set-

tings and commissioning.

 Only digits between 0 – 9 and letters between a – z and A – Z are permitted.

 The password always has 8 characters. If the password you entered has less

than 8 characters, the remaining characters are filled with *.

 Example:

Your password is "Solar". This password has 5 characters. The system auto­matically appends three *, so that the password becomes "Solar***".

 If you cannot remember the password you can request a device-specific pass-

word from the Technical Hotline (Tel. [phone]) so that you can
access your Solar Inverter again. In this case you need the serial number and
the MAC address, which can be found on the type label.

Overview – Menu

Home – Display of start page

Solar Inverter – Display of the instantaneous values, the stored ope­rating data, and the status of the Solar Inverter

Solar System – Displays a system overview with status, total output,
yields and access to secondary units (only available if the unit is con­nected with the main unit)

Information – Device information, e.g. serial number

Settings and software update for the unit or the networked system

Operation

NT 10000...NT 12000 67

Language selection You can display the web pages in the following eleven languages. Click on the

country flags to switch to the respective language.

 English

 English

 Spanish

 Italian

 French

 Greek

 Czech

 Slovenian

 Portuguese

 Dutch

 Bulgarian

Setting date/time This function can be accessed via Settings – Date/Time. If you have selected the

correct time zone and an Internet connection is available, you can automatically
synchronise the time of the Solar Inverter with a time server with the NTP but­ton.

As an alternative you can also transmit the PC time to the Solar Inverter.

System information for your solar system such as name, capacity,
geographical location, a photograph and details of the compo­nents.

Operation

68 NT 10000...NT 12000

NOTE

Please note that time settings should only be made with caution, as they directly
affect data logging. For example, if you set the time back by 1 hour, then the
existing data will be overwritten.

Software update The software update is used to expand functions on your Solar Inverter. The

communication software (responsible for LCD display, interfaces, communica­tion and Sunways Browser) and the control software or the monitoring soft­ware can be updated.

1. Call up the function Settings – Software Update for this purpose. This func­tion requires entry of a password (default: ******** = 8 asterisks or the
your own customer password).

2. The upper screen section shows the current software versions. If a new ver­sion is made available on our website (http://www.sunways.eu/en) you can
download this file and load it via the Sunways Browser. Select the file on
your hard disk in the File field with the Browse… button and confirm the
file dialogue with OK.

3. Select a software package.

4. The current software is copied to the Solar Inverter with the Update button.

5. Use the COM Reset button to restart the communication unit and load the
new software.

Devices networked via CAN can be updated via the network. In this case the
software is distributed to the secondary units via the main unit. Please contact
our Technical Hotline for further information. The phone number is provided on
the back of the manual.

During the update process, update information is displayed in the status indica­tor in the standard window of the Solar Inverter's LCD display. The display mes­sages have the following meaning:

Display text Update type

Reg.Upd. Control software

Operation

NT 10000...NT 12000 69

Internet dial-in via modem

Modem settings If you use a modem for the Internet connection, the modem must be set up ac-

cordingly via the Sunways Browser. Therefore, first establish a connection bet­ween your PC and the Solar Inverter (see section Direct Ethernet connection).
With the web browser you can then make the following settings in the menu
Settings– Modem:

Ueb.Upd. Monitoring software

Com Upd. Communication software

Wif Upd. Web interface

DWifUpd. Dynamic web interface

MenSUpd. Menu structure

MenFUpd. Menu error texts

WifSUpd. Web interface status texts

RWP.Upd. Read/write parameters

ROP.Upd. Read only parameters

ParaUpd. Parameter update

Min Upd. Update of the minute values in the data logger files

Day Upd. Update of the daily values in the data logger files

Mon Upd. Update of the monthly values in the data logger files

YearUpd. Update of the annual values in the data logger files

SMinUpd. Update of the minute values in the system data logger files

SDayUpd. Update of the daily values in the system data logger files

SMonUpd. Update of the monthly values in the system data logger files

SYerUpd. Update of the annual values in the system data logger files

Display text Update type

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70 NT 10000...NT 12000

Modem type Selection for the modem type: Analogue, ISDN or GSM modem

Internet dial-in number Dial-in number of your Internet provider (ISP)

Outside line If you have a telephone system, you can, for example, enter a 0 here. A comma

results in a dialling pause of 1 second.

Provider Login User name defined by your Internet provider

Provider password Password defined by your Internet provider

PPP-IP You can reach the Solar Inverter by entering this IP address in your web browser.

The default address is 192.168.20.50.

MSN With an ISDN modem you store the MSN of the extension to which the modem

is connected here. This is usually the telephone number of the extension wit­hout the area code.

SIM card PIN With a GSM modem you enter the PIN of the SIM card here.

APN Access point number. You can obtain the APN from your mobile communica-

tions provider.

Always connected Select this option if you have a GPRS mobile tariff in order to ensure that the

device is always online.

NOTE

Please note!!! With time-based tariffs (e.g. modem connection with GSM or
analog) this function can result in very high phone charges!

Function buttons Use the Send option to save the settings in the Solar Inverter.

Operation

NT 10000...NT 12000 71

Use Read to display the settings currently stored in the Solar Inverter.

With Modem Test you can test the modem connection to the set Internet provi­der. You will receive feedback as to whether dialling in was successful.

Click About to obtain additional information about the modem.

Click Initialise to re-initialise the modem.

NOTE

 Before conducting the modem test, the settings must be stored in the Solar

Inverter with Send.

 For example, you can select inexpensive dial-in numbers for Internet provi-

ders at www.teltarif.de/internet or www.billiger-surfen.de. Here you will
find not only tariff information, but also the access data (phone number,
user name, password).

E-mail settings In order for the Solar Inverter to be able to send e-mails, the e-mail settings

must be stored via the Sunways Browser. The settings can be accessed via Set­tings – Network in section E-mail Settings.

NOTE

Requirements:

 When dialling in via modem, the correct dial-up settings must be stored (see

Internet dial-up via modem).

SMTP provider SMTP server for sending e-mails, e.g. mail.gmx.net (max. 30 characters). Alter-

natively an IP address can be entered.

SMTP user User name for your e-mail provider (generally your e-mail address), e.g. sun-

[email protected] (max. 50 characters)

SMTP password Password for your e-mail provider (max. 20 characters)

Function buttons Via SMTP Test you can send a test message to the e-mail address stored for ac-

tive alerting.

NOTE

 Before conducting the SMTP test, the settings must be stored in the Solar In-

verter with Send.

Operation

72 NT 10000...NT 12000

 During the SMTP tests an e-mail is sent to the e-mail address stored in the sys-

tem monitoring unit (active alerting). Before starting the test check whether
a valid e-mail address is stored under active alerting.

 If no login is set up on the configured SMTP server, the password field must

be left empty. The login field is entered as the sender address for the e-mail.
If no login is specified, the Solar Inverter sends the e-mail as nt-inverter@sun­ways.de.

Use the Send option to save the settings in the Solar Inverter.

Use Read to display the settings currently stored in the Solar Inverter.

Active alerting

General information With active alerting you can receive) status messages (errors and warnings) for

your solar system by e-mail. If a status message was active for longer than 15 mi­nutes or occurred 5 times in one day, you will receive an e-mail at the next full
hour, which is sent to the e-mail address stored in the Solar Inverter.

NOTE

The main unit sends the status messages of all Solar Inverters if they are
CAN-networked.

Requirements:

 The main unit must be connected to the Internet via a network or modem.

 When dialling in via modem, the correct dial-up settings must be stored (see

Internet dial-up via modem).

 Correct e-mail settings must be stored in the Sunways Browser (see E-mail

settings).

Alerting settings The alerting settings can be accessed with the button Settings – System Monito-

ring in the Active Alerting section.

Operation

NT 10000...NT 12000 73

Active e-mail alerting Activation or deactivation of the active alerting function.

E-mail address In the E-mail address field you enter the e-mail address to which the messages

are to be sent.

Function buttons Use the Send option to save the settings in the Solar Inverter.

Use Read to display the settings currently stored in the Solar Inverter.

Sunways portal connection

General information You can have the operating data of your solar system automatically sent to the

Sunways Portal to monitor your system via the Internet. This is possible without
using a Sunways Communicator.

The portal connection is configured via the Sunways Browser. Following activa­tion the main unit automatically sends a registration e-mail containing the sys­tem data (e.g. number of units, serial number, etc.) to the Sunways Portal.

After activation the operating data for each day are sent to the Sunways Portal
by e-mail on a daily basis before the main unit is switched off for the night. The
interval can also be set shorter as an alternative. If a change is made to your so­lar system (e.g. additional unit), then the change is automatically reported to
the Sunways Portal.

A basis access for the Sunways Portal for displaying the yield data is available to
every Sunways customer free of charge. Expanded functions, e.g. the set­point-actual comparison in the Sunways Portal, can also be purchased for a fee.

NOTE

The main unit sends the status messages of all Solar Inverters if they are
CAN-networked.

Requirements:

Operation

74 NT 10000...NT 12000

 The main unit must be connected to the Internet via a network or modem.

 Correct e-mail settings must be stored in the Sunways Browser (see E-mail

settings)

 Correct portal settings must be stored in the Sunways Browser.

Setup Check whether you meet all requirements. Configure the specified settings if

necessary.

Open the setting page in the Sunways Browser. This can be accessed under Set­tings – System Monitoring in the section Sunways Portal.

Portal connection Activation or deactivation of the portal connection.

Portal address Preset for the Sunways Portal

Mailbox file Preset for the Sunways Portal

System ID System ID assigned by the portal. This is generated automatically after portal ac-

tivation and sent to the Solar Inverter. It can take up to 4 minutes before the
Solar Inverter displays the system ID.

Portal E-mail Preset for the Sunways Portal. Here as well, you can enter another address if you

want to evaluate the operating data yourself.

E-mail interval Select the interval at which the e-mails are to be sent. If you operate the system

on a DSL modem, you can set a short interval. If you use a modem connection,
select a longer interval (e.g. daily) to eliminate unnecessary phone charges).

User E-mail Enter an e-mail address in this field, to which the confirmation message will be

sent by the Portal. It contains a link for the activation of your system in the Sun­ways Portal.

User SMS As an option you can specify a mobile number to which a text message is sent

once your system is successfully set up in the Portal.

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Function buttons Use Portal Test to test the portal connection. You will receive an e-mail at the

address specified under User E-mail and text message if you have entered your
mobile phone number in under User SMS.

NOTE

Before the portal test you must transfer the settings to your Solar Inverter with
Send. In addition, an SMTP server must be configured. These settings can be
changed under Networking. If the test was successful, a an e-mail is sent to the
user e-mail address or a text message to the specified phone number.

Use the Send option to save the settings in the Solar Inverter.

To view your system data in the Sunways Portal you need a user account. This
will be issued to you if you follow the link in the confirmation e-mail and fill out
the registration form.

As an alternative you can also enter an existing user name with the correct pass­word to assign the system to an existing user account.

Operation

76 NT 10000...NT 12000

NT 10000...NT 12000 77

A Appendix

A.1 Drilling template for the wall bracket

You can use the following template for installing the wall bracket. The template
shows all distances and dimensions.

A.2 General liability disclaimer

Although information contained in this manual has been checked with the gre­atest care for its accuracy and completeness, not liability whatsoever can be ac­cepted for errors or omissions.

 Sunways AG reserves the right to change the hardware and software fea-

tures described here at any time without prior notice.

 This manual may not be reproduced, passed on, copied or translated into

other languages in whole or in part in any form or with any means without
prior written approval by Sunways AG.

 Sunways AG shall assume no guarantee for damage caused by faulty or lost

data, due to incorrect operation or the malfunction of the Solar Inverter, the
software, additional devices or PCs.

All rights reserved. © Sunways
AG

The products named on cover page are protected by copyright and sold under
licence. No part of this document may be reproduced in any form without prior
written approval of Sunways AG and the Sunways licensors.

Registered trademark The Sunways logo is a registered trademark of Sunways AG, Konstanz.

HERIC

®

is a registered trademark of Fraunhofer Gesellschaft, Munich.

470

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NT 10000...NT 12000 79

SD130912A 08/10 EN

Sunways AG
Photovoltaic Technology
Macairestraße 3 - 5
D - 78467 Konstanz
Phone [phone]
Fax [phone]
E-Mail [email protected]
www.sunways.de

Technical Hotline
Germany: [phone]
Spain: [phone]