11 Troubleshooting
SMA Solar Technology AG
Operating manualSTPxx-US-50-BE-en-1176
Corrective measures:
• If possible, check the grid frequency and observe how often fluctuations occur. If fluctuations
occur frequently and this message is displayed often, contact the grid operator and request
approval to change the operating parameters of the inverter. If the grid operator gives his
approval, discuss any changes to the operating parameters with the Service.
11.1.11 Event 601
Event message:
• Grid incident
Explanation:
The inverter has detected an excessively high proportion of direct current in the grid current.
Corrective measures:
• Check the grid connection for direct current.
• If this message is displayed frequently, contact the grid operator and check whether the
monitoring threshold on the inverter can be raised.
11.1.12 Event 701
Event message:
• Frequency not permitted
• Check parameter
Explanation:
The grid frequency is not within the permissible range. The inverter has disconnected from the utility
grid.
Corrective measures:
• Check the AC cabling from the inverter to the feed-in meter.
• If possible, check the grid frequency and observe how often fluctuations occur.
If fluctuations occur frequently and this message is displayed often, contact the grid operator
and request approval to change the operating parameters of the inverter.
If the grid operator gives his approval, discuss any changes to the operating parameters with
the Service.
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