Sputnik Engineering SolarMax S Series Instruction Manual
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Sputnik Engineering SolarMax S Series Instruction Manual

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SolarMax S-Serie
20S / 35S
Gerätedokumentation
Documentación del dispositivo
BAUART
GEPRÜFT
TYPE
TÜV
Rheinland
APPROVED
Product Safety
Instruction manual
Documentazione dell'apparecchio
Documentation d'appareil

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Summary of Contents for Sputnik Engineering SolarMax S Series

  • Page 1 SolarMax S-Serie 20S / 35S Gerätedokumentation Instruction manual Documentation d’appareil Documentación del dispositivo Documentazione dell’apparecchio BAUART GEPRÜFT TYPE TÜV Rheinland APPROVED Product Safety...

  • Page 2: Table Of Contents

    Contents About this instruction manual Target group Where to keep this manual Symbols used in this manual Safety instructions Appropriate use Description SolarMax device configuration 20S/35S Schematic circuit diagram SolarMax 20S Schematic circuit diagram SolarMax 35S Control functions Heat sink temperature limit Integrated overvoltage protection Installation Siting...
  • Page 3 Operation and fault display Graphics display LED display Menu key symbols Menu structure Communication activity Status messages Troubleshooting SolarMax Service Center Diagnosis & corrective steps Fuse failure in individual strings Maintenance Data communication Configuration of the data communications interfaces Options 10.1 MaxControl 10.1.1 Scope of services...

  • Page 4: About This Instruction Manual

    1 About this instruction manual This instruction manual contains a description of the 20S and 35S SolarMax central in- verters. It tells you how to install, commission and operate the inverters. Familiarize yourself with inverter functions and characteristics before you begin the in- stallation work.

  • Page 5: Safety Instructions

    Sputnik Engineering accepts no liability for damages resulting from using in- verters for purposes other than this. Any modi cations to the inverter performed by the system operator or the electrician without a review and approval by Sputnik Engineering are prohibited.

  • Page 6: Description

    3 Description SolarMax device con guration 20S/35S Front view Rear view Legend: No. ID Description AC circuit breaker EMC lter, AC K1, K2 Mains contactors Inductors SU40 Printed circuit board; power supply for electronic components TMS40 Printed circuit board; control unit; measurement signal acquisition CM40 Printed circuit board;...

  • Page 7: Schematic Circuit Diagram Solarmax 20S

    Schematic circuit diagram SolarMax 20S...

  • Page 8: Schematic Circuit Diagram Solarmax 35S

    Schematic circuit diagram SolarMax 35S...

  • Page 9: Control Functions

    Control functions SolarMax inverters feature state-of-the-art measuring and control electronics. With its dual processor technology, the SolarMax complies with stringent safety standards. While the main processor generates the PWM signals, the auxiliary processor continu- ously monitors the correct function. The safety parameters are always monitored by both processors.

  • Page 10: Heat Sink Temperature Limit

    Heat sink temperature limit For safety reasons the heat sink temperature is limited to 85 °C. At ambient tempera- tures of more than 45 °C the heat sink temperature may reach 80 °C. In this event the maximum inverter output is reduced temporarily. If the temperature rises above 85 °C the device switches off automatically in order to prevent thermal overload.
  • Page 11 In order to avoid unnecessary contamination of the heat sinks and fans, the inverter should only be operated in environments with minimum dust levels. Rooms with sig- ni cant dust formation (e.g. joinery or metal workshops or similar) are not suitable. The device is splashproof (IP54) and may be installed outdoors, although it must be protected from sun and rain.

  • Page 12: Casing Dimensions Solarmax 20S/35S

    Casing dimensions SolarMax 20S/35S 655 mm 455 mm Open Open Open Open Supply air Front view Side view Air out Exhaust air - PE Rear view...

  • Page 13: Electrical Connection

    Electrical connection DANGER Before you start the installation work make sure that all the provided DC and AC feed lines to the inverter are de-energised. The installation work must be performed by a quali ed electrician who adheres to the recognised rules of electrical installations and personal health and safety regulations.

  • Page 14: Installation Aids

    4.3.2 Installation aids DANGER Before working on connection terminals the DC and AC supply lines must be discon- nected. The terminals are accessible at the front by opening the front panel. To feed the cables into the terminals release the two retaining screws in the aluminium plate below the DC disconnecting switch and lower the swing with the string fuses.

  • Page 15: Mc4 Terminals

    4.3.3 MC4 terminals Never disconnect under load! Max. 900 V Max. 10A / String The SolarMax 20S has 7 string terminals (A), the SolarMax 35S has 14 (A+B). Each string is protected with a fuse. Further information can be found in section 8.3.

  • Page 16: Terminals Solarmax 20S/35S

    4.3.4 Terminals SolarMax 20S/35S DC+ DC- UT35 UT35 UT35 UT35 UT35 UT35 UT35 UT35 On the AC and DC side wires and strands with a maximum cross-section of 35 mm² can be used, for the status signalling contact up to 4 mm². 4.3.5 Status signalling contact The status signalling contact is used for remote monitoring.

  • Page 17: Communications Sockets

    1 or 30 V continuous current: 4.3.6 Communications sockets The inverters in the SolarMax S series have two RJ45 sockets for data communications within a MaxComm network: The left-hand RJ45 socket (RS485/ETHERNET) can be used both as a RS485 and as an Ethernet interface, the desired function can be toggled in the “Settings”...

  • Page 18: Commissioning

    5 Commissioning After you have tested all the electrical connections and ensured that they are all rmly secured, the inverter can be commissioned. In particular you must ensure that all the terminals are tightened, the protective line connection is correctly made and the polarity of the PV generator is correct.

  • Page 19: Switching On And Off

    5. Confirming the entries Now con rm the completion of the initial setup with the button CAUTION The individual country settings (step 3) must be entered with extreme care. Once the initial setup is completed the selections are permanently set and can no longer be modi ed.
  • Page 20 Switching on: The LCD should become active after 20 seconds max. (provided minimum irradi- 1. Set the DC circuit breaker to “ON” ance is available). 2. Set the AC circuit breaker to “ON” After a few seconds the “Overview” 3. Immediately close the SolarMax menu will appear on the LCD.

  • Page 21: Auto Test

    6 Auto Test The Auto Test function is required according to the Italian DK5940 standard. It enables veri cation of the voltage and frequency monitoring function. The Auto Test option is only available in the main menu if „IT” (Italy) was selected as the installation location during Initial Setup (section 5.1).

  • Page 22: Procedure

    4. The Auto Test now runs automatically. NOTE If a fault occurs during the tests or the irradiance is too low, the Auto Test is aborted and the message „Auto Test aborted“ appears in the display together with an associ- ated error message.
  • Page 23 Minimum voltage 1. The set voltage monitoring threshold Uac min is displayed. 2. The threshold value is incremented linearly until it reaches the current value of the highest phase of the mains voltage and mains monitoring is triggered. 3. The trigger value, the delay time, the current value and the default voltage monitoring value (Uac min) are displayed.

  • Page 24: Operation And Fault Display

    Minimum frequency 1. The set frequency monitoring threshold f min is displayed. 2. The threshold value is incremented linearly until it reaches the current mains frequen- cy value and mains monitoring is triggered. 3. The trigger value, the delay time, the current value and the default frequency monitor- ing value (f min) are displayed.

  • Page 25: Menu Key Symbols

    Menu key symbols Seven symbols are used for menu prompting. Symbol Function / Description Scrolling upwards / increment number, or next element Scroll down or previous element Back to higher-level menu Select next number Shows the required submenu or stores any changes Starts edit mode for the selection Cancel...
  • Page 26 Settings Language Time Date Device address Ethernet Netmask TCP port Auto Test* Information * Only with country setting IT (see section 6) Use the arrow keys to select the required menu. Use the key to switch to the selected menu.
  • Page 27 Overview If none of the three keys is pressed for 120 seconds the display automatically switches to the Overview menu, which shows the three main parameters and the operating status. Measurement readings The following measurement readings can be displayed: current solar generator voltage current solar generator current Uac (L1, L2, L3) current mains voltage...
  • Page 28 Long-term measurement readings The following long-term measurement readings can be displayed: Days Months Years Total Reset Use the arrow key to select the required menu. Use the key to switch to the selected menu. Use the key to switch back to the main menu. Daily yield Maximum power fed to the grid Operating hours...
  • Page 29 Monthly yield Maximum power fed to the grid Operating hours Use the arrow keys to display the yields for the last 12 months. Use the key to switch back to the Statistics menu. Annual yield Maximum power fed to the grid Operating hours Use the arrow keys to show the yields for the last ten years.
  • Page 30 Use the key to con rm resetting of all statistics. Use the key to exit the menu without resetting the statistics. Configuration The following limit values and operating parameters cannot be modi ed via the graphics display, because they are part of the country-speci c settings. Country The installation country set during commissioning is displayed here...
  • Page 31 Use the arrow keys to display any value. Use the key to switch back to the main menu. Settings The following settings can be implemented via the graphics display: Language Language selection: German, English, French, Italian or Spanish Time Internal clock setting Date Current date setting Device address...
  • Page 32 Use the arrow key to select the required parameter. Use the key to switch to edit mode for the selected parameter. Use the key to switch back to the main menu. In edit mode each digit is modi ed individually. Example: use the key to increment the selected digit.

  • Page 33: Communication Activity

    Use the key to switch back to the main menu. Communication activity If the symbol in the top line of the display is lit the inverter has received data. Symbol Mode Function / description No communication (no symbol is displayed) Communication activity;...
  • Page 34 Mains operation Maximum output The inverter limits the output to the maximum LED: green power of the device (this may happen if the solar generator is oversized). Mains operation The inverter is connected the mains and is operating in feed mode. Idc limitation The inverter limits the solar generator current to the maximum permissible value (this may...

  • Page 35: Troubleshooting

    8 Troubleshooting Sputnik Engineering delivers only SolarMax inverters which have stood up to our exten- sive testing regime. Moreover, each inverter is subjected to several hours of endurance testing under full-load conditions. If despite this your PV power plant suffers a malfunction or an error we recommend these...

  • Page 36: Solarmax Service Center

    +34 902 16 06 26 Belgium +32 2 535 77 32 Czech Republic +420 222 191 456 United Kingdom +44 208 973 2556 Other countries +41 32 346 56 06 +41 32 346 56 26 Email hotline@solarmax.com Sputnik Engineering AG Höheweg 85 CH-2502 Biel-Bienne...

  • Page 37: Diagnosis & Corrective Steps

    Diagnosis & corrective steps Malfunction: no display on the graphics display Possible cause Measures DC isolator switched off. Switch on DC isolator. Irradiance too low. Wait until irradiance is high enough. Strings interrupted. Rectify interruption. Internal fault. Notify SolarMax hotline. Malfunction: (LED orange) Status message: Udc too high Possible cause...
  • Page 38 Malfunction: (LED orange) Status message: Udc too high Possible cause Measures Status message: Overtemperature The ambient temperature is too high. Clean the ventilation grilles and ensure adequate distances from obstacles (approx. Insuf cient air circulation. 30 cm) front and back and/or improve room ventilation.

  • Page 39: Fuse Failure In Individual Strings

    The following error messages can be displayed only during SolarMax initialisation. They indicate a device fault: Fault Remedy SUPPLY FAULT ADC REFERENCE ERROR Contact the SolarMax hotline. ERROR EEPROM CONFIGURATION ERROR Fuse failure in individual strings A maximum of 7 strings can be connected to the SolarMax 20S and 14 to the SolarMax 35S.

  • Page 40: Data Communication

    9 Data communication For PV power plants equipped with SolarMax inverters Sputnik Engineering provides the MaxComm communications platform. This provides many ways of recording data and monitoring your PV power plant.. Below is an overview of the current products. NOTE You can nd detailed information on our website at www.solarmax.com.

  • Page 41: Configuration Of The Data Communications Interfaces

    Con guration of the data communications interfaces In order to use the RS485 and Ethernet communications interfaces, you must enter the following settings in the “Settings” display menu: Device address If you connect several inverters into one network you must assign each device its own address.

  • Page 42: Options

    The agreement can be renewed no more than eighteen times. The total term of the package is thus twenty years and three months. NOTE You can obtain further details about MaxControl directly from Sputnik Engineering. 10.2 Accessory components Here is a list of other available accessory components.

  • Page 43: Disposal

    Alternatively you may return the inverter to Sputnik Engineering for proper disposal (the address can be found in the section “SolarMax Service Center”). Please note that there is a charge for this service.

  • Page 44: Technical Data

    12 Technical data 12.1 Technical data SolarMax 20S SolarMax 35S Maximum PV genera- Input values 24 kW 45 kW tor output power MPP voltage range 400...800 V Maximum DC voltage 900 V Maximum DC current 48 A 78 A Number of MPP- Trackers 7 x MC4 connectors with 14 x MC4 connectors with...
  • Page 45 Standard 2 years / extension to 5, 10 or 12 years possible Recommended overdimensioning 15 % (ISE Fraunhofer study) All rights, amendments and errors reserved. 12.2 Ef ciency Characteristic ef ciency curve for the SolarMax S series Output power relative to rated output [%]...
  • Page 46 Efficiency SolarMax 20S relativ (500Vdc) (600Vdc) (700Vdc) 1000 85.2 86.0 88.9 2000 90.7 91.5 93.5 4000 94.0 94.7 95.6 6000 95.2 95.7 96.4 10000 95.7 96.5 96.6 20000 95.8 96.3 96.6 European efficiency 94.8 95.5 96.0 Legend: Ratio between output power and rated output [%] relativ Ef ciency at associated input voltage [%] (VDC)

  • Page 47: Configurable Limit Values And Operational Settings

    12.3 Con gurable limit values and operational settings In the SolarMax S series the following parameters can be set manually via the interface with the MaxTalk software. The settings are password-protected. A password application form can be ordered via the SolarMax hotline. The password is only made available to installers who sign the form.

  • Page 48: Guarantee

    13 Guarantee Guarantee Sputnik Engineering AG (hereafter: Sputnik) guarantees full function and lack of defects of its tech- nical devices for a guarantee period speci cally de ned for each type of device. This guarantee period starts to run at the moment the goods leave Sputnik’s factory. Exceptionally, in case of sale of goods to natural persons for non-commercial / private purposes, the guarantee period starts to run only from the time of delivery to the end-Buyer.
  • Page 49 In any case, guarantee-services of Sputnik are only free of charge if Sputnik has been contacted in advance and has agreed to the services to be provided. In a guarantee case, the buyer may require an appropriate reduction of the price or have the contract rescinded: if the buyer is entitled to neither repair nor replacement, or if Sputnik has not completed the remedy within a reasonable time, or...
  • Page 50 EC Declaration of conformity for grid-connected photovoltaic inverters SolarMax 20C / 20S / 25C / 30C / 35C / 35S / 50C / 80C / 100C / 300C made by Sputnik Engineering AG Höheweg 85 CH-2502 Biel/Bienne directives: EMC Directive 2004/108/EC ■...
  • Page 51 Länderspezi sche Zerti kate und Konformitäten können im Downloadbereich unter www.solarmax.com eingesehen werden Country-speci c certi cation and conformities can be found and downloaded at www.solarmax.com Les certi cats et déclarations de conformité spéci ques à chaque pays peuvent être consultés dans la zone de téléchargement, à l‘adresse www.solarmax.com Certi cados y documentos de conformidad especí...
  • Page 52 SolarMax Service Center Deutschland +49 180 276 5 276 Schweiz / Svizzera / Suisse +41 32 346 56 06 France +33 4 72 79 17 97 Italia +39 0362 312 279 España +34 902 160 626 Benelux +32 2 535 77 32 Česká...

This manual is also suitable for:

Solarmax 20sSolarmax 35s

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