Description
Fronius are a world-leading inverter, welding and battery manufacturer that specializes in innovation. Whilst they’re not the cheapest unit on the market, a range of packaged features makes them versatile and highly intelligent. A Fronius Tauro 50 has WiFi or ethernet logging and is suitable for large scale commercial systems.
Fronius also have a 10-year warranty as an on-going special offer and have built a name that people can trust over many years of service in Australia. These inverters are also suitable for zero export (when combined with Fronius’ energy meter) and like SMA, are one of the most ‘battery ready’ inverters on the market.
WiFi and Ethernet System Monitoring
Smart Grid Ready
Open Data Communication
Energy Management Function
Export Limitation and Dynamic Peak Manager
Proactive Service
| PV INPUT | |||
| Max DC Watts | 50,000 | ||
| Max DC Voltage | 1000v | ||
| Nominal DC Voltage | 200v | ||
| MPPT Voltage Range | 400-870v | ||
| Max Input Current | 22 | ||
| Max Short Circuit Current | 20 | ||
| MPPT Trackers | 3 | ||
| PV OUTPUT | |||
| Nominal AC Output | 50kVA | ||
| Max AC Current | 75.8/72.5 | ||
| Max Efficiency | 98.5% | ||
| FEATURES | |||
| Communications | Wifi/Ethernet Cable | ||
| Protection | IP 65 | ||
| Dimensions | 755x1109x346 | ||
| Weight | 92kg | ||
| Warranty | 10 Year | ||
| FAULT CODES | |||
| STATE 102 | AC voltage too high | Following careful testing and when the grid conditions are within the permissible range again, the inverter will resume feeding energy into the grid. | Check grid connections: If this STATE code keeps recurring contact your solar power system installer. |
| STATE 103 | AC voltage too low | ||
| STATE 105 | AC frequency too high | ||
| STATE 106 | AC frequency too low | ||
| STATE 107 | AC grid outside the permissible limits | ||
| STATE 108 | Stand-alone operation detected | ||
| STATE 112 | RCMU error | ||
| STATE 301 | Overcurrent (AC) | Short-term interruption while feeding energy into the grid due to overcurrent in the inverter. The inverter resumes with its startup routine. | Fault is rectified automatically; if this STATE code is displayed all the time: notify your local Fronius service partner. |
| STATE 302 | Overcurrent (DC) | ||
| STATE 303 | The power stage set over the temperature | Short-term interruption while feeding energy into the grid due to over temperature. The inverter resumes with its startup routine. | Purge openings for cooling air and heat sink if necessary; the fault is rectified automatically; if this STATE code keeps recurring contact your solar power system installer. |
| STATE 304 | Internal temperature too high | ||
| STATE 306 | LOW PV OUTPUT The intermediate circuit voltage is too low for feeding energy into the grid | Short-term interruption while feeding energy into the grid. The inverter resumes with its startup routine. | Fault is rectified automatically; if this STATE code occurs when there is sufficient insolation (sunlight) contact your solar power system installer. IMPORTANT! Due to the low level of insolation (sunlight) early in the morning and in the evening, the STATE codes 306 (LOW PV OUTPUT) and 307 LOW PV VOLTAGE) are displayed routinely at these times of day. These STATE codes do not indicate any kind of fault. |
| STATE 307 | LOW PV VOLTAGE DC input voltage is too low for feeding energy into the grid | ||
| STATE 308 | Intermediate circuit overvoltage | Short-term interruption while feeding energy into the grid. The inverter resumes with its startup routine. | Fault is rectified automatically; if this STATE code is displayed all the time: notify your local Fronius service partner. |
| STATE 309 | DC input voltage MPPT 1 too high | ||
| STATE 313 | DC input voltage MPPT 2 too high | ||
| Code | Description | Behaviour | Remedy |
| STATE 401 | No communication with the 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 | The power stage set temperature sensor is faulty | ||
| STATE 407 | The internal temperature sensor is 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 is possible between the power stage set and the 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 is 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 the 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 the inverter firmware; if this status code is displayed all the time please contact your local Fronius Service Partner. |
| STATE 437 | The power stage set the 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 | The 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 | The 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 | The 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 firmware; 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), and 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 the AC circuit breaker off and on), if the STATE code continues to be displayed notify your local Fronius Service Partner. | |
| STATE 502 | Insulation error on the solar panels | A 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 the 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 is 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 malfunctions 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 inverters terminals. This mode must be enabled by default in accordance with the latest Australian Standards. | Acknowledge the status code; if this STATE 567 code keeps recurring contact your local solar power system installer. |
| STATE 705 | Conflict when setting the inverter number (e.g. number already assigned) | – | Correct the inverter number via the setup menu |
| STATE 721 | EEPROM has been reinitialised or EEPROM is faulty | A warning message is shown on the display | Acknowledge STATE code; If the STATE code is displayed all the time contact your local Fronius Service Partner |
| STATE 731 | Initialisation error – USB stick is not supported | Check or replace the USB stick. Check the file system on the USB stick. If the STATE code is displayed all the time notify your local Fronius Service Partner. | |
| STATE 732 | Overcurrent on a USB stick | ||
| STATE 733 | No USB stick connected | Connect or check the USB stick. If the STATE code is displayed all the time contact your local Fronius Service Partner. | |
| STATE 734 | Update file not recognised or not present | Check update file (e.g. for the correct file name). If the STATE code is displayed all the time contact your local Fronius Service Partner. | |
| STATE 735 | The update file does not match the device, the update file is too old | A warning message appears on the display, update process is interrupted. | Update the inverter firmware; if the STATE code is displayed all the time after the firmware update contact your local Fronius Service Partner. If the STATE code is displayed all the time contact your local Fronius Service Partner. |
| STATE 736 | Write or read error occurred | A warning message is shown on the display | Check the USB stick and the data contained on it or replace the USB stick. Never unplug a USB stick if the ‘Data Transmission’ LED is still flashing or lit. If the STATE code is displayed contact your local Fronius Service Partner. |
| STATE 738 | Log files cannot be saved (e.g. USB stick is write protected or full)t | Create storage space, remove write protection, and check or replace the USB stick if necessary. If the STATE code is displayed all the time contact your local Fronius Service Partner. | |
| STATE 743 | An error occurred during the update process | Repeat the update process, and check the USB stick. If the STATE code is displayed all the time contact your local Fronius Service Partner. | |
| STATE 745 | Update file corrupt | A warning message appears on the display, update process is interrupted. | Redownload the firmware. If the STATE code is displayed all the time contact your local Fronius Service Partner. |
| STATE 751 | Time lost | A warning message is shown on the display | Reset the time and date on the inverter. Check the updated file (e.g. for the correct file name). If the STATE code is displayed all the time contact your local Fronius Service Partner. |
| STATE 752 | Real-Time Clock module communication error | ||
| STATE 757 | Hardware error in the Real Time Clock module | The error message is shown on the display; 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 758 | Internal error: Real Time Clock module is in emergency mode | Time may be inaccurate or lost (feeding energy into the grid normally).. | |
| STATE 766 | Emergency power de-rating has been activated | The error message is shown on the display. |
