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SUNNY BOY / SUNNY MINI CENTRAL /
SUNNY TRIPOWER
GUIDELINES FOR ERROR ANALYSIS
Service Manual
This document serves as a guide for troubleshooting in a PV system. Please have the measured values and data ready
when calling SMA in case the information in this document is not sufficient for troubleshooting.
This document is a supplement to the documentation that is provided with each product. It does not replace any locally
applicable standards or directives. Read and observe all documentation supplied with the product.
Danger to life due to high voltages in the inverter
When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the DC conductors and
the live components of the inverter. Touching the DC conductors or the live components can lead to lethal electric shocks.
• All work on the inverter must be carried out by qualified persons only.
• Prior to performing any work on the inverter, disconnect the inverter from any voltage sources (see inverter
installation manual).
• Do not touch any live components of the inverter.
Damage to the inverter due to electrostatic discharge
The internal components of the inverter can be irreparably damaged by electrostatic discharge.
• Ground yourself before touching any components.
Fehleranalyse-SG-en-10 | Version 1.0
ENGLISH
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Summary of Contents for SMA SUNNY BOY
- Page 1 This document serves as a guide for troubleshooting in a PV system. Please have the measured values and data ready when calling SMA in case the information in this document is not sufficient for troubleshooting. This document is a supplement to the documentation that is provided with each product. It does not replace any locally applicable standards or directives.
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Page 2: Error Messages
1 Error Messages SMA Solar Technology AG 1 Error Messages 1.1 Graphic Display kVAr kVArh MVArh Position Designation Event Messages Event number of errors 33xx Unstable operation 38xx DC overcurrent relating to the PV array 34xx DC overvoltage 39xx DC start conditions... - Page 3 SMA Solar Technology AG 1 Error Messages LEDs and Two-Line Display Designation Explanation Error messages relating to the PV array Display: • Upvmax • F-Riso • "waiting" LEDs: • Blink code 4 • Blink code 6 • Blink code 7 •...
- Page 4 2 Error Messages Relating to the PV Array SMA Solar Technology AG 2 Error Messages Relating to the PV Array Analysis/Test Data/Measured Values • When does the error occur? Matching the data sheet specifications with the design or the measured values of the system.
- Page 5 SMA Solar Technology AG 3 Error Messages Relating to the Utility Grid 3 Error Messages Relating to the Utility Grid Analysis/Test Data/Measured Values Grid errors refer to installation problems that result in the respective Phase voltage at inverter (normative) thresholds not being met in the inverter. During operation...
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Page 6: Device Errors
4 Error Messages Relating to the Inverter SMA Solar Technology AG 4 Error Messages Relating to the Inverter 4.1 Device Errors Analysis/Test Data/Measured Values The causes for device errors cannot always be clearly assigned. It is Read out the fault memory. -
Page 7: Miscellaneous Tests
• When using external string connecting boxes, was special attention paid to the correct circuitry, especially with multistring inverters? 6 Contacting SMA Should you need further assistance from SMA, please have the following data ready when calling: 1. Date of commissioning 2. Device type and serial number 3.