(ch) The generator may be overloaded.
• Select the parameter 234.03 GnCurNom and set it to 75% of the rated current of the generator.
• If possible, reduce the power of the loads.
The maximum permissible generator voltage may be set too low.
• Select the parameter 234.02 GnVtgMax and set to the maximum generator voltage.
The minimum frequency for the generator voltage may be set too high.
• Select the parameter 234.05 GnFrqMin and set to the minimum frequency of the generator voltage.
The permitted time 234.14 GnRvTm for reverse power might have been exceeded.
• Check whether warning W401 is registered in the menu 420# Error history.
Useful hint: Tip: If a warning was registered, the warning symbol ” ! “ is shown in the standard mode of the Sunny Remote Control.
• Select the 540.02 GnAck parameter and set to Ackn. This acknowledges the generator error.
All work on the inverter and the cabling of the PV array must be carried out by an electrically qualified person. SMA accepts no liability for the information and solutions given in the Online Service Center. Additional information can be found in our Online Service Center’s terms and conditions of use.