Sunny Central 250U, Sunny Central 500U
Contents
1. Error text Device Fault Cause of fault Internal fault of the Sunny Central Corrective measures Contact the SMA Service Line User Manual C250U_500U BUSO91711 31 Error Diagnosis SMA Solar Technology AG 64 Description Error text Device Fault Cause of fault Internal fault of the Sunny Central Corrective measures Contact the SMA Service Line 65 Error text Overtemperature Cause of fault The ambient temperature is too high Corrective measures e Check functionality of fan Clean the fan e Clean dirty fan inlets and the ventilation plate 70 Error text Temperature sensor failure Cause of fault e Cable break e Short circuit Internal fault of the Sunny Central Corrective measures e Check the cabling of the temperature sensor Contact the SMA Service Line 75 Error text Fan failure Cause of fault The ambient temperature is too high Corrective measures Check functionality of fan Clean the fan e Clean dirty fan inlets and the ventilation plate 32 C250U_500U BUSO91711 User Manual SMA Solar Technology AG Error Diagnosis 76 Description Error text Communication failure Cause of fault Internal fault of the Sunny Central Corrective measures Contact the SMA Service Line 77 Error text Device fault Cause of fault Contactor defective Corrective m2. Increase decrease values Turn knob 4 4 Switching the display You can view the hourly graph or the daily graph in the display The display shows the hourly graph by default The current hour or the current day is the right column of the chart With every new hour or new day the chart moves further to the left out of the screen In total the display can show 16 hours or 16 days E DAY E DAY charts the hours and indicates the maximum power output of the day When no energy is fed into the grid at night for example a gap is inserted in the chart The gap is the same width as a column A No energy is fed into the grid B Current hour 20 S C250U_500U BUSO91711 User Manual SMA Solar Technology AG E HISTORY E HISTORY is the chart of the last 16 days The daily chart displays the energy which the Sunny Central fed into the grid on the respective days A Current day Switching between E DAY and E HISTORY You change the display by turning the knob Turn the knob to the left EHISTORY Turn the knob to the right EDAY User Manual Operating the Sunny Display C250U_500U BUSO91711 21 Operating the Sunny Display 4 5 Menu Overview The menu of the Sunny Display is subdivided into two menu items To access the menu proceed as follows 1 Turn the knob to the right until the text line E DAY appears 2 Keep the knob and the pushbutton pressed for 5 seconds The Sunny Display changes
3. Central Inverter SUNNY CENTRAL 250U and 500U User Manual C250U_500U BUSO91711 98 4000611 Version 1 1 Cus SMA Solar Technology AG Copyright 2009 SMA America Inc All rights reserved No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photographic magnetic or otherwise without the prior written permission of SMA America Inc SMA America makes no representations express or implied with respect to this documentation or any of the equipment and or software it may describe including with no limitation any implied warranties of utility merchantability or fitness for any particular purpose All such warranties are expressly disclaimed Neither SMA America nor its distributors or dealers shall be liable for any indirect incidental or consequential damages under any circumstances The exclusion of implied warranties may not apply in all cases under some statutes and thus the above exclusion may not apply Specifications are subject to change without notice Every attempt has been made to make this document complete accurate and up to date Readers are cautioned however that SMA America reserves the right to make changes without notice and shall not be responsible for any damages including indirect incidental or consequential damages caused by reliance on the material presented including but not limited to omissions ty
4. Sunny WebBox Power Metering The Shark power meter and iLon device are a revenue grade metering system They allow the output generation of the inverter to be monitored and recorded This information is sent via the internet to a network that can process the data into a utility bill 16 S C250U_500U BUSO91711 User Manual SMA Solar Technology AG Operating the Sunny Display A Operating the Sunny Display 4 1 Functions of the Buttons A Pushbutton B Knob The display can be operated with a pushbutton and a knob Pushbutton If an error occurs during operation the pushbutton is backlit red The display indicates the error with a number and a description in the text line Knob The knob can be pressed or turned to the left or the right Turn Moves up and down in the menu Entering values decrease increase 5 Press Open close menu Select cancel function Select value Confirm entry Activation of the background illumination User Manual SC250U_500U BUS091711 17 Operating the Sunny Display SMA Solar Technology AG 4 2 Description of Display Symbols E DAY A Tapping The background illumination is switched on by tapping on the housing cover B Open switch The Sunny Central is not feeding the grid e g at night Closed switch The Sunny Central is feeding the grid C Power This displays the power which the Sunny Central is feeding into the grid The display is up
5. 2 Keep the knob and the pushbutton pressed for 2 seconds Turn the knob until the text line displays SETTINGS Press the knob once The Sunny Display changes to the SETTINGS menu Turn the knob until the text line displays TIME SETTINGS Press the knob once The Sunny Display changes to the TIME SETTINGS menu Turn the knob until the text line displays SET CURRENT TIME Press the knob once The Sunny Display changes to the SET CURRENT TIME menu You can set the hours and minutes in this menu HOUR Current hour The time is shown in 12 hour format MIN Current minute Turn the knob until the text line displays HOUR for example User Manual SC250U_500U BUSO91711 23 Operating the Sunny Display SMA Solar Technology AG 10 12 Press the knob once The Sunny Display changes to the HOUR menu item Turn the knob until the text line displays the desired hour Press the knob once to confirm and save the current value The Sunny Display springs back to the SET CURRENT TIME menu The value in this case the hour is set To set the minute proceed as described in point 9 Select MINUTE instead of HOUR 4 6 2 Changing the Date 1 2 24 Follow points 1 through 6 in chapter 4 6 1 Changing the Time Page 23 Turn the knob until the text line displays SET CURRENT DATE Press the knob once The Sunny Display changes to the SET CURRENT DATE menu You can set the year month and day in this m
6. unit 6 Press the knob once to spring back one level User Manual SC250U_500U BUSO91711 25 Parameters 5 Parameters 5 1 Description of Parameters SMA Solar Technology AG The following table shows the parameters that are visible to the user The installation guide of the Sunny Central also shows the parameters that are visible to the installer Parameter Name Ackn Range Ackn NoAckn Default Parameter Description Acknowledge an error manually You can acknowledge an error with the optional Sunny WebBox Refer to Section 6 1 6 Acknowledge the Error with the Sunny WebBox Page 36 Dt yyyymmdd Current Date Here you can set the current date Ofs_E Total 0 214748364 kWh O kWh The Sunny Central s total energy yield Changing the Ofs_E_Total parameter may be necessary if you exchange the computer assembly BFR of the Sunny Central and want to transfer the data from the old device Ofs_h_On 0 2147483 h Oh The Sunny Central s total number of hours of operation Changing the Ofs_h_On parameter may be necessary if you exchange the computer assembly BFR of the Sunny Central and want to transfer the data from the old device Ofs_h_Total 0 2147483 h Oh Total number of operational hours with grid feeding Changing the Ofs_h_Total parameter may be necessary if you exchange the computer assembly BFR of the Sunny Central and want to tra
7. MA Solar Technology AG Information on this Manual 1 Information on this Manual This document describes the operation maintenance and failure correction of the Sunny Central 250U and Sunny Central 500U This manual does not cover any details concerning solar modules Information concerning the solar modules is available from the manufacturer of the solar modules 1 1 Target Group This manual is for the installer the maintenance personnel and the operator of a Sunny Central 250U and Sunny Central 500U An installer is an electrician or technician who is trained in dealing with the dangers and hazards that can occur when installing electric devices 1 2 Validity This manual applies for the Sunny Central 250U and Sunny Central 500U from the BFR firmware version 1 010 and the DSP firmware version 1 010 In this manual the Sunny Central 250U and Sunny Central 500U are referred to as Sunny Central User Manual S C250U_500U BUSO91711 9 Safety Instructions SMA Solar Technology AG 2 Safety Instructions A DANGER High voltages are present in the live components of the medium voltage grid Death resulting from burning and electric shock Do not touch the live components of the medium voltage grid or the inverter Pay close attention to all safety precaution measures regarding the medium voltage grid WARNING Failure to follow the manual the operating instructions and the safety precautions may lead to severe injury from
8. RJ45 plug on each end Power The power is measured in W watts kW kilowatts or MW megawatts Power is a present value It displays the power the Sunny Central is currently feeding into the grid PV Abbreviation for photovoltaic designates the conversion of solar energy into electrical energy PWM Abbreviation for Pulse Width Modulation Router A router connects several computer networks together RS485 RS485 is an interface standard for cable bound data transmission RS485 allows communication with 50 inverters and communication devices over a distance of 4 000 ft Solar Cell An electronic component which generates electrical energy when irradiated with sunlight Since the voltage produced by a solar cell is very small approx 0 5 V several solar cells are combined to form a solar module The most common material presently used for solar cells is silicon which is manufactured in different forms monocrystalline polycrystalline amorphous Solar Energy System A solar power plant is a power plant in which a portion of the solar irradiation is converted to electrical energy by means of solar cells The DC voltage won this way is converted to AC voltage by an inverter for example Sunny Central and is fed into the electricity network Solar Inverter A device for converting the direct current DC from the PV generator into alternating current AC which is required by most normal household devices and especially
9. Solar voltage solar current This displays the solar voltage and solar current in alternation The display changes between the values every 2 seconds K Event number PV generator If there is a failure in the PV generator an error number will be shown in this position In addition a message in plain text will be shown in the text line position F See Section 6 Error Diagnosis Page 29 L Errors This symbol is illuminated if an error occurs Contact the SMA Service Line see Section 7 Contact Page 38 M Errors This symbol is illuminated if an error occurs In Section 6 Error Diagnosis Page 29 it is described how this error can be rectified N Graphic display of the output power of the Sunny Central The output power of the Sunny Central is shown in a chart in the display The daily graph is displayed by default Also see Section 4 4 Switching the display Page 20 The column for the current hour is adjusted every five seconds User Manual S C250U_500U BUSO91711 19 Operating the Sunny Display SMA Solar Technology AG 4 3 Navigating through the Menu You can navigate through the menu using the knob and the pushbutton on the Sunny Display Action Procedure Change menu item Turn knob Select menu Press knob once Leave menu Turn the knob until the text line reads BACK Press the knob The Sunny Display changes to the outer menu Confirm entry Press knob once
10. al String Monitor The Sunny Central String Monitor monitors the current of the PV modules and can detect failures e g the failure of a module Sunny WebBox The Sunny WebBox collects the data from the Sunny Central continuously To read the data the Sunny WebBox can be connected to a laptop or PC The data can be processed with Sunny Portal for example Switch A switch is a network component which allows the connection of several computers or network segments in a local network THD Abreviation for Total Harmonic Distortion User Manual SC250U_500U BUS091711 41 Appendix Glossary SMA Solar Technology AG 42 SC250U_500U BUSO91711 User Manual SMA America Incorporated 4031 Alvis Court Rocklin CA 95677 4011 Tel 916 625 0870 Fax 916 625 0871 info sma america com
11. be performed by qualified personnel Warranty The currect guarantee conditions are available at www sma america com and can be downloaded or are available on paper from the usual sales channels if required For warranty coverage or if you have telephone questions about the Sunny Central warranty contact SMA America at the address number or Web site listed on page 3 to send E mail see the Contact section of the SMA America Web site User Manual C250U_500U BUSO91711 5 SMA Solar Technology AG SC250U_500U BUS091711 User Manual SMA Solar Technology AG Table of Contents Table of Contents 1 1 1 1 2 2 3 3 1 3 2 3 3 3 4 3 5 3 5 1 3 6 4 4 1 4 2 4 3 4 4 4 5 4 5 1 4 6 4 6 1 4 6 2 4 7 5 5 1 5 2 User Manual Information on this Manual 2 e ee eee 9 Targ t Gropes A ee etre e Sad oh ocala eae 9 Validian a n atd ats EA N a E o Gig BL aah Meas 9 Safety Instructions cece eee eee eee eens 10 Description of the Sunny Central 12 Design of the Sunny Central 0000 00 aes 13 Location of the Safety Instructions 000 14 Identifying the Sunny Central 000000 15 PIM WONCi cs tsaso hea tei aed Gas him eee 15 Elements for Sunny Central Operation 16 Suriny Displayei he Tt ds EU ole lacs lI Sk ee oi 16 Optional Accessories nnana heen ck tea ee 16 Operating the Sunny Dis
12. dated every 5 seconds D Day The energy fed into the grid on this day is displayed here This is the energy generated from the moment the Sunny Central begins to operate to the moment of the reading The display is updated every 5 seconds E Total This displays the total energy which the Sunny Central has fed into the grid during its operating time The display is updated every 5 seconds F Text line The text line shows the menu and a plain text error description For example if there is an error the cause of the error is shown in the text line In addition the display shows the respective error number in position G or K 18 SC250U_500U BUS091711 User Manual SMA Solar Technology AG Operating the Sunny Display G Event number grid If there is a failure in the AC grid an error number will be shown in this position In addition a plain text message will be shown in the text line position F See Section 6 Error Diagnosis Page 29 H Grid voltage grid frequency grid current Changing display between e Grid voltage e Grid frequency Grid current average over all three phases The display changes between the values every 2 seconds Event number Sunny Central If there is an error in the Sunny Central an error number will be shown in this position In addition a plain text message will be shown in the text line position F See Section 6 Error Diagnosis Page 29 J
13. e 290 480 Vde Max operating current 800 Ade The unit contains DC Ground and Fault Detector cond Interruptor ENCLOSURE Type 3R 5A For more details and for ightening torque allowable wire size and type see the Operator s US LISTED Primed Sf merer Tested To Comply C Wih FOC Standards FOR HOME AND OFFICE USE AA C250U_500U BUSO91711 Description of the Sunny Central SMA Solar Technology AG 3 5 Elements for Sunny Central Operation 3 5 1 Sunny Display There is a display on the front side of the Sunny Central The display shows the current values of the solar power system See Section 4 Operating the Sunny Display Page 17 3 6 Optional Accessories The Sunny Central can be equipped with various communication and data acquisition devices Sunny WebBox The Sunny WebBox collects the data from the Sunny Central continuously To read the data the Sunny WebBox can be connected to a laptop or PC The data can be processed with Sunny Portal for example Sunny SensorBox The Sunny SensorBox and the sensors enable you to acquire environmental data of your solar power system which are relevant for performance evaluation For this purpose the Sunny SensorBox is equipped as standard with an integrated irradiation sensor and an external module temperature sensor The Sunny SensorBox delivers the sensor data via an RS4835 interface to the SMA communication devices e g
14. e Corrective measures e Check grid frequency e Ifthe grid frequency lies outside the acceptable range because of local grid conditions ask the grid operator if the frequency can be adjusted at the feed in point Check that the external fuses are functional e Check that the AC cable is securely connected 34 C250U_500U BUS091711 User Manual SMA Solar Technology AG Error Diagnosis 08 Description Error text Grid failure Cause of fault One phase of the grid has failed Corrective measures e Check the grid voltage Check that the external fuses are functional e Check that the AC cable is securely connected Error text Grid installation failure Cause of fault Counterclockwise phase sequence Corrective measures e Check connection to the grid e Check phase sequence User Manual S C250U_500U BUSO91711 35 Error Diagnosis SMA Solar Technology AG 6 1 4 Display Fault If the fault is with the display the cause of the fault appears in text line see example to the right A display fault is shown without a two digit error code The table below describes the type of fault its cause and what you can do to rectify the fault No Description none Error text NO COMMUNICATION Cause of fault The display has received no data for 5 minutes Corrective measures e Check communication cable e Check supply voltage of the operation contr
15. easures Contact the SMA Service Line 79 Error text Reverse current failure Cause of fault Short circuit in the solar generator Corrective measures e Check the solar generator for short circuits User Manual C250U_500U BUSO91711 33 Error Diagnosis SMA Solar Technology AG 6 1 3 Grid Fault If the fault is on the grid side a two digit error code appears on the right side of the system display see figure to the right A With this error number you can narrow down the type of malfunction The table below describes the type of fault its cause and what you can do to rectify the fault A No Description 01 Error text Grid failure Cause of fault The grid voltage is too high Corrective measures Check the grid voltage If the grid voltage lies outside the acceptable range because of local grid conditions ask the grid operator if the voltages can be adjusted at the feed in point 02 Error text Grid failure Cause of fault The grid voltage is too low Corrective measures e Check the grid voltage e Ifthe grid voltage lies outside the acceptable range because of local grid conditions ask the grid operator if the voltages can be adjusted at the feed in point Check that the external fuses are functional e Check that the AC cable is securely connected 05 Error text Grid failure Cause of fault The grid frequency is outside the permitted rang
16. electric shock e All work on the Sunny Central may only be done as described in this manual e Pay attention to all safety instructions e Follow all operating instructions e f problems occur when performing the work described here contact SMA America WARNING Operating a damaged Sunny Central may cause severe injury from electric shock e The Sunny Central may only be used when it is technically faultless and safe to operate Operate the Sunny Central only if there are no visible damages Regularly check the Sunny Central for visible damage e Ensure that all external safety features are freely accessible at all times and that they are regularly tested for correct functionality 10 C250U_500U BUSO91711 User Manual SMA Solar Technology AG Safety Instructions i Storage of handbooks This documentation must be kept in the immediate vicinity of the Sunny Central It must be accessible to service and maintenance personnel at any time Do not store this documentation or other papers in the Sunny Central User Manual SC250U_500U BUS091711 11 Description of the Sunny Central SMA Solar Technology AG 3 Description of the Sunny Central The Sunny Central is a solar inverter that converts the DC energy from solar modules to AC energy This energy is then fed to the public grid The Sunny Central is designed for indoor and outdoor installation Principle of a Solar Power System with a Sun
17. enu YEAR Current year MONTH Current month DAY Current day Turn the knob until the text line displays YEAR for example Press the knob once The Sunny Display changes to the YEAR menu item Turn the knob until the text line displays the desired year Press the knob once to confirm and save the desired value The Sunny Display springs back to the SET CURRENT DATE menu The value in this case the year is set To set the month and day proceed as described in point 4 Select MONTH or DAY instead of YEAR SC250U_500U BUSO91711 User Manual SMA Solar Technology AG Operating the Sunny Display 4 7 Display Firmware Version You can display the firmware versions of the Sunny Central and the Sunny Display as follows 1 Keep the knob and the pushbutton pressed for 2 seconds 2 Turn the knob until the text line displays INFO 3 Press the knob once The Sunny Display changes to the INFO menu In this menu you can select the firmware versions and version numbers VERSION BFR firmware version of the Sunny Central operation control unit BFR VERSION DSP firmware version of the Sunny Cetral Digital Signal Processor DSP VERSION Display firmware version of the Sunny Display VERSION LCD firmware version of the Sunny Display LCD Turn the knob until the text line of the event display reads VERSION BFR for example 5 Press the knob once The Sunny Display shows the version number of the operation control
18. ervoltage Cause of fault The voltage of the solar generator is too high Corrective measures Immediately disconnect the solar generator from the Sunny Central The Sunny Central can be damaged by the high input voltage e Check the input voltage e Check module wiring and system design 35 Error text Ground Fault Cause of fault The solar generator has a connection to ground Corrective measure e Check the solar generator for a ground fault 30 S C250U_500U BUSO91711 User Manual SMA Solar Technology AG Error Diagnosis 38 Description Error text DC Overcurrent Cause of fault The current of the solar generator is too high Corrective measures Immediately disconnect the solar generator from the Sunny Central The Sunny Central can be damaged by the high input current Check the input current Check module wiring and system design 6 1 2 Sunny Central Fault If the fault is with the Sunny Central a two digit error code appears in the middle of the system display see figure to the right A With this error number you can narrow down the type of malfunction The table below describes the type of fault its cause and what you can do to rectify the fault 60 No Description Error text Device Fault Cause of fault Internal fault of the Sunny Central Corrective measures Contact the SMA Service Line 61
19. for diagnosing a fault A DANGER Even in the case of a fault the Sunny Central can still contain high voltages Risk of death from electric shock All procedures described in this section may only be carried out by qualified personnel Allthe safety instructions in the installation guide and user manual must be observed when working on the Sunny Central e Contact SMA America if you cannot rectify the fault with the help of this manual Example of an Isolation Failure oO The pushbutton glows to indicate a failure Symbol for a failure in this case a wrench Error number here isolation failure I A gt Plain text message in the text line User Manual SC250U_500U BUS091711 29 Error Diagnosis SMA Solar Technology AG 6 1 Diagnosis The displayed faults are divided into the three areas of the PV system Solar generator see Section 6 1 1 Solar Generator Fault Page 30 e Sunny Central see Section 6 1 2 Sunny Central Fault Page 31 e Grid see Section 6 1 3 Grid Fault Page 34 6 1 1 Solar Generator Fault If the fault is on the solar generator side a two digit error code appears on the left side of the system display see figure to the right A With this error number you can narrow down the type of malfunction The table below describes the type of fault its cause and what you can do to rectify the A fault No Description 34 Error text DC Ov
20. for feeding energy into an existing supply grid Solar Module A collection of solar cells in a housing that protects the sensitive cells from mechanical stresses and allows easy installation 40 SC250U_500U BUS091711 User Manual SMA Solar Technology AG Appendix Glossary String Describes a group of solar modules connected in series Sunny Central The Sunny Central is an inverter for large solar power systems This inverter concept is one in which all solar modules are connected to each other in series and or parallel and a single inverter is used for feeding energy into the grid Sunny Portal Sunny Portal is a web based service provided by SMA which offers the possibility of creating a personal Sunny Portal website on which the data pertaining to a photovoltaic plant can be displayed Additionally the Sunny Portal archives this data The solar power system data is available worldwide over the Internet Sunny SensorBox The Sunny SensorBox and the sensors enable you to acquire environmental data of your solar power system which are relevant for performance evaluation For this purpose the Sunny SensorBox is equipped as standard with an integrated irradiation sensor and an external module temperature sensor The Sunny SensorBox delivers the sensor data via an RS4835 interface to the SMA communication devices e g Sunny WebBox Sunny Central String Monitor The DC cables from the solar generators are collected in the Sunny Centr
21. lt in death or serious injury CAUTION CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE NOTICE indicates a situation that can result in property damage if not avoided 4 C250U_500U BUSO91711 User Manual SMA Solar Technology AG Other Symbols In additio nto the safety and hazard symbols described on the previous pages the following symbol is also used in this Installation Guide l Information This symbol accompanies notes that call attention to supplementary information that you should know and use to ensure optimal operation of the system General Warnings A General Warnings All electrical installations must be done in accordance with the local and National Electrical Code ANSI NFPA 70 The Sunny Central contains no user serviceable parts For all repair and maintenance always contact an authorized SMA Service Center Before installing or using the Sunny Central read all of the instructions cautions and warnings on the Sunny Central the PV array in this Installation Guide and in the User Manual Before connecting the Sunny Central to the electrical utility grid contact the local utility company This connection must be made only by qualified personnel PV arrays produce electrical energy when exposed to light and thus can create an electrical shock hazard Wiring of the PV arrays should only
22. nce usually dependent on component temperatures Compared with the normal process of completely shutting down the device the negative effect on the external power network is reduced with derating DSP Abbreviation for Digital Signal Processor Energy The energy is measured in Wh watt hours kWh kilowatt hours or MWh megawatt hours The energy is the power calculated over time If for example your Sunny Central operates at a constant output of 150 kW for half an hour and then at a constant output of 250 kW for another half hour it has fed 200 kWh of energy into the gird within that hour Ethernet Ethernet is a cable based data network technology for local data networks It allows data exchange in the form of data frames between all devices connected to a local network e g computer printer Fast Ethernet Fast Ethernet is a further development of Ethernet which works at 100 Mbit s Also see Ethernet Maximum Power Point MPP Operating point with the maximum output power This operating point varies with the solar radiation and temperature conditions of the modules User Manual S C250U_500U BUSO91711 39 Appendix Glossary SMA Solar Technology AG NEMA Abbreviation for National Electrical Manufactures Association NFPA Abbreviation for National Fire Protection Association Patch Cable A patch cable is used for example to connect a computer to a switch or router A patch cable is an 8 wire twisted pair cable with an
23. nsfer the data from the old device Plimit 0 1000 kw 250 kW SC250U 500 kw SC500U Upper limit for AC output power This parameter cannot be changed 26 C250U_500U BUSO91711 User Manual SMA Solar Technology AG Parameters Parameter Name Range Default Parameter Description Pmax 0 250 kw 250 kw Output limit of the Sunny Central SC250U SC250U The output power of the Sunny Central 0 500 kw 500 kw can be reduced with this parameter SC500U SC500U PVPwrMinTr 0 1200 kw 10 kw MPP tracking PVPwrMinTrT 1 1800s 600 s If the output exceeds the value PVPwrMinTr the Sunny Central will wait for the period of time set in PVPwrMinTrT before it begins to seek the Maximum Power Point PVStrT 1 1800 s 90s Initial voltage of the Sunny Central PVVigStr O 1200 V 400 V If the voltage increases over the value set at PVVtgStr the Sunny Central will start after waiting for the period of time set at PVStrT Serial Number Serial number of the Sunny Central This parameter cannot be changed SpntRemEna Off On On Switching off the Sunny Central With this parameter you can switch off the Sunny Central via the remote access Tm hhmmss Current Time Here you can set the current time User Manual S C250U_500U BUSO91711 27 Parameters SMA Solar Technology AG 5 2 Changing Parameters A DANGER Danger to life through changing the inte
24. ny Central Solar modules DC distribution with DC fuses e g Sunny Central String Monitor DC disconnect Sunny Central AC fuse AC disconnect Public grid ga T mT oO ADW DD 12 SC250U_500U BUSO91711 User Manual SMA Solar Technology AG Description of the Sunny Central 3 1 Design of the Sunny Central The Sunny Central is divided into three sections Sunny Central 250U a E E a A B Ec Sunny Central 500U See e mee C A Magnetics Cabinet The Sunny Central s transformer is contained in the Magnetics Cabinet B Control Cabinet The Control Cabinet contains the system control the Sunny Display the stop start switch and the stacks for converting direct current to alternating current C Interface Cabinet All AC DC and data cables are connected in the Interface Cabinet User Manual SC250U_500U BUS091711 13 Description of the Sunny Central 3 2 Location of the Safety Instructions Sunny Central 250U The figure to the right shows the location of the safety instructions on the Sunny Central 250U A Door of the Magnetics Cabinet General warnings B Door of the Control Cabinet and Interface Cabinet Warning regarding high voltages in the Sunny Central Sunny Central 500U The figure to the right shows the location of the safety instructi
25. ol unit BFR e Check operating mode of the Display see the Sunny Central installation guide WEBBOX For this operating mode a Sunny WebBox has to be installed NO WEBBOX No Sunny WebBox installed e For operation with Sunny WebBox Check function of the Sunny WebBox Contact the SMA Service Line 6 1 5 Acknowledge Error at the Sunny Display Acknowledge the error as described in the following 1 Rectify the error at the Sunny Central as described in section 6 Error Diagnosis Page 29 2 Press the glowing pushbutton once After 2 seconds the error is acknowledged 6 1 6 Acknowledge the Error with the Sunny WebBox If a Sunny WebBox is installed in the Sunny Central you acknowledge an error via a Sunny WebBox from a PC or Laptop You will find an extensive description of the operation of the Sunny WebBox in the technical description of the Sunny WebBox The error can only be acknowledged in the installer mode Proceed as follows 1 Rectify the error at the Sunny Central as described in section 6 Error Diagnosis Page 29 1 Open Internet browser 2 Enter the Sunny WebBox IP address The Sunny WebBox interface appears in the browser 3 Enter the installer or user password The parameters are displayed depending on the password level 36 S C250U_500U BUSO91711 User Manual SMA Solar Technology AG Select Sunny Central from the selection list to the left 5 Select the Parameter tab The brow
26. ons on the Sunny Central 500U A Door of the Magnetics Cabinet General warnings B Door of the Control Cabinet and Interface Cabinet Warning regarding high voltages in the Sunny Central 14 C250U_500U BUSO91711 SMA Solar Technology AG a on User Manual SMA Solar Technology AG 3 3 Identifying the Sunny Central You can identify the Sunny Central using the type plate see figure at right example for a typeplate of the Sunny Central 500U The type plate is located in the Interface Cabinet A Type description of the Sunny Central B Serial number of the Sunny Central C Date of manufacture 3 4 Firmware You can use the display to call up the firmware version of the Sunny Central and of the display see Section 4 7 Display Firmware Version Page 25 User Manual SMA Solar Technology AG gpa www sma america com ra Description of the Sunny Central SUNNY CENTRAL Model Serial No SC500U 0180100000 lt B Date of manufacture 11 2007 lt C Max Continuous output Power 250kWee Operating voltage range Vac 3 Phase ir Nominal Max 422 480 522 Operating Frequency range Hz Min Nominal Max 59 3 600 605 Max continuous output current 300 7Aae Output power fodor 0 99 Range of input operating voltage 290 600 Vde MPPT Range of operating DC voltag
27. play 205 17 Functions of the Buttons previa neratacearey anaa 17 Description of Display Syibolsiv c1c0g od owe hace ne 18 Navigating through the Menu 000 000 20 Switching the display a s nexacccdee abe sSos Sache eee 20 Menu Overview 0 0 0 0 0 e cece eect nee 22 Description of Menu Items 000 cece cece eens 23 Changing the Date and Time 00000 00 eee 23 Changing the Times ess 6ctananchees E E ERRA T E E AA 23 Chariging the Date se a e a A a A 24 Display Firmware Version o n naaa nuanua anaa 25 Parameters csie ana i O RA a a eeeyes 26 Description of Parameters n on annaa anaana 26 Changing Parameters o aonana aaaea 28 SC250U_500U BUS091711 ra Table of Contents SMA Solar Technology AG 6 1 6 1 1 6 1 2 6 1 3 6 1 4 6 1 5 6 1 6 Error Diagnosi Sss osoni catered ata eee OS 29 DIGGING Sas sieves qe ta dan hm te re bedth e E pavers 30 Solar Generator Fault 00 0 eee eee eee 30 Sunny Centrali Fauli iss nicue teeta otra as bo etna mesg le hasegies 31 Grid EQUI ds eta te ti eat eal Se ME So Sts eb die an CS on Uo 34 Display Fault oati ee gute aids te ae becca A hole et 36 Acknowledge Error at the Sunny Display 000000 36 Acknowledge the Error with the Sunny WebBox 0 36 CONIDG sies s aatre ia asa rao Ae TEE ee Rey 38 Appendix Glossary cece ee cece e teens 39 C250U_500U BUSO91711 User Manual S
28. pographical errors arithmetical errors or listing errors in the content material SMA America Incorporated 4031 Alvis Court Rocklin CA 95677 4011 Tel 1 916 625 0870 Fax 1 916 625 0871 www SMA America com User Manual C250U_500U BUSO91711 3 SMA Solar Technology AG IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions for Models SC 250U SC 500U SOLAR INVERTERS that shall be followed during installation and maintenance of the inverter The Sunny Central is designed and tested according to international safety requirements but as with all electrical and electronic equipment certain precautions must be observed when installing and or operating the Sunny Central To reduce the risk of personal injury and to ensure the safe installation and operation of the Sunny Cetral you must carefully read and follow all instructions cautions and warnings in this Installation Guide Warnings A Warning describes a hazard to equipment or personnel It calls attention to a procedure or practice which if not correctly performed or adhered to could result in damage to or destruction of part or all of the SMA equipment and or other equipment connected to the SMA equipment or personal injury A DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury WARNING WARNING indicates a hazardous situation which if not avoided could resu
29. rnal safety specifications of the Sunny Central e Parameters may only be changed with the express authorization of the grid operator and SMA America If a Sunny WebBox is installed in the Sunny Central you can change the parameters of the Sunny Central via remote access from a PC or laptop If you want to change the parameters of a Sunny Central without an inbuilt Sunny WebBox contact SMA America Change the parameters as described in the following 1 Open Internet browser 2 Enter the Sunny WebBox IP address The Sunny WebBox interface appears in the browser 3 Enter the installer or user password The parameters are displayed depending on the password level Select Sunny Central from the selection list to the left 5 Select the Parameter tab The browser displays the parameter list of the Sunny Central 6 Select and change the desired parameter Go to the bottom of the parameter list and click on Save The parameter changes after 2 seconds 28 C250U_500U BUSO91711 User Manual SMA Solar Technology AG Error Diagnosis 6 Error Diagnosis If the Sunny Central detects a fault during operation it shows the fault in the display Faults are indicated with a two digit error code a plain text message in the text line a symbol in the display and a glowing pushbutton This section describes how to recognize the type of fault and how you can rectify it For the user of the Sunny Central this section should only be used
30. ser displays the parameter list of the Sunny Central Select the Ackn parameter Select Ackn from the menu list 8 Go to the bottom of the parameter list and click on Save The error is acknowledged User Manual S C250U_500U BUSO91711 Error Diagnosis 37 Contact SMA Solar Technology AG 7 Contact If you have technical problems concerning our products contact the SMA Serviceline We require the following information in order to provide you with the necessary assistance e Inverter type e Type and number of modules connected e Serial number of the Sunny Central e Error number of the Sunny Central e Display of the Sunny Central SMA America Incorporated 4031 Alvis Court Rocklin CA 95677 Tel 1 916 625 0870 Fax 1 916 625 0871 Service SMA America com www SMA America com 38 SC250U_500U BUSO91711 User Manual SMA Solar Technology AG Appendix Glossary 8 Appendix Glossary AC Abbreviation for Alternating Current ANSI Abbreviation for American National Standards Institute BFR Abbreviation for operation control unit CEC Abbreviation for California Energy Commission Crossover cable A crossover cable is needed for example to connect two computers directly with one another A crossover cable is an 8 wire twisted pair cable with an RJ45 plug on each end In one of the plugs certain wires are interchanged DC Abbreviation for Direct Current Derating A controlled reduction in performa
31. to the main menu SMA Solar Technology AG Menu Istlevel Menu 2nd level Menu 3rd level Menu 4th level SETTINGS CURRENT TIME TIME SETTINGS SET CURRENT TIME HOUR MIN BACK SET CURRENT DATE YEAR MONTH DAY BACK BACK BACK INFO VERSION BFR VERSION DSP VERSION DISPLAY VERSION LCD BACK BACK 22 C250U_500U BUSO91711 User Manual SMA Solar Technology AG Operating the Sunny Display 4 5 1 Description of Menu Items SETTINGS In the Settings menu you can adjust the settings on the display e g date and time settings and display the current time CURRENT TIME Displays the current time TIME SETTINGS In this menu you can change the time and the date see Section 4 6 Changing the Date and Time Page 23 INFO The Info menu displays the firmware numbers of the Sunny Display and the Sunny Central VERSION BFR Displays the firmware number of the Sunny Central operation control unit BFR VERSION DSP Displays the firmware number of the Sunny Central Digital Signal Processor DSP VERSION DISPLAY Displays the firmware version of the Sunny Display VERSION LCD Displays the firmware number of the Sunny Display LCD 4 6 Changing the Date and Time If a Sunny WebBox is not built into the Sunny Central you can change the date and time on the Sunny Display If you wish to change the date or the time e g from summer to winter time proceed as follows 4 6 1 Changing the Time 1
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