Fronius Primo 3.0-1 / 3.5-1 / 3.6-1 / 4.0-1 4.6-1 / 5.0-1 AUS / 5.0-1 5.0-1 SC / 6.0-1 / 8.2-1 Class 5 Error Code

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Fronius Class 5 State Error Codes

Fronius class 5 state error generally do not stop the feed in operation of the Fronius Primo inverter. The STATE codes will be displayed until the message is acknowledged by pushing a button on the display (the inverter will work in feed-in operation during this time).

Code

Description

Behavior

Remedy

STATE 502 Insulation error on the solar panels Warning message is shown on the display If this STATE code keeps recurring, contact your solar power system installer.
STATE 509 No energy fed into the grid in the past 24 hours Acknowledge STATE code; check whether all the conditions for the problem free feeding of energy into the grid have been met. If the STATE code is displayed all the time: look out for further STATE codes.
STATE 515 No communication with filter possible If the status code is displayed all the time notify your local Fronius Service Partner.
STATE 516 No communication possible with the storage unit Storage unit warning message.
STATE 517 Derating caused by too high a temperature When power derating occurs, a warning message is shown on the display Purge cooling air openings and heat sink if necessary; the fault is rectified automatically; if this STATE code keeps recurring contact your solar power system installer.
STATE 522 DC1 Input Voltage too low The DC voltage on input 1 of the inverter is too low Check voltage & polarity on input 1 of the inverter. If this STATE code keeps recurring please contact your solar power system installer.
STATE 523 DC2 Input Voltage too low The DC voltage on input 2 of the inverter is too low Check voltage & polarity on input 2 of the inverter. Check MPP settings/voltage at the “Installer Menu Basic”. If this STATE code keeps recurring please contact your solar power system installer.
STATE 558 Functional incompatibility (one or more PC boards in the inverter are not compatible with each other, e.g. after a PC board has been replaced) Possible error displays or malfunction on the inverter If this STATE code keeps recurring contact your solar power system installer.
STATE 560 Derating caused by over-frequency This STATE code is displayed when the grid frequency becomes excessively high. The inverter will then reduce its output. The status indicator will continue to be displayed until the inverter has returned to normal operation. As soon as the grid frequency is back within the permissible range and the inverter has returned to normal operation, the fault is rectified automatically. If this STATE code keeps recurring contact your solar power system installer.
STATE 566 Arc detector switched off (e.g. during external arc monitoring) The STATE code is displayed every day until the arc detector is reactivated. No error, Confirm status code by pressing ‘Enter’.
STATE 567 Grid Voltage Dependent Power Reduction is active This state code is a warning informing you that the Grid Voltage Dependent Power Reduction mode (GVDPR or Volt – Watt mode) has been activated and the inverter will continue to operate with reduced power output. This is because the grid voltage has exceeded 250Vac and the GVDPR has been enabled to try to reduce the voltage rise at the inverter’s terminals. This mode must be enabled by default in accordance with the latest Australian Standards. Acknowledge status code; if this STATE 567 code keeps recurring contact your local solar power system installer.
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