Troubleshooting - SMA SUNNY ISLAND 4548-US Operating Manual

SMA Solar Technology America LLC
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20.9 Troubleshooting

Answers are provided below for faults that may occur in practice:
Why does the Sunny Island not connect to the running generator?
• Is the AC disconnection unit on the generator ok?
• Has the power which is allowed to be fed back into the generator during the permissible time
been exceeded (parameter "233.14 GnRvTm")? If yes, "!" is displayed. Generator connection
is blocked for the set time. Set the parameter "540.02 GnAck" to Ackn.
• If the generator control relay (GnReq) is open has the generator been started manually
(parameter "234.07 GnStrMod")? Change the setting to autostart, if required.
• Is a GenMan used in the system?
– Check the return signal (DigIn)
– The generator can only be started manually using GenMan.
Operating Manual
Description
Error message via SiCom: Different state of charge of the battery cells
Error message via SiCom: Error in the generator
Warning via SiCom: General
Warning via SiCom: Battery overvoltage
Warning via SiCom: Battery undervoltage
Warning via SiCom: Battery overtemperature
Warning via SiCom: Battery undertemperature
Warning via SiCom: Battery overtemperature in charge mode
Warning via SiCom: Battery undertemperature in charge mode
Warning via SiCom: battery charging current too high
Warning via SiCom: battery charging current in charge mode too high
Warning via SiCom: error in the battery
Warning via SiCom: short circuit
Warning via SiCom: internal error in battery management
Warning via SiCom: different state of charge of the battery cells
Warning via SiCom: Generator
Time for external battery management exceeded
Time for external battery management exceeded
20 Troubleshooting
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