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SMA Solar Technology AG

Measurement Channels and Messages

User Manual

SB_SMC_Schueco-BEN093730

37

MWE Defect DC

Internal measurement comparison fault or hardware defect.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline if this problem recurs.

MSD-dI

Internal measurement comparison fault or hardware defect.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline if this problem recurs.

MSD-FAC

Internal measurement comparison fault or hardware defect.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline if this problem recurs.

MSD-Vac

Internal measurement comparison fault or hardware defect.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline if this problem recurs.

MSD-Timeout /
NUW-Timeout

Internal measurement comparison fault or hardware defect.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline if this problem recurs.

MSD-Zac

Internal measurement comparison fault or hardware defect.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline if this problem recurs.

Offset

Fault in the acquisition of measurement data.

Corrective measures

• Please contact your installer or the SMA Solar Technology

Serviceline if this problem recurs.

PowerBalance

The Sunny Mini Central is part of a three-phase system with two further
Sunny Mini Centrals. This is equipped with the SMA Power Balancer for
preventing unbalanced loads. The operating parameter "PowerBalancer"
is set to "PhaseGuard" or "FaultGuard".

Corrective measures

• For more detailed descriptions of the operation modes

„PhaseGuard“ and „FaultGuard“ please refer to
Section 6.2 "Status Messages" (page 29) under „Balanced“.

Message

Description and corrective measure

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Summary of Contents for SB 1100

Page 1: ...User Manual PV Inverters SUNNY BOY SUNNY MINI CENTRAL ...

Page 2: ... Central Sunny Island Sunny Backup Sunny Beam Sunny Design Sunny Portal Sunny WebBox Multi String OptiCool H5 grid guard Power Balancer are registered trademarks of SMA Solar Technology AG SB_SMC_Schueco BEN093730 TBEN ALL K9A ...

Page 3: ...ial Phase 12 3 2 1 All LEDs are on 12 3 3 Normal Operation 12 3 3 1 All LEDs are off 12 3 3 2 The green LED is continuously on 13 3 3 3 The green LED is blinking slowly 13 3 3 4 The green LED is blinking rapidly 13 3 3 5 The green LED goes out briefly 14 3 4 Failures 15 3 4 1 The red LED is continuously on 16 3 4 2 The Red LED is blinking 17 3 4 3 The yellow LED is continuously on 17 3 4 4 The yel...

Page 4: ... 2 1 Display Messages when Fault Warnings Occur 25 4 2 2 Display Messages for Plant Disturbances 26 4 2 3 Rapid Blinking of Background Illumination 26 5 Maintenance and Cleaning 27 5 1 Checking Heat Dissipation 27 5 1 1 Cleaning the Cooling Fins 27 5 1 2 Cleaning the Fans 27 5 2 Cleaning the Display 27 6 Measurement Channels and Messages 28 6 1 Measuring Channels 28 6 2 Status Messages 29 6 3 Erro...

Page 5: ... For information on assembly installation commissioning and servicing of the inverter as well as for the device specific technical data please refer to the attached installation guide You will find further information on special topics such as details of the operating parameters in the download area at www SMA de en Sunny Boy Sunny Mini Central SB 1100 discontinued model SMC 4600A SMC 5000A SB 120...

Page 6: ... will result in death or serious injury WARNING WARNING indicates a hazardous situation which if not avoided could result 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 Information Information provides tips that are valuable...

Page 7: ...o the inverter Do not use the inverter for purposes other than those described here Alternative uses modifications to the inverter or the installation of components not expressly recommended or sold by the manufacturer void the warranty claims and operating permission If you have questions regarding the proper usage of the inverters please contact the SMA Solar Technology Serviceline Principle of ...

Page 8: ...Safety SMA Solar Technology AG 8 SB_SMC_Schueco BEN093730 User Manual Principle of a grid connected PV system with a Sunny Mini Central ...

Page 9: ...ed high voltages can still be present in the device These high voltages can result in death or serious injury CAUTION Enclosure body can get hot during operation Risk of burn injuries Do not touch The temperature of some parts of the inverter enclosure in particular the temperature of the heatsinks can reach over 60 C in normal operation Only touch lid and display during operation NOTICE Overvolta...

Page 10: ...and the device specific key data of the product The type plate illustrated here is a typical example showing the Sunny Boy 3800 outdoor Manufactured by Sonnenallee 1 34266 Niestetal Germany SMA Solar Technology AG 2000165882 Photovoltaic inverter made by SMA Solar Technology AG Type Art No SB 3800 Serial No 2000165882 Sunny Boy Schüco International KG Karolinenstraße 1 15 33609 Bielefeld Germany V...

Page 11: ...n in the following section LED Meaning Inverter Green In operation All Sunny Boys Sunny Mini Centrals Red Ground fault or varistor defective For the Sunny Boy models SB 1100 SB 1200 SB 1700 SB 2100TL SB 2500 SB 3000 SB 3300 SB 3300TLHC SB 3800 and Sunny Mini Central models SMC 4600A SMC 5000A SMC 6000A SMC 7000HV SMC 6000TL SMC 7000TL SMC 8000TL Ground fault varistor defective or string fuse defec...

Page 12: ... If all 3 LEDs are lit up simultaneously this is also an indication of normal operation initialization All other signals are a sign of faulty operation 3 3 1 All LEDs are off Overnight Shutdown The inverter is in the so called overnight shutdown mode This situation occurs if the inverter s input voltage is too low both for feeding into the grid and for satisfying the on board voltage requirements ...

Page 13: ...tart voltage start time are fulfilled and then begins monitoring the grid The PV voltage must reach the specified minimum value at least once before the inverter begins feeding into the grid 3 3 4 The green LED is blinking rapidly Stop The inverter is in Stop mode This occurs for instance when the measurement electronics are being calibrated After this the device switches to Waiting mode The Stop ...

Page 14: ...he fans are soiled Current derating Due to the type of module or the output and wiring of the generator the PV side input current exceeds the maximum possible input current The inverter switches to the Current derating mode in order to protect itself against overload Output derating This operating mode only occurs in systems which are operated using the Sunny Mini Central with integrated SMA Power...

Page 15: ...vertheless be investigated and corrected without delay Despite all precautions it is possible that other faults may occur which cannot be signaled e g failure of the status display In order to detect such faults the system operator should use the explanations in the following section to check the plausibility of the displayed mode e g an illuminated green LED in the dead of night indicates a defec...

Page 16: ...TL 10000TL 11000TL with Reactive Power Control When the red LED lights up continuously the inverter has detected a ground fault A separate blink code indicates a defective varistor or string fuse see Section 3 4 2 The Red LED is blinking page 17 Inverter equipped with integrated grounding set If the inverter is equipped with a grounding set a continuously lit red LED signals an unwanted ground fau...

Page 17: ... continues feeding into the grid 3 4 3 The yellow LED is continuously on Permanent Disable In the event of a recurring fault the inverter switches from operating mode to Permanent Disable mode and ceases grid feed A fault may have occurred that cannot be resolved on site If the inverter is equipped with a communications interface the installer can try to rectify the problem with the help of a comm...

Page 18: ...rid overvoltage voltage rise protection Grid underfrequency frequency decrease protection Grid overfrequency frequency increase protection Grid frequency change dFac Voltage increase protection activated Faulty grid connections e g N and L swapped or PE not connected SMC 9000TL RP 10000TL RP 11000TL RP Display message Check L N PE In systems which consist of 3 or more Sunny Mini Centrals the Power...

Page 19: ...to unacceptable grid impedance values If the inverter frequently displays this fault and switches off during grid monitoring the cause may be that grid impedance is too high Your installer should be able to correct this problem by increasing the cross section of the power line In some cases tightening the terminal clamps on the connection cable can also help Other measures can also be taken to cor...

Page 20: ...TL RP 10 11000TL RP 10 Input voltage has exceeded the maximal permissible limit The voltage of the PV generator has exceeded the inverter s permissible input voltage Error in the Generator In the inverter models Sunny Mini Central 9000TL 10000TL 11000TL with Reactive Power Control this blink code can occur in combination with the display warning Disturbance Earthfault This signifies that the insul...

Page 21: ...in For all transformerless devices this blink code can occur in combination with the display warning Disturbance Earthfault with the exception of SMC 9000TL RP 10 10000TL RP 10 11000TL RP 10 for which the warning is Disturbance Earthfault Sense and is caused by a fault in the insulation monitoring system Correction of error by installer If the device failure has a severe negative impact on normal ...

Page 22: ...arge current is dependent on the capacity of the PV generator relative to ground and also depends on the type of modules and manner of installation as well as the weather conditions Therefore it is quite normal for this value to vary over time However if the inverter frequently displays this fault please notify the installer who installed your PV system and clarify the reasons for the high level o...

Page 23: ...ential current and immediately stopped feeding into the grid The integrated all pole sensitive residual current monitoring unit monitors the differential current relative to ground from the inverter supply connection right through to the PV generator This additional personal protection system reacts to a drastic change in differential current of IDN 30 mA and disconnects the Sunny Boy Sunny Mini C...

Page 24: ...the firmware versions of the operation control unit BFR and the current control unit SRR are displayed Inverters that are equipped with the SMA Power Balancer subsequently indicate the operating mode of the SMA Power Balancer Display Messages Detailed explanations of the individual error and fault messages can be found in Section 6 Measurement Channels and Messages page 28 A description and explan...

Page 25: ...ase of the Sunny Mini Central with Reactive Power Control after a further 5 seconds or following another tap the current reactive power value QAC and the displacement factor cos ϕ PF are displayed This is followed by the total energy produced so far and the hours the device has been in operation 4 2 1 Display Messages when Fault Warnings Occur If a fault warning occurs the display immediately swit...

Page 26: ... another 5 seconds the normal operating data appear If the fault is still present the fault display cycle starts over again An overview of the status and error messages can be found in Section 6 Measurement Channels and Messages page 28 of this documentation Error ROM indicates that the inverter has recognized an error in the EEPROM firmware Please contact SMA Solar Technology to have the error co...

Page 27: ...rty Clean the cooling fins with a suitable soft brush 5 1 2 Cleaning the Fans Applies to Sunny Boy models SB 3300 SB 3800 and Sunny Mini Central If the fan guards are only covered in loose dust they can be cleaned with a vacuum cleaner If vacuum cleaning does not produce a satisfactory result please contact your installer who will dismantle the fans for cleaning The fan cleaning procedure is descr...

Page 28: ... Fac Grid frequency Fault current Differential current of the PV system inverter and PV generator h On Total number of operating hours h total Total number of grid feeding operational hours Iac Grid current active current Ipv DC current Is Apparent current applies only to inverters with Reactive Power Control Mode Display of the current operating mode Power On Total number of grid connections Pac ...

Page 29: ...nd disconnected from the grid Consequently the other two Sunny Mini Central inverters also disconnect from the grid to avoid an unbalanced load and send the message Balanced Case 2 The operating parameter PowerBalancer is set to PowerGuard One of the 3 Sunny Mini Centrals in this system has detected a device or grid fault and disconnected from the grid The two remaining Sunny Mini Centrals reduce ...

Page 30: ...e contact your installer to check the system Derating WR Der T WR Derating DC Der T DC Overtemperature in inverter WR or in the power electronics The Sunny Boy Sunny Mini Central reduces its power to prevent overheating of the device Corrective measures In the case of fan devices check heat dissipation as described in Section 5 1 Checking Heat Dissipation page 27 To avoid unnecessary yield losses ...

Page 31: ...verter is operating in MPP mode above its rated capacity MPP Search The inverter is calculating the MPP Maximum Power Point Off Grid The inverter is in Island mode This mode has been specially conceived for operation in a stand alone grid with a Sunny Island as grid controller Offset Offset adjustment of measurement electronics Stop Interruption of operation after a disturbance This status can als...

Page 32: ... at the connection point is too high The inverter disconnects to assure compliance with the voltage quality of the grid Corrective measures Please contact your installer or the SMA Solar Technology Serviceline Bfr Srr Internal measurement comparison fault or hardware defect Corrective measures Please contact your installer or the SMA Solar Technology Serviceline if this problem recurs CAN Internal...

Page 33: ...r or the SMA Solar Technology Serviceline when this problem occurs Derating Once the inverter enters the Derating mode it will display the Derating warning until the next total shutdown of the device at the end of the day Corrective measures See Section 3 3 5 The green LED goes out briefly page 14 for more information on this warning dFac Bfr dFac Srr Drastic grid frequency fluctuations exceed the...

Page 34: ... it means that inverter operation is permanently disabled If the inverter is equipped with a communication interface the installer can try to rectify the fault with the help of a communication product Should this be unsuccessful please contact the SMA Solar Technology Serviceline dI Test Error in differential current measurement Corrective measures Please contact your installer or the SMA Solar Te...

Page 35: ...s itself from the grid Corrective measures Please contact your installer to deal with the fault If the grid frequency is within the tolerance range yet Fac Bfr Fac Srr or FacFast faults are still being displayed please contact the SMA Solar Technology Serviceline HW Signal Internal measurement fault or hardware defect Corrective measures Please contact your installer or the SMA Solar Technology Se...

Page 36: ...occurs several times in succession Kom DC BFS Internal communication fault Corrective measures Please contact your installer or the SMA Solar Technology Serviceline if this problem recurs L N L and N are swapped on the AC connection Corrective measures Please contact your installer to have the plant checked over L Netz L WR N Netz N WR A grid relay is faulty The inverter checks the relays connecti...

Page 37: ... recurs MSD Timeout NUW Timeout Internal measurement comparison fault or hardware defect Corrective measures Please contact your installer or the SMA Solar Technology Serviceline if this problem recurs MSD Zac Internal measurement comparison fault or hardware defect Corrective measures Please contact your installer or the SMA Solar Technology Serviceline if this problem recurs Offset Fault in the ...

Page 38: ...inverter checks the relays connecting it to the grid before feeding power into the grid If the grid relays do not function properly the inverter does not connect to the grid for safety reasons Corrective measures If this fault message is displayed repeatedly it means that inverter operation is permanently disabled If the inverter is equipped with a communication interface the installer can try to ...

Page 39: ... problem recurs SD DI Wandler The inverter has detected an insulation fault on the DC side Corrective measures Please contact your installer to check whether the plant is properly insulated or a ground fault has occurred Further information is to be found in the inverter installation guide SD Imax The inverter has detected an overcurrent on the AC side It disconnects from the grid for safety reaso...

Page 40: ...tion page 27 Vac Bfr Vac Srr The grid current is no longer within the permissible range Bfr or Srr is an internal message that has no meaning for the user This can be caused by any of the following Grid disconnected line circuit breaker fuse AC cable is broken or AC cable is highly resistive For safety reasons the inverter disconnects itself from the grid Corrective measures Please contact your in...

Page 41: ...echnology Serviceline if this problem recurs Watchdog Watchdog Srr Internal program run fault Corrective measures Please contact your installer or the SMA Solar Technology Serviceline if this problem recurs Zac Bfr Zac Srr The grid impedance is no longer within the permissible range Bfr or Srr is an internal message that has no meaning for the user For safety reasons the inverter disconnects itsel...

Page 42: ...e and to prevent the formation of an unwanted stand alone grid SMA Grid Guard monitors the grid impedance and disconnects the inverter from the grid in the event of a sudden impedance variation Inverter A device for converting the direct current DC from the PV generator into alternating current AC which is used by most normal household devices and especially for feeding energy into an existing sup...

Page 43: ...l The SMA Power Balancer prevents the formation of an unbalanced load during three phase grid feeding To this effect a group made up of 3 Sunny Mini Centrals are each connected via a control line to a 3 phase feeding unit Solar cell An electronic component which generates electrical energy when irradiated with sunlight Since the voltage produced by a single solar cell is very small approx 0 5 V se...

Page 44: ...VA in total Varistor In the Sunny Boy and Sunny Mini Central varistors protect the electronics from atmospherically coupled energy peaks such as those that can occur in the conductor loop of the PV generator in the event of nearby lightning strikes They limit overvoltage by discharging the coupled current to earth During operation varistors are subject to a certain degree of ageing Varistors which...

Page 45: ...ormation in order to provide you with the necessary assistance Inverter type Communication method Type and number of modules connected Serial number of inverter Blink code or message displayed by the inverter SMA Solar Technology AG Sonnenallee 1 34266 Niestetal Germany www SMA de Serviceline Inverters 49 561 9522 1499 Communication 49 561 9522 2499 Fax 49 561 9522 4699 E mail Serviceline SMA de ...

Page 46: ...Contact SMA Solar Technology AG 46 SB_SMC_Schueco BEN093730 User Manual ...

Page 47: ...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 The use of supplied software produced by SMA Solar Technology AG is subject to the following conditions SMA Solar Technology AG ...

Page 48: ...Schüco International KG Karolinenstraße 1 15 33609 Bielefeld ...

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