Sunways NT 10000 User Manual
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Sunways NT 10000 User Manual

Solar inverter
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Summary of Contents for Sunways NT 10000

  • Page 1 MANUAL User Manual for Sunways Solar Inverter NT 10000...
  • Page 2 SOLAR INVERTERS User Manual for Sunways Solar Inverter NT 10000...
  • Page 3 Basic Settings Installation General Safety Instructions Opening the Device Scope of Delivery Integrating the Solar Inverter in the PV System Structure of NT 10000 Protection Concept Electrical Safety Mechanical Safety Cleaning Instructions Setting the Fixed Voltage Level Country Settings Installation Site Requirements...
  • Page 4 Commissioning the Solar Inverter Dismantling the Solar Inverter Operating Instructions Operating the Display Configuration of the Solar Inverter 3.3 Internal Data Memory Sunways Monitor 2.0 Software Sunways Portal and Sunways Communicator Connecting the Alarm Relay Connecting the Insolation and Temperature Sensor Starting-Up and Shutting-Down the Solar Inverter General Information...

  • Page 5: Table Of Contents

    Communication Link Error Display Error Diagnosis Appendix Tyco Solarlok Connectors List of Special Terms and Abbreviations Technical Data NT 10000 Conformity and Safety Declarations Terms and Conditions of Guarantee General Exclusion of Liability Modem Link Interface Cables Interface Transformer Linking and Interconnecting Possibilities...
  • Page 6 1.0 General information Thank you for having chosen a Sunways Solar Inverter NT 10000! You have acquired a high-quality product with unique features and a top efficiency level. This Solar Inverter is designed in accordance with the proven HERIC ® topology and therefore guarantees you a maximum energy yield.

  • Page 7: Safety Instructions

    Safety Instructions The user manual contains safety instruc- tions. They are marked by a triangle with an exclamation mark. General Safety Instructions All safety instructions contained in this section as well as in the entire user manu- al must be observed to ensure the safety of the user.
  • Page 8 Opening the Device Prior to opening the housing, always disconnect the device from the grid and the PV generator. After having been disconnected from the PV generator, there is still lethal voltage inside the device and at the PV generator hubs for approximately five minutes.

  • Page 9: Sunways Solar Inverter

    Sunways Solar Inverter NT 10000 Scope of Delivery · Sunways Solar Inverter NT 10000 · assembly frame · user manual, setup, guarantee card, CD ROM with software · 3 pairs of Tyco Solarlok connectors Checking the Consignment Prior to shipment, our products are chec- ked to make sure they are in a perfect con- dition.
  • Page 10 That may lead to a significant loss of yield. · The NT 10000 has three internal energy units that are supplied by three inde- pendent PV generators. The NT 10000 is based on the «MPP multitracking» prin- ciple;...
  • Page 11 It can be designed as a packet- type switch, for example. GRID Grid connection: The NT 10000 is connected to the grid in three phases. Each phase is internally con- trolled and monitored independently of the others. (1) PV generator switch...
  • Page 12 Energy unit 2 DC inlet 2 Energy unit 3 DC inlet 3 The Solar Inverter NT 10000 is made up of three energy units that are controlled independently of each other. Each energy unit has its own DC inlet. Control Circuit Board...
  • Page 13 Energy unit 3 Energy unit 2 Energy unit 1 Underside of the device Solar Inverter NT 10000 Control circuit board 3 Control circuit board 2 Control circuit board 1 Interface circuit board (1) (2) (3) DC inlet – – –...
  • Page 14 Protection Concept The micro controller continuously and simultaneously monitors and displays the following parameters. Numbers 1 to 3 refer to the energy units 1 to 3: Error No. Description DC overvoltage 1 DC overvoltage 2 DC overvoltage 3 Frequency fault 1 Frequency fault 2 Frequency fault 3 Overheating of heat sink 1...
  • Page 15 In case of an error, the current injection is immediately stopped, and the grid relay is triggered which disconnects the Solar Inverter from the grid. In addition, there are the following pro- tection devices on the grid side and on the PV generator side: ·...
  • Page 16 Installation Instructions...

  • Page 17: Safety Instructions

    Safety Instructions Electrical Safety Prior to opening the housing, disconnect the Solar Inverter from the electricity of the grid and the PV generator. After disconnection from the PV generator and the grid, there is still lethal voltage inside the Solar Inverter and at the PV generator hubs for approximately five minutes.
  • Page 18 Cleaning Instructions Prior to cleaning your PV modules, always disconnect the PV system from the power grid by opening the grid disconnecting device (main fuse), and open the DC circuit breaker on the PV generator to prevent the risk of an electric shock. Use a dry, soft cloth to clean your PV modules.

  • Page 19: Basic Settings

    Basic Settings Setting the Fixed Voltage Level Your Sunways Solar Inverter is equipped with a precise MPP control. If less than 200 watt are injected, the control of the energy unit concerned operates at a fixed voltage level. That prevents unnecessary MPP searching.
  • Page 20 Country Settings Please note that it takes different configu- rations to operate Sunways Solar Inverters in different countries. The setting can be adjusted accordingly with the DIP switch «S300» below the display circuit board. Switch position Country Germany Spain Illustr.: DIP switch «S300» for changing the country setting Change ·...
  • Page 21 To change the country setting, the housing cover must be removed. The DIP switch must be re-positioned to the respective country setting on all three control circuit boards. When delivered, the Solar Inverters are pre-set to the intended destination coun- try.

  • Page 22: Installation

    Installation Warm Wall min. 300 mm Cool air The Solar Inverter may only be installed by a trained and qualified electrician. Special tools are needed for installation. Please read this chapter very carefully. Ceiling min. 300 mm...
  • Page 23 Installation Site Requirements · Mechanical Load-Bearing Capacity During assembly, please keep in mind that the Solar Inverter weighs 30 kg. The assembly foundation must be solid and capable of bearing the weight in the long run. · Thermal Interaction The assembly foundation must be made of flame-retardant material (unsuitable: wooden or plastic foundation;...
  • Page 24 Mechanical Installation For assembly, please observe the instruc- tions in the «Setup» leaflet! Electrical Connection and Cable Entry As soon as the Solar Inverter is fixed to the assembly frame, it can be electrically con- nected. The device may only be opened by a qualified electrician.
  • Page 25 Grid Connection The Solar Inverter must be connected to the grid with five-cores (L1, L2, L3, N, PE). We recommend a cable cross-section of 5 x 4 mm The Solar Inverter is connected to the supply grid via its internal printed-circuit board terminals.
  • Page 26 Three-phase grid connection PE N L3 L2 L1 25 A Always use sufficiently dimensioned cable cross-sections to prevent a significant incre- ase of the grid impedance between the service distribution system and the Solar Inverter. The capacity of the AC terminals is 0.5 mm to 6 mm for rigid cables, and 0.5...
  • Page 27 · Insert the five-core AC cable (outer diameter 9–17 mm) into the M32 cable gland. · Connect lines L1, L2, L3, N, and PE to the slated printed circuit board terminal with a slotted screwdriver. · Pull the M32 cable gland tight, so the cable cannot exert mechanical force on the printed circuit board terminal.
  • Page 28 Connecting the PV Generator · Preparation Please note that the NT 10000 has three independent DC inlets. The PV generators may have different ratings, but they must be compatible with the specifications of the Solar Inverter. 1. Install the DC cables in accordance with the system ratings prescribed by your PV planner.
  • Page 29 · Connection The PV generator is connected by means of the externally accessible, touch-safe Tyco Solarlok connectors included in the con- signment. The Tyco Solarlok connectors are designed for a cable cross-section of 4 mm and have to be crimped. For further infor- mation, please read chapter 4.2 «Tyco Solarlok Connectors».
  • Page 30 check the residual DC voltage with a volt- meter. Then you may work on the termi- nals. See chapter 2.1. · Always disconnect the PV generator side first by opening the PV generator switch; then interrupt the grid connection by iso- lating (switching off) the corresponding grid fuse! ·...
  • Page 31 Communication Interfaces The communication interfaces enable you to retrieve operating data from the data memory with an external computer and to change certain settings. There are several communication interfaces: USB, RS232, and RS485. The standard communication interface is the USB interface which is installed in every common PC or Notebook.
  • Page 32 · RS485 Wiring Solar Inverters NT 10000 can be cross-lin- ked via RS485. When doing so, please keep in mind that the Solar Inverters must be connected in series. Cross-linking them point-to-point is not admissible. Interface RS485 is connected via the printed circuit board terminals and the corresponding M12 cable glands inside the housing.
  • Page 33 Inverter 1 Jumper SPARE RS485MATCH RS485 connection Interface transformer USB/RS232 · Release the pressure from the screw- driver. The cable is now attached to the connection. · Make sure the cable is connected tightly. Inverter 2 Inverter 3 SPARE RS485MATCH SPARE RS485MATCH...
  • Page 34 Connecting the Alarm Relay All Sunways Solar Inverters are equipped with a potential-free alarm relay. The relay is designed as a make-contact element and is always triggered when the device reports an error. That ensures that any faults in the PV system are reported quickly and reliably on site.

  • Page 35: Indicator Light

    The terminals are designed for a cable cross-section of 0.2 mm to 1.5 m When selecting the dimensions of the cross-section, please keep the power consumption of the connected indicator module in mind! Paralleled alarm relays of several Solar Inverters INVERTER INVERTER INDICATOR LIGHT...
  • Page 36 Connecting the Insolation and Temperature Sensor The optional insolation sensor (type Si-01TC-T by Ing.-Büro Mencke & Tegt- meyer) with its integrated PT-100 tempera- ture probe for measuring the temperature lets you record the insolation data and the corresponding module temperature and store them in the internal data memory as a 15-minute average value.
  • Page 37 · Allocation of the cable terminal block: Sensor pin name Pin allocation sensor connector Pin 1 Plus signal temperature Plus signal insolation intensity Pin 2 Plus connection supply +5 V Pin 3 Pin 4 Earth reference · Use a small screwdriver. Press the orange terminal.
  • Page 38 Commissioning the Solar Inverter Prior to starting up the Solar Inverter, move the housing cover downwards by releasing the lateral fixation on the right lower side of the housing and pulling the four lateral hexagon socket screws tight. Do not deposit any objects (e. g. this manual) on the housing of the Solar Inverter.
  • Page 39 Start-up (without DC main switch) 1. Connect the Tyco Solarlok connectors to your Solar Inverter. 2. Start-up the AC side. Shut-down (with DC main switch) 1. Disconnect the PV generator side by opening the DC main switch. 2. Open the grid connection by isolating (switching off) the corresponding grid fuse.
  • Page 40 Operating Instructions...
  • Page 41 Operating the Display A dot matrix LCD display with 2 x 16 cha- racters is integrated in the housing of the Solar Inverter. The language of the dis- played messages can be selected (German, English, Spanish, Italian, or French). The four arrow keys to the right of the display are for navigating the menu structure.
  • Page 42 If a displayed value can be changed, an arrow is shown behind it. In this case, press the RIGHT arrow key to reach the «edit« mode. The current power and voltage values are displayed separately for each of the three energy units.
  • Page 43 Power (kW) DC current (A) DC voltage (V) AC current (A) AC voltage (V) Temp. module (°C) Insolation (W/m Date / Time Error display Today’s yield Yesterday’s yield Monthly yield Annual yield Total yield Address RS485 Date / Time Language LCD contrast Total yield Works menu...
  • Page 44 Configuring the Solar Inverter You can enter the following settings in your Solar Inverter: · set RS485 address · set date / time · set display language · set LCD contrast · set total yield Please note that the configuration can only be changed when the Solar Inverter is ope- rating.
  • Page 45 The following measured values are stored in your Solar Inverter NT 10000: 15 minutes average values (500 data records, each with date/time): · DC current ·...
  • Page 46 In addition, the following total injected energy values (electrical output) are stored: · daily yield (40 days) · monthly yield (13 months) · total yield (since commissioning) The last 100 errors of the Solar Inverter are stored with their date, time, and error number.

  • Page 47: Communication Link

    Communicator, please look up the infor- mation on the enclosed CD ROM. Communication Link Every Sunways Solar Inverter NT 10000 is equipped with the interfaces RS232, RS485, and USB, by which it can be connected to your PC. If the PV system and the PC are far apart, the data can also be retrieved via a modem link.
  • Page 48 Modem types not recommended by Sunways are not necessarily guaranteed to work. For the remote modem to automatically respond to an incoming call and open the line, it has to be initialised with the Sunways Monitor software prior to instal- lation.
  • Page 49 Linking and Interconnecting Possibilities Depending on the distance to be overcome and the number of Solar Inverters, there are the following linking possibilities: Type of Link Distance Sunways PC not more than Monitor Direct 5 - 25 m away Link Sunways PC not more than Monitor Local...
  • Page 50 The cables and interface transformers that should be used are shown in the following diagrams. (1) Local link with a maximum distance of 25 m between the Solar Inverter and the PC SUB-D9 connector (Sunways cable type 1, null modem cable female / female (alternative: Sunways cable type 5, USB-device cable) (2) Local link with an interface transformer between the Solar Inverter and the PC Connection bar...
  • Page 51 (3) Remote link with a modem between the Solar Inverter and the PC Sub-D9 connector SUB-D9 hub (Sunways cable type 2 modem cable hub/connector) (4) Local link for up to 99 Solar Inverters with a maximum distance of 25 m between the Solar Inverters and the PC RS485 SPARE...
  • Page 52 (5) Local link for up to 99 Solar Inverters (IT or USB) RS485 SPARE RS485MATCH RS485 SPARE RS485MATCH RS485 SPARE RS485MATCH Ad (5): Local Link for up to 99 Solar Inverters With this interconnection, up to 99 Solar Inverters can be cross-linked and read out. That results in a maximum RS485 cable length of 500 m between the Solar Inverters and the interface transformer.
  • Page 53 With all other Solar Inverters, it has to be in the open position. (6) Remote link for up to 99 Solar Inverters with an interface transformer and a modem RS485 SPARE RS485MATCH RS485 SPARE RS485MATCH RS485 SPARE RS485MATCH (twisted pair cable) To identify the individual Solar Inverters, a clear RS485 has to be assigned to each of them.
  • Page 54 Ad (6): Remote Link for up to 99 Solar Inverters If you wish to connect several Solar Inverters to the remote monitoring system, the individual Solar Inverters must be cross- linked via RS485. The RS485 signal of the first Solar Inverter in the row is transferred into the interface transformer with the fol- lowing allocation: «RS485 +»...

  • Page 55: Error Display

    Error Display Your Solar Inverter works fully automatically. Should external or internal factors neverthe- less lead to an error, an error number will be flagged on the display. Below, you will find a description of the error for each error number.
  • Page 56 Errors 007 to 009 · Overheating Your Solar Inverter is designed for an ambient temperature of up to +40° C. If the maximum temperature of the heat sink is exceeded, the injection will stop. When the heat sink temperature has dropped, the Solar Inverter will automa- tically restart.
  • Page 57 Errors 017 to 019 · AFI fault current The error «AFI fault current» occurs if fault current has penetrated the PV system and the Solar Inverter has subsequently discon- nected from the grid. The earth fault is monitored on the AC and on the DC side (universal current sensitive FI).
  • Page 58 Error 027 · Grid overvoltage 3-phase Your Solar Inverter is equipped with an intrinsically safe 3-phase grid monitoring system that complies with E DIN VDE 0126- 1-1. The voltage level of phases L1, L2, and L3 is continuously monitored. If it rises above the maximum admissible limit value, the Solar Inverter will stop the injection and only restart when the voltage value...
  • Page 59 There are two «D302» and «D304» LEDs each on the three control circuit boards; they describe the current status of the Solar Inverter: LED green Led red blinking LED green blinking LED red Led green LED red Illustr.: Operation indicator LED Solar Inverter is operating normally Solar Inverter has detected a fault Internal control fault...

  • Page 60: Error Diagnosis

    Error Diagnosis You can look up error causes yourself in the following list. Select the occurred error, and read the «Remedies» to find out how to eliminate it. Error Causes Errors 001 to 003 The maximum DC voltage DC overvoltage has been exceeded.
  • Page 61 Error Causes Objects have been deposi- ted on the heat sink, obstructing the convection. Errors 010 to 012 The grid voltage of the Grid under- injecting phase is too low. voltage 1-phase The Solar Inverter monitors the lower and upper admis- sible grid voltage limits.
  • Page 62 Error Causes If the voltage exceeds the upper limit (U the Solar Inverter will auto- matically switch off and will only restart when the volta- ge value drops below the upper limit again. The shut- down can already be trig- gered if the voltage drops below the lower limit for a short time.
  • Page 63 Error Causes Error 016 The grid voltage is too low. Grid under- The Solar Inverter monitors voltage 3-phase the lower and upper admis- sible grid voltage limits in 3-phases. If the voltage drops below the lower limit = 184 V), the Solar Inverter will automatically switch off and will only restart when the voltage...
  • Page 64 Error Causes Errors 020 to 022 During start-up, the Solar Insulation fault Inverter has detected an insulation fault in the PV system. Errors 023 to 025 The Solar Inverter has detec- DC injection ted a DC share > 1 A in the grid current.
  • Page 65 Error Causes Error 027 The grid voltage is too high. Grid overvoltage The Solar Inverter monitors 3-phase the lower and upper admis- sible grid voltage limits in 3-phases. If the voltage exceeds the upper limit = 264 V), the Solar Inverter will automatically switch off and will only restart when the voltage...
  • Page 66 Error Causes Errors 031 to 033 The grid voltage of the Grid overvoltage injecting phase is too high. > 10 % The Solar Inverter monitors the lower and upper admis- sible grid voltage limits. If the voltage exceeds the upper limit by 10 % (U 253 V), the Solar Inverter will automatically be discon- nected from the grid after...
  • Page 67 Error Causes Error 038 The back-up battery on the Back-up battery interface circuit board is empty empty. Display is blank, The display contrast is bad, despite sufficient because the temperature is injection high. The display circuit board is not supplied with electricity. The PV generator is (partly) covered with snow.
  • Page 69 Appendix...

  • Page 70: Tyco Solarlok Connectors

    Tyco Solarlok Connectors · Tyco Solarlok connectors may only be connected to permanent lines! · They may not be disconnected under load! · For this purpose, interrupt the electric circuit at a suitable point! Put a corre- sponding sticker on the lines near the Tyco Solarlok connector! ·...
  • Page 71 With Tyco Solarlok connectors, different kinds of annular contacts are used for dif- ferent conductor cross-sections. Make sure to use the right tools for these cross-sec- tions. The enclosed Tyco Solarlok connec- tors are equipped with annular contacts for a cable cross-section of 4 mm. The enclosed seals have an internal diameter of 6 mm (for lines with a cladding diameter of 5.3 to 6.2 mm) and 8 mm (for lines with...

  • Page 72: List Of Special Terms And

    List of Special Terms and Abbreviations Designation Description Alternating Current: grid current AFI, RCD Operator protection in the event of residual currents AFI: Universal Sensitive Residual Current RCD: Residual Current Device Direct Current PV generator side of the solar inverter Electromagnetic Compatibility Electricity Board Interface Converter...
  • Page 73 Designation Description Maximum Power Point Grid impedance Resistance of grid, impedance Temperature sensor Photovoltaic PV generator switch DC load break switch to cut off the PV generator from the solar inverter...
  • Page 74 Technical Data NT 10000 Model Recommended solar generator output Nominal input Standby consumption Night consumption Injection starts from Nominal voltage UMPP voltage range No-load voltage Turn-on voltage Turn-off voltage Maximum current Nominal current Number of inlets Maximum efficiency level European efficiency level (weighted) HERIC ®...
  • Page 75 Grid voltage monitoring Earth-fault monitoring Insulation monitoring Frequency monitoring DC monitoring Outlet characteristics Grid connection fuse rating Required number of phases per grid connection Number of injection phases (230 V single-phase) Data interfaces Sensor interfaces Display Level of protection against environmental factors Max.

  • Page 76: Conformity And Safety

    PV system, a check of the EMC characteristics through the final product manufacturer is practical. Changes reserved. The currently valid issue is available upon request. Solar Inverter Sunways AG, Photovoltaic Technology Macairestr. 3 - 5, D - 78467 Konstanz, Germany Sunways NT 10000 15 September 2005 Standard EN 50178, EN 60950 Title...
  • Page 77 The currently valid issue is available upon request. Solar Inverter Sunways AG, Photovoltaic Technology Macairestr. 3 - 5, D - 78467 Konstanz, Germany Sunways NT 10000 15 September 2005 Standard EN 50082-2 (EN 61000-4-2, -4-3, -4-4, -4-6, -4-8) EN 55014-1; EN 55011; EN 61000-3-2;...
  • Page 78 Explanations Sunways Solar Inverters of series NT 10000 are Solar Inverters that inject in three-phases and are not capable of isolated opera- tion. The NT 10000 consists of three single-phase inverters with a three-phase voltage monitoring system that inject into different phases.

  • Page 79: Terms And Conditions Of

    Terms and Conditions of Guarantee · Duration of Guarantee The duration of guarantee is five years, starting from the day the Solar Inverter is purchased by the end user. The gua- rantee chard enclosed with the device must be completed and sent back to Sunways AG.
  • Page 80 packaging, prior to having the device pic- ked up. We will be glad to send you a new packaging against payment. · Exclusion of Liability Claims and liability for damage directly or indirectly caused by the following reasons are excluded: ·...

  • Page 81: General Exclusion Of Liability

    Without a prior written permission of Sunways AG and the Sunways licensors, no part of this document may be reproduced in any form. Registered trademark Sunways NT 10000 and the Sunways logo are registered trademarks of Sunways AG, Constance, Germany. ® HERIC is a registered trademark of Fraunhofer Gesellschaft, Munich, Germany.
  • Page 82 Sunways AG Photovoltaic Technology Macairestraße 3 - 5 D - 7 8 4 6 7 Konstanz Telefon + 49 7531 996770 Fax + 49 7531 996774 4 4 E-Mail info @ sunways.de www. sunways.de Technische Hotline +49 7531 99677577...

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