Code
|
Description
|
Behaviour
|
Remedy
|
STATE 401 |
No communication with power stage set possible |
The inverter will automatically attempt to connect again and, if possible, will resume feeding energy into the grid. |
If the STATE code is displayed all the time contact your local Fronius Service Partner |
STATE 406 |
Power stage set temperature sensor faulty |
STATE 407 |
Internal temperature sensor faulty |
STATE 408 |
DC feeding into the grid detected |
STATE 412 |
Fixed voltage mode has been selected instead of MPP voltage mode and the fixed voltage has been set to too low or too high a value |
– |
If this STATE code persists contact your solar power system installer |
STATE 415 |
Safety cut out via option card or RECERBO has triggered |
The inverter is not feeding any energy into the grid. |
If the STATE code is displayed all the time contact your local Fronius Service Partner |
STATE 416 |
No communication possible between power stage set and control system |
The inverter will automatically attempt to reconnect again and, if possible, will resume feeding energy into the grid. |
STATE 417 |
Hardware ID problem |
STATE 419 |
Unique ID conflict |
STATE 421 |
HID range error |
STATE 425 |
No communication possible with the power stage set |
STATE 426-428 |
Possible hardware fault |
STATE 431 |
Software problem |
The inverter is not feeding any energy into the grid. |
Carry out an AC reset (switch the AC circuit breaker off and on); update inverter firmware; if this status code is displayed all the time please contact your local Fronius Service Partner. |
STATE 436 |
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. |
The inverter will automatically attempt to connect again and, if possible, will resume feeding energy into the grid. |
Update inverter firmware; if this status code is displayed all the time please contact your local Fronius Service Partner. |
STATE 437 |
Power stage set problem |
STATE 438 |
Functional incompatibility (one or more PC boards in the inverter in the inverter are not compatible with each other, e.g. after a PC board has been replaced) |
STATE 443 |
Intermediate circuit voltage too low or asymmetric |
The inverter is not feeding any energy into the grid. |
If the status code is displayed all the time contact your local Fronius Service Partners. |
STATE 445 |
Invalid limit value settings |
The inverter is not feeding any energy into the grid for safety reasons. |
Update the inverter firmware; if the STATE code is displayed all the time after the firmware update contact your local Fronius Service Partner. |
STATE 447 |
Insulation fault |
If this status code is displayed all the time: notify a local Fronius Service Partner |
STATE 448 |
Neutral conductor not connected |
STATE 450 |
Guard cannot be found |
STATE 452 |
Memory error detected |
The inverter will automatically attempt to connect again, and if possible, will resume feeding energy into the grid. |
If the STATE code is displayed all the time: notify your local Fronius Service Partner. |
STATE 452 |
Communication error between the processors |
STATE 453 |
Short term grid voltage error |
STATE 454 |
Short term grid frequency error |
STATE 456 |
Anti-islanding function is no longer implemented correctly |
STATE 457 |
Grid relay sticking |
The inverter is not feeding any energy into the grid. |
Contact your local Fronius Service Partner. |
STATE 459 |
Error when recording the measuring signal for the insulation test |
STATE 460 |
Reference voltage source for the digital signal processor (DSP) is working out of tolerance |
STATE 461 |
Fault in the DSP data memory |
STATE 462 |
Error with DC feed monitoring routine |
STATE 463 |
Reversed AC polarity, AC connector inserted incorrectly |
STATE 474 |
RCMU sensor faulty |
If this STATE code keeps recurring, contact your solar power system installer |
STATE 475 |
Solar panel ground fault, insulation fault (connection between solar panel and ground) |
STATE 476 |
Driver supply voltage too low |
STATE 480, 481 |
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) |
Update the inverter software; if the STATE code persists contact your local Fronius Service Partner |
STATE 482 |
Startup incomplete |
Perform AC reset (turn AC circuit breaker off and on), complete startup. |
STATE 483 |
Voltage UDC fixed on MPP2 string out of limits |
Check the MPP settings; if the status code is displayed all the time contact your local Fronius Service Partner |
STATE 485 |
CAN transmit buffer is full |
Carry out an AC reset (turn AC circuit breaker off and on), if the STATE code continues to be displayed notify your local Fronius Service Partner. |