Related Manuals for SMA SUNNY BOY US
Summary of Contents for SMA SUNNY BOY US
- Page 1 PV Inverter SUNNY BOY US User Manual SB_CL_US-BUS094410 | TBUS-SBUS | Version 1.0...
- Page 3 (with no limitation) any implied warranties of utility, merchantability, or fitness for any particular purpose. All such warranties are expressly disclaimed. Neither SMA America, LLC nor its distributors or dealers shall be liable for any indirect, incidental, or consequential damages under any circumstances.
- Page 4 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. DANGER DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
- Page 5 SMA America, LLC Important Safety Instructions Other Symbols in this document In addition to the safety and hazard symbols described on the previous pages, the following symbol is also used in this User Manual: Information This symbol accompanies notes that call attention to supplementary information that you must know and use to ensure optimal operation of the system.
- Page 6 The Sunny Boy contains no user-serviceable parts except for the fans on the bottom of the enclosure and the filters behind the fans as well as the handle covers on the sides of the unit. For all repair and maintenance, always return the unit to an authorized SMA Service Center.
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Page 7: Table Of Contents
SMA America, LLC Table of Contents Table of Contents Notes on this manual......9 Validity . - Page 8 Table of Contents SMA America, LLC Display messages in the startup phase ....22 Display messages during operation ..... 22 Fault messages .
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Page 9: Notes On This Manual
You will find further information on special topics in the download area at www.SMA-America.com. 1.5 Nomenclature In this document SMA America Production, LLC is referred to in the following as SMA. The syntax specified here for menus and parameters applies throughout the entire manual:... -
Page 10: Safety
If you have questions regarding the proper usage of the inverters, contact the SMA Serviceline. Principle of the string inverter The string inverter is used to connect a number of series-connected PV modules (strings) to the public supply grid. -
Page 11: Safety Precautions
SMA America, LLC Safety 2.2 Safety precautions DANGER During operation, high voltages are present in the Sunny Boy. Death or serious injury due to electric shock. The following work on the inverter must be carried out by qualified personnel only. • Electrical installation •... -
Page 12: Identifying The Sunny Boy
Safety SMA America, LLC 2.3 Identifying the Sunny Boy You can identify the Sunny Boy by the type label. It is on the right side of the enclosure. Position Description Type label General warning label The type label shows: • The serial number (Serial No.). -
Page 13: Operating Modes
SMA America, LLC Operating modes 3 Operating modes The different operating modes are indicated by 3 light-emitting diodes (LEDs) on the inverter lid, and also via the integrated display (see section 4 "Information on the display" (page 21)). To allow the device to signal its operating mode via the 3 integrated LEDs, the inverter must be connected to the DC side of the system. -
Page 14: Led Operation Indicators
Operating modes SMA America, LLC 3.1 LED operation indicators 3.1.1 All LEDs are off Overnight shutdown The inverter is in standby mode because the input voltage is too low for operation. If this operating mode occurs during a sunny day with good irradiation, have the PV voltage checked by your installer. -
Page 15: The Green Led Is Blinking Slowly
SMA America, LLC Operating modes 3.1.4 The green LED is blinking slowly Waiting, Grid Monitoring The inverter has determined that there is enough voltage from the array to operate and is checking the condition of the grid prior to connecting to it. -
Page 16: Led Fault Indicators
Operating modes SMA America, LLC 3.2 LED fault indicators 3.2.1 Red and Yellow LEDs are on The inverter has detected a ground fault in the PV system and has disconnected from the grid. The ground fault must be located and fixed before the inverter will resume normal operation. -
Page 17: The Yellow Led Blinks Twice
SMA America, LLC Operating modes 3.2.3 The yellow LED blinks twice Grid failure The yellow LED is on for 5 sec., out for 3 sec. and then blinks twice. The code is repeated 3 times. This code sequence will repeat as long as there is a grid fault condition. -
Page 18: The Yellow Led Blinks 4 Times
The yellow LED is on for 5 sec., remains off for 3 sec. and then blinks 5 times. The code is repeated 3 times. If the condition remains the code will continue to be sent. The inverter has encountered an internal fault that prohibits normal operation and will most likely require servicing. Contact SMA for assistance. SB_CL_US-BUS094410 User Manual... -
Page 19: The Yellow Led Blinks 6 Times
This fault message can also be triggered by a PE connection which is not connected to the inverter. Correction of error by installer Contact your installer to deal with the fault or get in touch with the SMA Serviceline. User Manual... -
Page 20: The Yellow Led Blinks 7 Times
Operating modes SMA America, LLC 3.2.7 The yellow LED blinks 7 times Drastic change in differential current Differential current The fault "Drastic change in differential current" can only occur in transformerless inverters. Transformerless inverters can be identified by their device designation. The "TL" in the name stands for transformerless, e.g. -
Page 21: Information On The Display
SMA America, LLC Information on the display 4 Information on the display Sunny Boy inverters are equipped with a LC display in the lid. Display Messages Detailed explanations of the individual error and fault messages can be found in section 6 "Measurement channels and messages" (page 26). -
Page 22: Display Messages In The Startup Phase
Information on the display SMA America, LLC 4.2 Display messages in the startup phase • After startup of the inverter, the display first shows the device type. • After 6 sec., the display shows the firmware versions of the operation control unit (BFR) and the current control unit (SRR). -
Page 23: Disturbance
An Error condition will prevent the inverter from restarting until the condition is cleared. • "Error ROM" indicates that the inverter has recognized an error in the EEPROM firmware. Contact SMA to have the error corrected. User Manual SB_CL_US-BUS094410... -
Page 24: Rapid Blinking Of Background Illumination
Information on the display SMA America, LLC 4.4.4 Rapid Blinking of background illumination DC Overvoltage If an excessive DC input voltage is present at the Sunny Boy, this is indicated by rapid blinking of the background illumination and the message shown on the right. -
Page 25: Maintenance And Cleaning
SMA America, LLC Maintenance and cleaning 5 Maintenance and cleaning Check the correct operation of the inverter at regular intervals. Impurities such as dust or pollen can cause heat accumulation that can lead to yield losses. Also check the inverters and the cables for visible external damage. -
Page 26: Measurement Channels And Messages
Measurement channels and messages SMA America, LLC 6 Measurement channels and messages If your inverter is equipped with a communication component, then numerous measurement channels and messages to aid diagnosis can be transmitted. The following abbreviations apply: BFR: Operation control unit SRR: Current control unit The BFR and SRR are redundant processor control systems for the utility protection functions. -
Page 27: Status Messages
6 kW (adustable with parameter PowerBalMax) over a 10-minute average. The Sunny Boy is part of a three-phase system equipped with two further Sunny Boys and the SMA Power Balancer to avoid unbalanced load. The "Balanced" message is displayed for the following reasons: Case 1: The operating parameter "PowerBalancer"... - Page 28 Disturbance Disturbance. This error is generated for safety reasons and prevents the Sunny Boy from connecting to the grid. Corrective measures • Contact your installer or SMA. Error An error has been detected. Corrective measures • Contact your installer or SMA.
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Page 29: Error Messages
• Your installer must check the DC voltage, as described in the inverter installation guide. Internal communication fault. Corrective measures • Contact your installer or the SMA Serviceline if this problem recurs. Check L-N-PE L and N are swapped on the AC connection or PE is not connected. Corrective measures •... - Page 30 HW-Signal Internal measurement fault or hardware defect. Corrective measures • Contact your installer or the SMA Serviceline if this problem recurs. Iac-DC_Offs-Srr The DC component of the electricity being fed into the grid has exceeded the permissible range. For safety reasons, the inverter disconnects itself from the grid.
- Page 31 • Contact your installer or SMA if this problem recurs. MSD-Timeout Internal measurement comparison fault or hardware defect. Corrective measures • Contact your installer or the SMA Serviceline if this problem recurs. Offset Fault in the acquisition of measurement data. Corrective measures •...
- Page 32 Riso-Sense The insulation measurement has failed. Corrective measures • Contact your installer or the SMA Serviceline if this problem recurs. The inverter firmware is faulty. Corrective measures • Contact your installer or SMA if this problem recurs.
- Page 33 Description and corrective measure STM-Timeout Internal program run fault. Corrective measures • Please contact your installer or the SMA Serviceline if this problem recurs. Vac-Bfr The grid voltage 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...
- Page 34 VdclinkMax The internal hardware monitor has detected an overvoltage condition in the intermediate circuit of the inverter. Corrective measures • Contact your installer or the SMA Serviceline if this problem recurs. VpvMax Overvoltage at DC input. Corrective measures • Contact your installer who will immediately disconnect the PV generator from the inverter! Otherwise, the inverter may be damaged.
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Page 35: Glossary
In order to detect this occurrence, 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. - Page 36 SMA Power Balancer The SMA Power Balancer is a serial feature of the Sunny Boy. 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 Boys are each connected via a control line to a 3-phase feeding unit.
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Page 37: Contact
SMA America, LLC Contact 8 Contact If you have technical problems concerning our products, contact your installer or the SMA Serviceline. We require the following information in order to provide you with the necessary assistance: • Inverter type • Type and number of modules connected •...