Sunny Central Zentralwechselrichter
Contents
1. User Manual Sunny Central Central Inverter Edition 5 0 SC BENO72950 TBE SC ALL User Manual SMA Technologie Table of Contents Table of Contents 1 1 1 1 2 1 3 1 4 2 3 3 1 3 2 3 2 1 3 2 2 3 2 3 3 2 4 3 2 5 3 3 3 3 1 3 3 2 4 4 1 4 2 4 3 4 4 5 5 1 5 2 5 3 5 4 User Manual Notes on this 5 zo sedat Sob qc irre 5 Target OTOUBD uu suis serien 6 Applicabiliiy sur d d edo dee re 6 Docuti fifdlidlia s xx esos exem ee e age vs ia ss 6 Safety Instructions 7 Description of the Sunny Central 9 Identifying the Sunny Central 10 The Sunny Central s Control Elements 11 Sunny Central Control 11 light Indicators 4 2444 en 12 Start up Key Switch un ie ice aoo e ds 12 Emergency Shut off ka ek 12 AC WIES esee dod een rer 13 Operating 14 Operating Modes of Sunny Central 14 Operating Modes of Team 5 16 Sunny Central Control Operation 18 Functions of the Control 19 Explanation of the Display Symbols 20 Adjusting the Display Contrast 20 Adjusting Parameters and Settings 20 Sunny Central Control Menu 21 Overv2. 1 1 Symbols Used The following four types of warnings and general information appear in this document as described below A DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury N WARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury N CAUTION CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury N NOTICE NOTICE indicates a situation that can result in property damage if not avoided Information 1 Information provides tips that are valuable for the optimal installation and operation of your product User Manual SC BENO72950 5 Notes on this Manual SMA Technologie AG 1 2 Target Group This documentation is intended for Sunny Central installers and operators It includes a description of how to operate the Sunny Central Control maintenance of the Sunny Central and troubleshooting with the aid of the Sunny Central Control 1 3 Applicability This documentation describes how to operate the Sunny Central indoor and outdoor central inverters It applies for software versions 6 07 and 6 08 1 4 Documentation The following list shows the documents which you receive with your Sunny Central and the information which each respective document contains e Installation guide setup and installation of the Sunny Ce
3. 800 V 600 V Tstart 1 600 90 5 Twait 18005 600 5 PpvStop 0 10000 W device specitic setting Tstop 1 300 60 s PacMax 3 500 kW device specific setting TMax cabinet 30 70 C 50 C TMin cabinet 30 10 C 20 C 32 SC BENO72950 User Manual SMA Technologie AG Parameters 6 3 Adjusting Parameters d Impaired Functionality of Sunny Central due to Altered Parameters Improperly altered parameters can partly or completely impair the functionality of the Sunny Central e Parameters marked with may only be adjusted upon consultation with SMA see section 6 3 Adjusting Parameters 33 e After work has been carried out on the Sunny Central Control it must then be relocked in order to prevent third parties from changing the parameters Adjusting Parameters These instructions describe how you can adjust parameters at the Sunny Central Control You can use the following possibilities and tools to adjust the parameters e At the Sunny Central with the Sunny Central Control e Onsite with a laptop and the Sunny Data Control software From a PC via remote access with Sunny Data Control The Sunny Data Control documentation describes how you can adjust parameters with Sunny Data Control The Sunny Central parameters can be adjusted as follows 1 Enter the password as described in section 5 4 Entering the Password page 26 2 In the online info display press ESC ESC
4. Description 588 Error text Error type 1 Team contactor was opened Cause The Team contactor was switched off by the Team current monitoring system Corrective measures Check the triggering of the Team contactor Check the Team current monitoring system settings defect Check the Team current may be too high due to asymmetrical current distribution e Contact the Sunny Central Serviceline User Manual SC BEN072950 51 Failures and Warnings SMA Technologie AG 9 1 4 Failures No Description 104 Error text Error type 3 No Grid Synchronization Cause Left hand rotary field or internal device fault Corrective measures e Check right hand rotary field e Check whether all internal fuses are switched on e Contact the Sunny Central Serviceline 105 Error text Error type 2 Grid voltage too low Cause Voltage on the AC side is below the permitted range Corrective measures e Check the grid connections e Check grid stability 106 Error text Error type 2 Grid voltage too high Cause Voltage on the AC side is above the permitted range Corrective measures e Check the grid connections e Check grid stability 110 Error text Error type 2 UVW Range Cause Voltage on phase L1 12 or L3 outside the permitted range Corrective measures e Check the grid connections e Check grid stability 52 SC BENO72950 User
5. User Manual SC BENO72950 33 Parameters SMA Technologie AG 3 9 ON Navigate to the Device Setup menu with the 4 3x X4 arrow button and select it by pressing ENTER Set ur ENTER Navigate to the Parameters menu with the 2x 4 arrow button and select it by pressing ENTER ENTER Select the menu in which you wish to adjust a parameter by pressing ENTER Select the parameter that you would like to change by pressing ENTER Take note of the previous value of the parameter Adjust the parameter as discussed with SMA Confirm your adjustment using ENTER Mee Limit Wal Mee Tracking Start resuirent Shut down Grid Monitor Other ENTER Resetting Parameters To reset parameters proceed as described above and enter your Sunny Central s original values SC BENO72950 User Manual SMA Technologie AG Communication 7 Communication With the option NET Piggy Back the Sunny Central Control can be remotely monitored and can send you e mail reports regarding the operating mode or present failures Depending on your order preferences the Sunny Central is delivered ex works either without communication or with a NET Piggy Back in one of the three following variants Analog e ISDN e Ethernet The connection of the Sunny Central Control to the telephone line to a router or to a PC is described in the NET Piggy Back documentatio
6. s Control Elements The illustrations below represent two different Sunny Centrals and allow you to identify the approximate locations of the Sunny Centrals control elements Sunny Central 200 Sunny Central 100 open 4 Sunt AA C HER 4 A E Sunny Central Control Oo 4 Light indicator disturbance warning Sunny Team Start up key switch Emergency shutoff AC switch gt 3 2 1 Sunny Central Control Sunny Central settings can be adjusted directly at the device by means of the Sunny Central Control The functions that the Sunny Central Control performs can be grouped into the following areas e Controlling inverter operation Displaying present measuring data Adjusting Sunny Central parameters e Maximum power point tracking Recording and archiving measurement data Remote access capability with NET Piggy Back Connection of external sensors User Manual SC BENO72950 11 Description of the Sunny Central SMA Technologie AG 3 2 2 Light Indicators Three light indicators are situated on the front of the Sunny Central If an error occurs the type of disturbance is shown by these light indicators e Yellow The Sunny Central is in Alert mode The Sunny Central does not switch itself off Once the error is no longer present the
7. 1 Remote Info Page 35 2 Navigate to the Recipient menu with the 4 2x 4 arrow button and select it by pressing ENTER Events Recirient ENTER 3 On the first line enter a company name Confirm your entry using ENTER 4 second line enter your name Confirm your entry using ENTER 5 Enter your email address on the third line Confirm your entry using ENTER EMAIL TO 6 On lines four and five you can specify two additional e mail addresses to which the reports are to be sent Confirm your entry using ENTER EMAIL CCL User Manual SC BENO72950 37 Communication SMA Technologie AG 7 4 Selecting the Report Types to Send 1 Select the Remote Info menu as described in section 7 1 Remote Info page 35 2 Navigate to the Events menu with the arrow 2x 4 button and select it by pressing ENTER Events Recirient ENTER 3 In the Events menu you can specify which reports you wish to have sent to you and when daily rerort Errors ourls rerort 38 SC BENO72950 User Manual SMA Technologie AG Communication Menu item Description Possible settings Plant Info reports the present values of your system report e g E Total E Today e daily report recommended Warnings reports the generated warning messages report e hourly report daily report recommended Errors reports the fail
8. down and the disturbance will be displayed by the Sunny Central Control If several disturbances or warnings are present the Sunny Central Control shows the disturbance which has the highest priority It alternates between the present online info display and the failure message A failure message appears in the display as shown below A B A Failure warning number B Reason for failure warning in plain text 9 1 Fault Diagnosis 9 1 1 Categories of Failures and Warnings The failure numbers and warning numbers are allocated to different areas of the Sunny Central Numerical range Category of failure warning 100 to 179 grid faults 180 to 199 grid warnings 200 to 279 cabinet hardware failures 280 to 299 cabinet hardware warnings 300 to 379 Sunny String Monitor failures 380 to 399 Sunny String Monitor warnings 400 to 479 stack hardware failures A80 to 499 stack hardware warnings 500 to 579 Team failures 580 to 599 Team warnings 46 SC BENO72950 User Manual SMA Technologie AG Failures and Warnings 9 1 2 Types of Failures and Warnings Sunny Central failures and warnings are subdivided into four types Error Type 1 Warning The Sunny Central does not switch itself off Once the error is no longer present the error message is reset automatically Check the system Error Type 2 Failure The Sunny Central switches itself off Once the fault is no longer present the
9. error message is reset automatically Check the system e White The Sunny Centrals are operating in Team mode The Team contactor is activated e Red The Sunny Central is in Failure mode If the Sunny Central has detected a failure it shuts down Once the fault has been removed and confirmed it resumes operation For more information see section 9 1 2 Types of Failures and Warnings Page 47 3 2 3 Start up Key Switch The startup key switch activates or deactivates the Sunny Central When this switch is turned to the Start position the Sunny Central changes from Stop mode to Wait mode If there is sufficient radiation the Sunny Central changes to the Startup mode and subsequently begins grid feeding If the radiation and thus the input voltage is too low the Sunny Central remains in Wait mode If the startup key switch is turned to the Stop position the DC switch is deactivated automatically by a motor drive 3 2 4 Emergency Shut off NOTICE o Improper use of the emergency shut off switch causes damage to the Sunny Central The Sunny Central s components are subjected to considerable stress if the emergency shutoff switch is used under load This can irreparably damage individual components e Only use the emergency shutoff switch in an emergency e switch off the Sunny Central use the startup key switch The emergency shut off switch immediately disconnects the Sunny Central from the
10. grid The Team member changes to the PV linked mode The Team leader and the Team member operate as a Team Disconnecting The Team member is in Team mode The Team leader is in Team leader mode Both Sunny Centrals are feeding into the grid If the Team leader s output exceeds the value of P NextTeam default setting 80 the DC contactor is switched off Both Sunny Centrals then operate individually and feed into the grid Linking Evenings If the Team leader s AC output falls below the value of P PrevTeam default setting 20 the Team contactor is switched on The Team leader feeds the entire system power into the grid and is in the Team leader mode The Team member is in PV linked mode Night Operation If the Team leader s open circuit voltage is below UpvMin 100 V for 30 minutes the Team contactor is disconnected The Team leader changes to Startup mode The Team member changes to Team mode 16 SC BENO72950 User Manual SMA Technologie Description of the Sunny Central Failures If when in Team mode a failure occurs the Team mode is immediately interrupted and the Team contactor is disconnected The Sunny Centrals continue to operate individually until the failure is rectified If a failure is present for more than 60 minutes Team mode can be resumed For Team mode to be possible while a failure is present at a Sunny Central the following conditions must be fulfilled com
11. of an insulation fault check strings under load free conditions Separate and connect individual strings to determine which string is faulty e Check the function of the ground fault monitor e Switch biasing circuit breaker of the transformer back on 283 Error text Error type 1 cabinet Temp Cause The threshold value parameter TMin or TMax for the permissible cabinet temperature has been breached too high or too low Corrective measures e Check function of cabinet cooling fans e Clean or replace dirty air filters e Check ambient temperature and adjust if necessary 48 SC BENO72950 User Manual SMA Technologie AG Failures and Warnings No Description 380 Error text Error type 1 SMU Cause The string monitoring system has detected one or more faulty strings or overvoltage protectors Corrective measures e Under Device Set up gt SMUs gt Devices gt Measured Values read out the individual string currents to detect the faulty string More detailed information can be found in the Sunny String Monitor manual 381 Error text Error type 1 ser com with SMU disturbed Cause Communication failure between Sunny Central and the Sunny String Monitors Corrective measures e Check communication lines and connections e detailed information can be found in the Sunny String Monitor manual 382 Error text Error type 1 thievery solar panel Cause Sig
12. or the Sunny Central Control may be faulty Corrective measures e Check the RS485 wiring e If this error is always present contact the Sunny Central Serviceline 408 Error text Error type 3 PV Overvoltage Cause DC voltage is too high on the generator side software Corrective measures Immediately disconnect the solar generator from the Sunny Central Risk of damage to the Sunny Central e Check DC voltage e Check module wiring and system design 56 SC BENO72950 User Manual SMA Technologie AG Failures and Warnings No 409 Description Error text Error type 3 IGBT Stack Temperature Cause Heatsink temperature is too high software Corrective measures e Check function of the cooling fans of the inverter bridge e Clean soiled air inlet or heatsink e Ambient or cooling air temperature too high e If this error occurs frequently contact the Sunny Central Serviceline 410 Error text Error type 3 IGBT Stack Error Sum Cause Internal failure of the inverter bridge e g DC overvoltage overtemperature defective driver overcurrent Corrective measures If this error occurs frequently contact the Sunny Central Serviceline 411 Error text Error type 3 Overcurrent or UVW phase fault ADAPSCP Cause Internal inverter bridge failure Corrective measures If this error occurs frequently contact the Sunny Central Servicelin
13. warning number Sunny Central display message ALMT Address SMA Technologie AG Hannoversche Strasse 1 5 34266 Niestetal Germany Tel 49 561 95 22 299 Fax 49 561 95 22 4698 sunnycentral service SMA de www SMA de 64 SC BENO72950 User Manual SMA Technologie AG Contact User Manual SC BENO72950 65 Legal Restrictions SMA Technologie AG The information contained in this document is the property of SMA Technologie AG Publishing its content either partially or in full requires the written permision of SMA Technologie AG Any internal company copying of the document for the purposes of evaluating the product or its correct implementation is allowed and does not require permission Exclusion of liability The general terms and conditions of delivery of SMA Technologie AG shall apply The content of these documents is continually checked and amended where necessary However discrepancies cannot be excluded No guarantee is made for the completeness of these documents The latest version is available on the Internet at www SMA de or from the usual sales channels Guarantee or liability claims for damages of any kind are exlcuded if they are caused by one or more of the following Improper or inappropriate use of the product Operating the product in an unintended environment Operating the product whilst ignoring relevant statutory safety regulations in the deployment location Ignoring safety warnings and inst
14. 266 Niestetal Germany Tel 49 561 9522 0 Fax 49 561 9522 100 www SMA de E mail info SMA de 2005 SMA Technologie AG All rights reserved 66 SC BENO72950 User Manual 5 5 Solar Technology SMA Technologie AG Hannoversche Strasse 1 5 34266 Niestetal Germany Tel 49 561 9522 4000 Fax 49 561 9522 4040 E Mail Info SMA de Freecall 800 SUNNYBOY Freecall 800 78669269 AA De ni 4 Innovation in Systems Technology Via for the Success of Photovoltaics
15. 5 4 Entering the Password d Password You can obtain the password from the Sunny Central Serviceline This can be reached on the following telephone number 49 561 9522 299 Safety relevant Sunny Central parameters can only be adjusted upon entry of a password To enter the password proceed as follows 1 In the online info display press ESC ESC 2 Navigate to the Device Setup menu with the 4 3x 4 arrow button and select it by pressing ENTER 3Devuice Set ur ENTER 3 Select Password by pressing ENTER ENTER 4 Enter the password 5 Ifthe correct password is entered the Sunny Central Control beeps three times If the password is incorrect the Sunny Central Control beeps once ENTER 26 SC BENO72950 User Manual SMA Technologie AG Sunny Central Control Menu Locking the Sunny Central Control You can relock the Sunny Central Control under the menu item Password by entering an incorrect password or no password Password protection will automatically resume at midnight or upon a restart User Manual SC BENO72950 27 Parameters SMA Technologie AG 6 Parameters The Sunny Central s parameters are pre configured for operation It is a good idea to adapt a number of the Sunny Central s parameters to the solar generator The Sunny Central s parameters are subdivided into six menus Mpp Limit Val Threshold values for MPP mode e MPP Tracking Settings for
16. ER 1 or ENTER You can switch between the three online info displays with the buttons T or ENTER If a warning or failure is reported the display will alternate between the present online info display and the error with the highest priority User Manual SC BENO72950 21 Sunny Central Control Menu 5 1 Overview of the Menu SMA Technologie AG The Sunny Central Control menu is subdivided into four main menus The four main menus and their subcategories can be seen in the table below Main menu Operating Data 1st menu level Faults 2nd menu level Plant Status Energy Yield E Total E Today Data Files Meas Interval Daily Values Meas Channels Other Operating Time Working Time Startup counter Fault counter Alert counter Spot Values PV Ppv Vpv Ipv Grid Pac fac lac Vac Phase 1 Vac Phase 2 Vac Phase 3 Other Temp SC Temp 1 Riso Mppsearchcount Team Function Long Term Data Meas Chn Energy Yield Daily Values Plant Status Reports Faults Device Set up Password System Language Date Time Inverter Type BF_UZWK_Norm SC_Firmware Parameters Param Function Mpp Limit Val Mpp Tracking Start requiremt Shutdown requ Grid Monitor Other INTERFACES Communication Analog In Digital In Digital Out Data archives Data Recording Meas Interval Max Storage Chan Select SMUs Devices Para
17. MPP mode e Start requiremt Parameters for startup of the Sunny Central Shutdown requ Parameters for the regular shutdown of the Sunny Central Grid Monitor Parameters for grid conditions e Other Various additional functions e g the Team function 28 SC BENO72950 User Manual SMA Technologie AG Parameters 6 1 Description of the Parameter Functions The following parameters can be found in the menus Parameters marked with may only be adjusted upon consultation with SMA Parameter Description of the function Mpp Limit Val VmppMin Minimum MPP voltage required for the Sunny Central to feed dVreference MPP tracking is possible within a range equal to 2 x dUreference As soon as the voltage drops or rises outside of this range the inverter goes into MPP Search mode Default setting 80 V Recommendation for operation with thin film modules 120 V PsearchMpp the currently measured solar power drops below the value PsearchMpp for the duration of TsearchMpp the Sunny Central begins to search for the MPP again TsearchMpp MPP Tracking dVtrack During MPP tracking the inverter changes the voltage in dUtrack _ steps at TcheckMpp intervals before it selects the MPP TcheckMpp Mpp Factor The start value for MPP tracking is obtained by multiplying the MppFactor parameter by the measured open circuit voltage Default setting 0 80 Recommendation f
18. Manual SMA Technologie Failures and Warnings No Description 111 Error text Error type 2 Grid frequency too high or too low Cause Frequency on the AC side is outside the permitted range Corrective measures e Check the grid connections e Check grid stability e Check right hand rotary field 201 Error text Error type 2 Ground Fault 2 or plant temp too high Cause e overtemperature fault chain is interrupted refer to the wiring diagram 9 Cabinet overtemperature Transformer overtemperature e Diode overtemperature e The insultation resistance of the solar power system is lower than the set threshold value e GFDI tripped Corrective measures e Check function of cooling fans e Clean or replace dirty air filters e Ambient or cooling air temperature too high e Check solar generator s insulation resistance e Inthe event of an insulation fault separate and connect individual strings to detect the faulty one e Check the function of the ground fault monitor e Check the see Additional Notes for Sunny Central M P Inverters for Grounded Operation of the Solar Generator User Manual SC BENO729 Cn N N 53 Failures and Warnings SMA Technologie AG No Description 206 Error text Error type 4 Emergency shutdown activated Cause Own emergency shutoff of the inverter activated Corrective meas
19. alue measured in a range between MI and Mu D is the value displayed in a range between DI and Du Gain G Du DI Mu MI Offset O DI G Displayed value D G M O Explanation of the Abbreviations Used M measured value Mu upper end of measuring range MI lower end of measuring range offset G gain D displayed value Du upper end of display range DI lower end of display range AA SC BENO72950 User Manual SMA Technologie AG External Sensors Example Calculations Pyranometer A pyranometer has an output voltage of O to 10 V This corresponds to irradiation of O to 1350 W m OV 10V DI OW m Du 1350 W m Formula Calculation Du DI Mu MI 1350 0 10 0 135 O DI G MI O 0 135 0 0 W m 5 Formula Calculation D G M O 135 5 0 675 Example Calculations Temperature Sensor A temperature sensor with a converter outputs 4 20 mA This corresponds to a temperature range of 30 to 80 C AmA Mu 20 mA 30 C Du 80 C Formula Calculation Du DI Mu MI 30 20 4 6 875 O DI G MI 30 6 875 4 57 5 C If M 4 mA Formula Calculation D G M O 4 6 875 57 5 30 User Manual SC BEN072950 45 Failures and Warnings SMA Technologie AG 9 Failures and Warnings If a failure occurs during operation the Sunny Central will shut
20. ctivation the Sunny Central seeks the solar generator s maximum power point MPP and begins feeding into the grid Shutdown The Sunny Central shuts down if e power measured during the interval Tstop is less than PpvStop afailure occurs which requires a shutdown of the Sunny Central or e startup key switch is set to Stop Failures If a failure occurs during operation the Sunny Central shuts down and the failure is shown as a disturbance in the Sunny Central Control s display Refer to section 9 Failures and Warnings Page 46 for a list of disturbances User Manual SC BENO72950 15 Description of the Sunny Central SMA Technologie AG 3 3 2 Operating Modes of Team Systems In addition to the normal operating modes Sunny Centrals which are configured as a Team system also have Team operating modes Stop If one of the two Sunny Centrals is deactivated the second Sunny Central is operated individually without Team If only the Team leader is operating it is in the Startup mode If only the Team member is operating it resides in the String Operation mode Linking Mornings The Team contactor is disconnected If the input voltage Vpv of both Sunny Centrals is greater than the PV start voltage UpvStart 50 V the Team contactor closes itself The Team leader begins to operate as soon as the start conditions are fulfilled The Team leader goes into the Team leader mode and feeds the power into the
21. e 412 Error text Error type 3 Overcurrent Cause Internal inverter bridge failure Corrective measures If this error occurs frequently contact the Sunny Central Serviceline User Manual SC BEN072950 57 Failures and Warnings SMA Technologie AG No Description 420 Error text Error type 3 ADAPSCP overtemperature Cause Heatsink temperature is too high hardware threshold Corrective measures e Check function of the cooling fans of the inverter bridge e Clean soiled air inlet or heatsink e Ambient or cooling air temperature too high e If this error occurs frequently contact the Sunny Central Serviceline 42 Error text Error type 2 ADAPSCP Overvoltage DC voltage link Cause DC voltage is too high on the solar generator side hardware threshold Corrective measures Immediately disconnect the solar generator from the Sunny Central Risk of damage to the Sunny Central e Check DC voltage e Check module wiring and system design 9 2 Confirming Errors at the Sunny Central Control 1 Rectify the cause of the fault at the Sunny Central 2 In the online info display press ESC ESC 58 SC BENO72950 User Manual SMA Technologie Failures and Warnings 3 Select Operating Data by pressing ENTER Device Set ur ENTER 4 Select Faults by pressing ENTER Data Files Other ENTER 5 Select Actual Faul
22. eam In Team systems this parameter defines the percentage of the nominal power output required for the Team contactor to close If Pac smoothed falls short of this value the Team contactor closes causing both solar generators to feed one inverter The default setting is 20 Tau FP A damping function for the switching points helps minimize the number of switchings and thus lengthen the service life of the Team contactor This parameter influences Pac smoothed User Manual SC BEN072950 31 Parameters 6 2 Default Parameter Settings SMA Technologie AG The following table summarizes the main operating parameters and includes the adjusting range and default value of each parameter The adjusting range and default value depend on the Sunny Central model The parameters shown here with a gray background are only visible adjustable after the installer password has been entered see section 5 4 Entering the Password Page 26 Parameter Range Default VmppMin 275 400 V Sunny Central LV 300 V Sunny Central LV 450 600 V 450 V dV reference 5 V 200 V Sunny Central LV 60 V Sunny Central LV 5V 200V 80 V PsearchMpp 0 25000 W device specific setting TsearchMpp 60 3600 s 600 s dVtrack 1 10V 5 V TaMp TcheckMpp 5 605 10s Mpp Factor 0 20 1 00 0 80 TrackCnt 5 20 7 VpvStart 300 600 V Sunny Central LV 400 V Sunny Central LV 450
23. enu SMA Technologie AG 3 Navigate to the System menu with the arrow 1 x 4 button and select it by pressing ENTER ENTER 4 Select Language by pressing ENTER ENTER 5 Select the desired language by pressing ENTER and confirm your selection by pressing ENTER again 2 x ENTER 5 3 Changing the Date and Time The Sunny Central s default settings for date and time correspond to the Central European time zone If you wish to adjust the date or time e g when changing from summer time to winter time proceed as follows 1 In the online info display press ESC ESC 24 SC BENO72950 User Manual SMA Technologie Sunny Central Control Menu 2 User Manual SC BENO72950 Navigate to the Device Setup menu with the 4 3x 4 arrow button and select it by pressing ENTER 3Deuice Set ur ENTER Navigate to the System menu with the arrow 1 x 4 button and select it by pressing ENTER ENTER Navigate to the Date Time menu with the 4 1x amp arrow button and select it by pressing ENTER ENTER To make an adjustment select either the date or the time by pressing ENTER You can change from day to month to year or from hour to minute by pressing the ENTER button The values can be increased or decreased with the arrow buttons Confirm your changes using ENTER N C Sunny Central Control Menu SMA Technologie AG
24. error message is reset automatically and the Sunny Central starts up again Error Type 3 Failure The Sunny Central switches itself off Error type 3 only arises if the Sunny Central is feeding the grid when a fault occurs Once the fault is no longer present the error message is reset automatically and the Sunny Central starts up again Error Type 4 Failure Error type 4 must be confirmed before the Sunny Central can resume operation The Sunny Central switches itself off Rectify the cause of the fault and confirm the error at the Sunny Central Control or with Sunny Data Control Once you have confirmed the error the Sunny Central starts up again User Manual SC BENO72950 47 Failures and Warnings SMA Technologie AG 9 1 3 Warnings No Description 281 Error text Error type 1 Ground fault or SPD defect Cause The alert chain is interrupted refer to the wiring diagram Overvoltage protector damaged e Backup fuse s damaged on the grid side or generator side if present e solar power system s insulation resistance is lower than the set threshold value e transformer s biasing circuit breaker has tripped Corrective measures e Check fault signaling of the overvoltage protectors and replace protector if necessary e Check the back up fuse s of the overvoltage protector and replace it them if necessary e Check the resistance of the solar power system In the event
25. for Maintenance Work SMA Technologie AG Maintenance work Maintenance interval recommended Read out long term data and error memory 1 month depending on system size Clean or replace the filter material in the air inlet filters 6 months Clean the insect guards at the air inlets and outlets 6 months Clean the heatsink power module 12 months Check the inside of the cabinet and the EVR resistor for heavy 12 months dust deposits dirt moisture and water penetration from outside If necessary clean the Sunny Central and employ suitable corrective measures Check all power cable connections for looseness and tighten 12 months them if necessary Check the connectors and insulation for discoloration or degradation Replace any damaged connectors or corroded contacts Check adhesive warning labels and replace if necessary 12 months Cooling fans functionality test 12 months Check all cooling fans for functionality and operating noise The fans can be switched on by adjusting the thermostats or during operation If present cabinet fan heatsink fanls internal circulation fan s diode fan heating fan Heating functionality test 12 months Functionality test of all protective equipment present 12 months e leakage current circuit breakers ine circuit breakers e power switches e molor overload switches by means of manual activation or by pressing the test b
26. grid and from the solar generator placing the Sunny Central in a safe condition When the emergency shutoff switch is pressed it locks in the Off position The emergency shut off switch can only be unlocked using its key It is also necessary to reset the emergency shut off operation with the Sunny Central Control or with Sunny Data Control 12 SC BEN072950 User Manual SMA Technologie Description of the Sunny Central The Sunny Central 100 indoor and the Sunny Central 100 outdoor have no emergency shutoff switch You have the option of installing an external emergency shutoff switch at the Sunny Central You can also install an external emergency shut off switch at the other Sunny Centrals or deactivate several Sunny Centrals with a shared emergency shut off switch 3 2 5 AC Switch NOTICE V Improper use of the AC switch may cause damage to the Sunny Central The Sunny Central s components are subjected to considerable stress if the AC switch is used under load This can irreparably damage individual components e Only use the AC switch if the Sunny Central has been set to Stop by turning the start up key switch Upon use of the AC switch the Sunny Central is disconnected from the grid on the AC side User Manual SC BENO72950 13 Description of the Sunny Central SMA Technologie AG 3 3 Operating Modes 3 3 1 Operating Modes of the Sunny Central When activated the Sunny Central passes through different
27. iew of the Menu 22 Setting the Language o ce x xoc es eme ede ees 23 Changing the Date and 24 Entering the 26 SC BENO72950 3 Table of Contents SMA Technologie AG 6 1 6 2 6 3 Zl 7 2 7 3 7 4 7 5 8 1 8 2 9 1 9 1 1 9 1 2 9 1 3 9 1 4 9 2 10 11 Parameters ia 4266 4338048500423 0505 2430233 28 Description of the Parameter Functions 29 Default Parameter 5 5 32 Adjusting Parameters ss ys sea e e te 00 33 Communication 5353934999 35 Remote lnfo o coxa erre er 35 Activating E mail 37 Entering or Changing E Mail Addresses 37 Selecting the Report Types to Send 38 Sending a Test 40 External Sensors 41 Configuring the External Sensors 41 Calculating Gain and 44 Failures and Warnings 46 Fault Diagnosis uua ved de e qoe 400404 46 Categories of Failures and 5 46 Types of Failures and Warnings 47 bap PCT 48 pr P 52 Confirming Errors at the Sunny Central Control 58 Maintenance uses REA TREE a Ra 61 Contach a due REC E ag 64 SC BENO72950 User Manual SMA Technologie Notes on this Manual 1 Notes on this Manual
28. meters Measured Values Failure NET eMail NET Remote Info 22 SC BENO72950 User Manual SMA Technologie AG Sunny Central Control Menu Operating Data The Operating Data menu provides general information about the Sunny Central This includes for example displaying energy yields operating and feed hours or information about the archive of stored data and any failures that are currently being reported Spot Values The Spot Values menu displays all available online measurement data for the system Here a distinction is made between the PV side the grid side and other measured values Long Term Data Measurement data are saved in the Long Term Data menu Here for example you can also find a list of the failures which have occurred to date Device Setup System operation and adjustment parameters are set in the Device Set up menu This allows system specific and customer specific configuration of the Sunny Central 5 2 Setting the Language The Sunny Central Control can be operated in German English or Spanish The Sunny Central s language is preset to the language specified when you placed your order If you wish to change the language proceed as follows 1 2 In the online info display press ESC ESC Navigate to the Device Set up menu with the 4 3x 4 arrow button and select it by pressing ENTER 3Deuice Set ur ENTER User Manual SC BENO72950 23 Sunny Central Control M
29. modes as pictured below When deactivated the Sunny Central resides in the operating mode Stop If the key switch is turned the Sunny Central changes to the Wait mode Failure Start switch No failure Failure Shutdown Failure Ppv lt PpvStop and T gt Tstop or switch Stop Vpv gt UpvStart und T gt Tstart Start up finished MPP load Failure operation Startup 14 SC BENO72950 User Manual SMA Technologie Description of the Sunny Central Stop The Sunny Central is deactivated The Sunny Central remains in this mode until the start up key switch is turned to the start position Wait If the input voltage is below the defined start voltage UpvStart the Sunny Central resides in Wait mode The value of the UpvStart setting is shown in the Sunny Central Control s display Startup If the input voltage is above the start voltage UpvStart the Sunny Central waits until the time defined by the parameter Tstart has passed If the input voltage has not fallen below the start voltage UpvStart during this period the Sunny Central starts up The AC contactor is closed and the Sunny Central is isolated Once the Sunny Central is ready for operation it begins grid feeding d Start Voltage UpvStart The start voltage UpvStart must be adjusted for the solar generator which is connected to the Sunny Central MPP Load Operation After successful a
30. munication between the two Sunny Centrals must be functioning e DC contactor must be functioning start up key switch must be set to the Start position e None of the following failures must be present Failure 201 Ground Fault 2 or plant temp too high Failure 206 Emergency shutdown activated If these conditions are fulfilled the Sunny Central at which no failure is present takes over the output of both solar generators User Manual SC BENO72950 17 Sunny Central Control Operation SMA Technologie AG 4 Sunny Central Control Operation The control panel Sunny Central Control is mounted in or on the Sunny Central at eye level The Sunny Central Control is operated by means of the four buttons below the four line display E4 Sunny Central Control panel sunny AMY Central A line display Control ESC 4 ENTER Control buttons Operating the Sunny Central Control with SC 100 Indoor and SC 100 Outdoor Inverters With the Sunny Central SC 100 indoor and SC 100 outdoor inverters the Sunny Central Control is situated inside the inverter The Sunny Central Control may only be used in Stop mode with these devices Open the Sunny Central as described in the installation guide 18 SC BENO72950 User Manual SMA Technologie AG Sunny Central Control Operation 4 1 Functions of the Control Buttons The four control butto
31. n The Sunny Central Control is preconfigured for the respective communication type If you wish to receive e mail reports you must specify this in the menu Remote Info 7 1 Remote Info 1 Enter the password as described in section 5 4 Entering the Password Page 26 2 In the online info display press ESC ESC 3 Navigate to the Device Set up menu with the 3x 4 arrow button and select it by pressing ENTER 3Deuice Set ur ENTER User Manual SC BENO72950 35 Communication SMA Technologie AG 4 Navigate to the NET eMail menu with the 4 6 arrow button and select it by pressing ENTER Interfaces Date archives Ss HET eMail ENTER 5 Navigate to the Remote Info menu with the 4 1x arrow button and select it by pressing ENTER ENTER 6 The menu shown to the right appears Events Fecirient Sender ISP Account SMTP Account Test Rerort ENTER 36 SC BENO72950 User Manual SMA Technologie AG Communication 7 2 Activating E mail Reports 1 Select the Remote Info menu as described in section 7 1 Remote Info Page 35 2 Press ENTER The line deactivated begins to flash d 4 With the 4 arrow button change the menu item to activated 5 Confirm your adjustment by pressing ENTER twice 7 3 Entering or Changing E Mail Addresses 1 Select the Remote Info menu as described in section 7
32. nal loop for theft detection at the Sunny String Monitor has been interrupted Corrective measures e Check string currents e Check signal loop e For further details refer to the installation guide and user manual of the Sunny String Monitor or Sunny String Monitor Cabinet User Manual co Oo v rn o NI N so Qa 49 Failures and Warnings SMA Technologie AG No Description 585 Error text Error type 1 ser com with team disturbed Cause The communication between Team leader and member is interrupted Corrective measures e Check the RS485 cabling for Team communication e Check power supply of the Team member e Check Team parameters at both Sunny Centrals 586 Error text Error type 1 Team contactor remain opened Cause The Team contactor does not switch on Corrective measures e Check the triggering of the Team contactor e Check the isolation contactor s feedback contact Check whether the Team current monitoring system has tripped 587 Error text Error type 1 Team contactor remain closed Cause The Team contactor has not switched off The switching contacts may have become stuck Corrective measures e Check the triggering of the Team contactor e Check the contact position of the Team contactor e Contact the Sunny Central Serviceline 50 SC BENO72950 User Manual SMA Technologie AG Failures and Warnings No
33. ns are situated below the Sunny Central Control s display ESC ENTER 4 Upward arrow 4 Downward arrow The control buttons have several functions In the following table the buttons functions are explained Button Meaning and function ESC e cancels ends the present function e answers questions with No e returns to the previous menu changes from the online info display to the main menu 1 moves up to the previous line increases the present value 4 e moves down to the next line decreases the present value ENTER selects a function from the menu selects a value confirms changes answers questions with Yes T 4 returns to the online info display User Manual SC BENO72950 19 Sunny Central Control Operation SMA Technologie AG 4 2 Explanation of the Display Symbols The Sunny Central Control display has four lines It uses various display symbols which are explained in the following table Symbol Meaning t There are more display lines above There are more display lines below There are more display lines above and below Appears at the left of the presently selected line Press 1 or 4 to move to another line Appears to the left of a value which can be changed glows If for example a parameter has been changed the arrow flashes at flashes Ithe left of the active line z The Sunn
34. nt 20 mA to 20 mA 10 mV voltage measurement 10 mV to 10 mV 20 mV voltage measurement 20 mV to 20 mV 50 mV voltage measurement 50 mV to 50 mV 100 mV voltage measurement 100 mV to 100 mV 500 mV voltage measurement 500 mV to 500 mV 1V voltage measurement 1 V to 1 V 5V voltage measurement 5 V to 5 V 10V voltage measurement 10 V to 10 V Name name of the analog input Unit measurement unit of the analog input Gain conversion factor Offset value which is added User Manual SC BENO72950 43 External Sensors SMA Technologie AG 8 2 Calculating Gain and Offset 1 To activate the analog input you must select measurement range for the analog sensor e g 10V 2 Name the sensor e g Temperature 3 Enter the unit of measurement e g W m Radiation 4 The displayed value is calculated by means of Unit the value measured by the sensor Wm the value which you have specified as the Gain gain and 135 the value which you have specified as the Offset offset M 5 The gain factor is obtained by dividing the display range by the measuring range Display range Gain factor Measuring range 6 The offset is calculated by subtracting the product of the gain factor and the lower end of the measuring range from the lower end of the display range Offset lower end of display range gain factor lower end of measuring range Expressed in formulas M is a v
35. ntral e User manual how to operate the Sunny Central and Sunny Central Control e Wiring diagrams the Sunny Central s wiring diagrams e Technical data sheets technical data pertaining to the Sunny Central 6 SC BENO72950 User Manual SMA Technologie AG Safety Instructions 2 Safety Instructions DANGER Risk of lethal electric shock Death resulting from burning and electric shock upon touching the medium voltage grid s live components Donottouch the live components of the Sunny Central or medium voltage grid e Observe all safety regulations which apply to activity that involves the medium voltage grid WARNING Risk of lethal electric shock High voltages are present in the device e All work on the Sunny Central must be carried out by a trained and qualified electrician e Work on the Sunny Central is only to be performed as described in the following sections e Observe all safety instructions listed e Follow all safety instructions included in the Sunny Central s installation guide WARNING Lethal danger caused by damage to the Sunny Central Damage to the Sunny Central e g defective cables or a damaged housing can lead to death by electric shock or fire e Only use the Sunny Central when it is safe to do so Only use the Sunny Central if no damage is visibly evident e Visually check the Sunny Central for damage on a regular basis Ensure that all external safety feature
36. ny Central HE The Sunny Central HE is a high efficiency photovoltaic inverter It does not have its own low voltage transformer The Sunny Central HE requires an adapted external medium voltage transformer via which it can feed into the grid Sunny Central MV The MV stations are medium voltage stations In an MV station two Sunny Central HE devices feed into a shared medium voltage transformer The Sunny Central MV feeds into the medium voltage grid User Manual SC BENO72950 9 Description of the Sunny Central 3 1 Identifying the Sunny Central You can identify the Sunny Central using the name plate see figure below The name plate is located on the inside of the Sunny Central s door wo AMET SMA Technologie AG Hannoversche Str 1 5 34266 Niestetal Germany Tel 49 561 9522 0 Fax 49 561 9522 100 Auxiliary Voltage AC230V 50Hz DC24V Testing Voltage 1 7kV 2 6 2 8 kV DC Weight 1450kg made in germany n www sma de Serial number of the Sunny Central SC BENO72950 Typ SC 100 010 322 03 Version Es 7 Serial No 100 Year of manufacture 02 2007 AC Voltage current 400V 50Hz 261A Max DC Voltage current 900V 354A EVR Option 1000V 354A SMA Technologie AG The Sunny Central s type name with option code optional The version of the Sunny Central 5 means special version User Manual SMA Technologie AG Description of the Sunny Central 3 2 The Sunny Central
37. on of the door switches e Check the function and activation of the emergency shutoff relay e Check reverse current monitoring system Visually inspect the chopper module and the EVR resistors e Contact the Sunny Central Serviceline 220 Error text Error type 2 Release or Reset Signal faulty Cause The release signal or confirmation signal of the inverter bridge is defective Corrective measures If this error is always present contact the Sunny Central Serviceline 221 Error text Error type 3 CHOPPER overtemperature Cause e EVR resistor overtemperature e Defective chopper module e After 90 minutes a new startup attempt occurs Corrective measures e Check resistor for dirt Ventilate resistor sufficiently Contact the Sunny Central Serviceline User Manual co Oo v rn o NI N so Qa 55 Failures and Warnings SMA Technologie AG No 400 Description Error text Error type internal failure of inverter bridge 2 3 Cause Internal inverter bridge failure e g symmetry fault board voltage undertemperature sensor breakage Corrective measures If this error occurs frequently contact the Sunny Central Serviceline 402 Error text Error type 2 ser com with inverter bridge disturbed Cause e RS485 communication between the inverter bridge and the Sunny Central Control is interrupted e inverter bridge
38. or the sensors Input Possible settings Default value Measured value 3 deactivated 10V analog measured 4 20 mA jumper value required 10 mV 20 mV 50 mV 100 mV 500 mV 1V 5V 10V 8 PT100 PT100 PT100 temperature 1 Enter the password as described in section 5 4 Entering the Password page 26 2 In the online info display press ESC ESC User Manual SC BENO72950 41 External Sensors SMA Technologie AG 3 42 Navigate to the Device Setup menu with the 4 3x X4 arrow button and select it by pressing ENTER Set ur ENTER Navigate to the Interfaces menu with the 4 3x arrow button and select it by pressing ENTER Interfaces ENTER Navigate to the Analog In menu with the 4 1 x 4 arrow button and select it by pressing ENTER ENTER Navigate to the desired analog input Ain 3 Ain 4 or Ain 8 with the 4 arrow button and select it by pressing ENTER ENTER SC BENO72950 User Manual SMA Technologie AG External Sensors 7 You are presented with a detailed view of the selected analog input Unit mu Gain 1 Offset a ENTER Menu item Meaning Function Aln x Function of the analog input Possible settings Meaning deactivated the analog input is deactivated 20 mA current measureme
39. or operation with thin film modules 0 70 TrackCnt During operation the Sunny Central seeks the maximum power point It checks the voltage up to seven times default setting in one direction e g always toward the higher voltage After the seventh time at the latest it also seeks below the last voltage in order to check whether the maximum power point has decreased If for example the Sunny Central finds a lower power point upon the third increase it seeks below the most recently checked voltage Start requirement Operating MPP is set as a condition for starting up the inverter Mode VpvStart If Vpv gt UpvStart for the duration of Tstart the Sunny Central can switch from Wait mode to Startup mode UpvStart must be Tstart Ser adjusted for the solar generator which is connected to the Sunny Central User Manual 72950 29 Parameters SMA Technologie AG Parameter Twait Description of the function If in three consecutive startup attempts PpvStop has not been exceeded the next startup attempt will not occur before Twait has passed Shut down requ PpvStop If Pov lt PpvStop for the duration of Tstop the Sunny Central goes op into Shutdown mode Grid Monitor PacMax is the maximum power output to the grid If this limit is exceeded the Sunny Central reduces the power PpvMin PpvMinCheck appears only after entry of
40. ructions contained in all documents relevant to the product Operating the product under incorrect safety or protection conditions Altering the product or supplied software without authority The product malfunctions due to operating attached or neighboring devices beyond statutory limit values In case of unforeseen calamity or force majeure Software licensing The use of supplied software produced by SMA Technologie AG is subject to the following conditions This software may be copied for internal company purposes and may be installed on any number of computers Supplied source codes may be changed or adapted for internal company purposes on your own responsibility Drivers may also be transferred to other operating systems Source codes may only be published with the written permission of SMA Technologie AG Sub licensing of software is not permissible Limitation of liability SMA Technologie AG rejects any liability for direct or indirect damages arising from the use of software developed by SMA Technologie AG This also applies to the provision or non provision of support activities Supplied software not developed by SMA Technologie AG is subject to the respective licensing and liability agreements of the manufacturer Trademarks All trademarks are recognized even if these are not marked separately Missing designations do not mean that a product or brand is not a registered trademark SMA Technologie AG Hannoversche Stra e 1 5 34
41. s are freely accessible at all times and that they are regularly tested for correct functionality User Manual SC BEN072950 7 Safety Instructions SMA Technologie AG NOTICE Possible damage to the Sunny Central The Sunny Central can be damaged irreparably by electrostatic discharge at its components e When working on the Sunny Central and handling the module assemblies remember to observe all ESD safety regulations e Discharge any electrostatic charge by touching the grounded Sunny Central housing e before handling electronic components 1 Storage of handbooks This user manual the installation guide the data sheets the operating manuals of installed components and the wiring diagrams must be kept in the immediate vicinity of the Sunny Central They must be available to operators and maintenance staff at all times SC BENO72950 User Manual SMA Technologie AG Description of the Sunny Central 3 Description of the Sunny Central The Sunny Central is a solar inverter It allows photovoltaic solar energy from solar modules to be converted and fed into a low voltage or medium voltage grid Principle of a grid connected solar power system with a Sunny Central Solar modules Sunny Central Public grid ER N N OEE LZ ZR Sunny Central The standard Sunny Central is equipped with a low voltage transformer and feeds into the low voltage grid Sun
42. the installer password If Check PpvMinCheck is set to off the Sunny Central continues to operate after the shutdown conditions have been met As a result the Sunny Central operates even at night and needs to draw its operating power from the grid Other E Total Offset With this parameter the internal energy counter can have a constant offset applied to it It may be a good idea to adjust this parameter after replacement of the Sunny Central Control TMax cabinet If the TMax cabinet temperature is exceeded the warning cabinet Temp is generated TMin cabinet If the cabinet temperature drops below TMin cabinet the warning cabinet Temp is generated Team activated If the Sunny Central is a Team device the Team function can be activated here The following settings are available OFF Team function deactivated ON Team function activated Team Register If the Sunny Central is a Team device the Team register can be defined here The following values are available the Sunny Central is defined as Team leader 1 the Sunny Central is defined as Team member P Next Team In Team systems this parameter defines the percentage of the nominal power output required for the two Sunny Centrals to be disconnected from each other The default setting is 80 30 SC BENO72950 User Manual SMA Technologie AG Parameters Parameter Description of the function P Prv T
43. ts by pressing ENTER ENTER 6 failure or warning is present it is displayed with its date and time of occurrence 7 To confirm the error press ENTER The display begins to flash Alert 281 8514 13 45 36 Failure 468 ENTER User Manual SC BENO72950 59 Failures and Warnings SMA Technologie AG 8 Press the 4 arrow button once The word quit 1 appears the display 9 f you wish to confirm the error confirm twice with ENTER Alert 281 2 x ENTER 10 The message no faults appears in the display 60 SC BENO72950 User Manual SMA Technologie Maintenance 10 Maintenance WARNING Risk of lethal electric shock High voltages are present in the device work on the Sunny Central must be carried out by a qualified electrician Open the Sunny Central for maintenance as described in the installation guide The Sunny Central must be maintained at regular intervals Maintenance includes Inspection of wearing parts and replacement thereof if necessary e Functionality test of components Inspection of contact joints e Cleaning of cabinet interior if necessary The maintenance intervals depend on the location and the ambient conditions A Sunny Central installed in an environment with very dusty ambient air requires more frequent maintenance than indicated in the following table User Manual SC BENO72950 61 Maintenance Time Intervals
44. ures Deactivate the emergency shut off and confirm the failure as described in section 9 2 Confirming Errors at the Sunny Central Control page 58 209 Error text Error type 4 DC Short circuit Cause An internal short circuit was detected on the DC side within the inverter The DC switch was switched off Corrective measures e Check the Sunny Central from the outside e If possible the Sunny Central should be externally isolated e Contact the Sunny Central Serviceline 215 Error text Error type 2 heat sink fan fault Cause e Motor overload switch for fan s for cooling the power module has tripped e Overtemperature protection for fan s for cooling the power module has tripped e Ambient or cooling air temperatures too high Corrective measures e Switch the motor overload switch back on e Check function of cooling fans e Clean soiled air inlet or heatsink If this error occurs frequently contact the Sunny Central Serviceline 54 SC BENO72950 User Manual SMA Technologie AG Failures and Warnings No Description 217 Error text Error type 2 DC CB tripped or door switch open Cause e cabinet door was opened during operation e The DC circuit breaker was tripped due to an internal fault e reverse current monitoring system on the DC side has switched off e The EVR resistor s current monitoring system has tripped Corrective measures e Close the cabinet doors e Check the functi
45. ures which have occurred report hourly report recommended daily report Send at Here the time at which the daily report is time to be sent can be defined We recommend setting the time to 22 15 10 15 p User Manual SC BENO72950 39 Communication SMA Technologie AG 7 5 Sending a Test Report To check the settings you can send a test report 1 Select the Remote Info menu as described in section 7 1 Remote Info page 35 2 Navigate to the Test Report menu with the 4 6 arrow button and select it by pressing ENTER Events RecirFient Sender ISP Account SMTP Account Test Rerort ENTER 3 The Sunny Central Control shows Start in the display Press ENTER to send a test report IF the test report cannot be sent the display shown to the right appears The meaning of the error code on the bottom line is described in the NET Piggy Back documentation 40 SC BENO72950 User Manual SMA Technologie AG External Sensors 8 External Sensors This section describes how the sensors are configured The connection of sensors is described in the Sunny Central s installation guide The connection points are shown in your Sunny Central s wiring diagrams 8 1 Configuring the External Sensors In total two external analog sensors and one analog PT100 temperature sensor can be installed at the Sunny Central Control You can use the analog inputs 3 4 and 8 f
46. utton if applicable Visually check all fuses and disconnectors and lubricate the 12 months contacts if necessary Check overvoltage protectors 12 months 62 SC BENO72950 User Manual SMA Technologie AG Maintenance Maintenance work Maintenance interval recommended Check the 230 V und 24 V control and auxiliary voltages 12 months Overtemperature functionality test 12 months Check the overtemperature safety circuit Emergency shut off functionality test 12 months Check the function of the internal and external emergency shut off switches Check the function of the door contacts 12 months Insulation monitoring GFDI functionality test 12 months Check the function and the signaling The maintenance interval may need to be shortened depending on the location or ambient conditions Regular Data Backups Backup and archive the Sunny Central Control data regularly with Sunny Data Control This can occur by means of remote querying or during routine maintenance User Manual SC BEN072950 63 Contact SMA Technologie AG 11 Contact If you have any questions or technical problems concerning the Sunny Central contact our Serviceline Please have the following information available when you contact SMA Inverter type and number of modules connected e Communication method Sunny Central serial number Sunny Central failure or
47. y Central Control is loading the next menu or saving data 4 3 Adjusting the Display Contrast You can adjust the display contrast in any menu You must press a combination of two buttons in order to increase or decrease the contrast Buttons Function ESC 1 increases the display contrast ESC 4 decreases the display contrast 4 4 Adjusting Parameters and Settings You can adjust the Sunny Central s parameters and settings in edit mode Only parameters which have a solid arrow to their left can be adjusted Press ENTER to access the parameter s edit mode The parameter s value begins to flash You can adjust the value with the two arrow buttons Confirm the change with ENTER or cancel with ESC If no button is pressed for 60 seconds the change is automatically cancelled i Password for Adjusting Parameters Parameters can only be adjusted after an installer password has been entered see section 5 4 Entering the Password 26 20 SC BENO72950 User Manual SMA Technologie Sunny Central Control Menu 5 Sunny Central Control Menu The Sunny Central Control initializes upon activation of the Sunny Central The initialization includes a sequence of three displays Once the Sunny Central Control has initialized it changes to the online info display In the online info display your Sunny Central s measured values and spot values are displayed 7 ENT
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