
STATE 310
DC Low on Slave, only in Balance mode
Behaviors
Short interruption of power feeding into the grid, caused by the message from a slave power stage set.
The inverter returns to the startup phase.
Status Code Class 3
Class 3 status codes (state codes that start with a three, i.e., 3xx), may occur while feeding energy into the grid, but generally do not cause the process to be interrupted permanently.
The inverter temporarily disconnects automatically from the grid, the grid is then monitored as specified and the inverter attempts to resume feeding energy into the grid.
STATE 310 applies to:

CL
Solutions for this Error
Remedies
- Check DC cables at the inverter and ensure DC disconnects are in the ON position. Measure DC voltage, polarity, and isolation at the inverter clamps (Qualified Techs only).
- If this issue persists, the next steps include inspecting internal inverter components and their cabling by a trained Fronius Service Provider to further diagnose this specific issue. Defective components or the device itself may need to be replaced.
Get Help with this Error:
The best point of contact is your original installer
If the orginal installer is no longer available, contact a local Fronius Service Provider
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