SMA Inverter Error Codes

101

102

103

The voltage of the grid or the impedance at the point where the inverter is connected is excessively high. Consequently, the inverter has become disconnected from the utility grid.

Steps for rectification:

1. Verify whether the voltage of the grid at the connection point of the inverter consistently falls within the allowed range.

2. If the grid voltage exceeds the acceptable range due to local grid conditions, it is advisable to get in touch with the grid operator. The grid operator will need to approve adjusting the voltage at the point of feed-in or modifying the monitored operational limits.

3. In case the grid voltage consistently remains within the permissible range, but the aforementioned message persists, please contact our Service department for further assistance.

202

203

205

Grid fault

The utility grid connection has been interrupted, potentially due to a damaged AC cable or a low grid voltage at the inverter’s connection point. As a result, the inverter has become disconnected from the utility grid.

Here are the necessary steps to address the issue:

1. Double-check that the circuit breaker is in the “on” position.

2. Verify that the AC cable is undamaged and securely connected.

3. Ensure that the country data set has been accurately configured.

4. Examine whether the grid voltage at the inverter’s connection point consistently falls within the permissible range.

5. If the grid voltage is outside the acceptable range due to local grid conditions, it is recommended to contact the grid operator. The grid operator will need to approve adjusting the voltage at the feed-in point or consider modifying the monitored operating limits.

6. If the grid voltage remains consistently within the permissible range but the error message persists, please reach out to our Service department for further assistance.

301

Grid fault

The average value of the grid voltage over a ten-minute period has exceeded the permissible range. This indicates that the grid voltage or grid impedance at the inverter’s connection point is too high. In order to maintain power quality, the inverter has disconnected from the utility grid.

To address this issue, please follow these corrective measures:

1. While the feed-in operation is ongoing, regularly monitor the grid voltage at the inverter’s connection point to ensure it consistently falls within the permissible range.

2. If the grid voltage is outside the acceptable range due to local grid conditions, it is important to contact the grid operator. The grid operator needs to be informed and may need to make adjustments to the voltage at the feed-in point or modify the monitored operating limits in agreement with them.

3. If the grid voltage remains permanently within the permissible range, but the error message persists, please get in touch with our Service department for further assistance.

302

Active power limit AC voltage

In order to maintain grid stability, the inverter has decreased its power output as a result of excessively high grid voltage.

To address this issue, please follow these corrective measures:

1. If feasible, monitor the grid voltage and observe the frequency of fluctuations. If fluctuations occur frequently and this message is frequently displayed, it is advisable to contact the grid operator. Request their approval to modify the operating parameters of the inverter.
2. Upon receiving approval from the grid operator, engage in a discussion with our Service department regarding the necessary changes to the operating parameters.

401

404

Grid fault

The inverter has become disconnected from the utility grid due to the detection of either a stand-alone grid or a significant and sudden change in power frequency.

To address this issue, it is recommended to take the following corrective measure:

1. Examine the grid connection for any noticeable short-term frequency fluctuations.

501

Grid fault

The power frequency is currently outside the allowed range, leading to the disconnection of the inverter from the utility grid.

To rectify this issue, please follow the suggested corrective measures:

1. Whenever feasible, monitor the power frequency and take note of the frequency and occurrence of fluctuations.
2. If frequent fluctuations are observed and this error message is frequently displayed, it is recommended to contact the grid operator. Request their approval for modifying the operating parameters of the inverter.
3. Once the grid operator grants approval, engage in a discussion with our Service department to discuss and implement the necessary changes to the inverter’s operating parameters.

601

Grid fault

The inverter has identified an abnormally high level of direct current in the grid current.

To address this issue, please follow the recommended corrective measures:

1. Inspect the grid connection for the presence of direct current.
2. If you frequently encounter this error message, it is advisable to contact the grid operator. Discuss the situation with them and inquire about the possibility of increasing the monitoring threshold on the inverter.

701

Frequency not permitted > Check parameter

The power frequency is currently outside the acceptable range, resulting in the disconnection of the inverter from the utility grid.

To rectify this issue, please follow the provided corrective measures:

1. If feasible, check the power frequency and monitor the frequency and frequency of fluctuations.
2. If frequent fluctuations occur and this error message is displayed regularly, it is recommended to contact the grid operator. Request their approval to modify the operating parameters of the inverter.
3. Once the grid operator grants approval, engage in a discussion with our Service department to discuss and implement any necessary changes to the inverter’s operating parameters.

901

PE connection missing > Check connection

To resolve the issue, please take the following corrective measure:

1. Verify that the grounding conductor is properly connected.

1001

L / N swapped > Check connection

To address the issue, please follow these corrective measures:

1. Double-check the connection of L (Line) and N (Neutral) wires.
2. Ensure that L and N are correctly connected, with the Line wire connected to the designated Line terminal and the Neutral wire connected to the corresponding Neutral terminal.

1101

Installation fault > Check connection

To resolve the issue, please take the following corrective measure:

1. Disconnect the second line conductor that is currently connected to N (Neutral).
2. Properly connect the neutral conductor to the N terminal.

1302

Waiting for grid voltage > Installation failure grid connection > Check grid and fuses

To address the issue of L or N not being connected, please follow these corrective measures:

1. Verify that both L (Line) and N (Neutral) wires are properly connected. Ensure that they are securely connected to their respective terminals.
2. Check that the circuit breaker associated with the connection is switched on. If it is in the off position, switch it on.
3. Inspect the AC cable for any signs of damage, such as cuts or frayed wires. Ensure that the cable is correctly connected and securely attached at both ends.

1501

Reconnection fault grid

To address the issue of the changed country data set or incorrect parameter value causing the inverter’s inability to connect to the utility grid, please follow these corrective measures:

1. Verify that the country data set has been configured correctly. Access the parameter settings and locate the option for “Set country standard.” Ensure that the selected value corresponds accurately to the local requirements.
2. Check the currently set value for the “Set country standard” parameter and compare it with the appropriate country standard for your location. If there is a discrepancy, update the value to match the correct country standard.

3301

3302

3303

Unstable operation

To address the issue of insufficient power at the DC input of the inverter, resulting in the inability to connect to the utility grid, please follow these corrective measures:

1. Verify that the PV (Photovoltaic) array is designed correctly. Check the specifications and requirements for the PV array to ensure it is appropriately sized and configured for the inverter’s power requirements.
2. Ensure that the PV array is not obstructed by snow or any shading objects. Clear away any snow or debris that may be covering the PV array and preventing it from receiving adequate sunlight.
3. Inspect the PV array for any errors or malfunctions. Check for any damaged panels, wiring issues, or faulty components that could affect the overall performance of the PV array.

3401

3402

3407

DC overvoltage > Disconnect generator

To address the issue of overvoltage at the DC input, which can potentially damage the inverter, please follow these corrective measures:

1. Take immediate action to disconnect the inverter from all voltage sources to prevent further damage or risks.
2. Check the DC voltage and ensure that it is below the maximum input voltage specified for the inverter. If the DC voltage falls within the acceptable range, you can reconnect the DC connectors to the inverter.
3. However, if the DC voltage exceeds the maximum input voltage of the inverter, it is crucial to ensure that the PV array (solar panels) has been correctly rated and sized. You may need to contact the installer of the PV array to address any potential issues or make necessary adjustments.
4. If you continue to encounter this message frequently, it is recommended to contact our Service department for further assistance and guidance.

3501

Insulation failure > Check generator

To address the ground fault detected in the PV (Photovoltaic) array by the inverter, please follow these corrective measures:

1. Proceed to check the PV system thoroughly for ground faults. A ground fault indicates an electrical connection between the PV array and the ground, which can cause safety hazards and impact the proper functioning of the system.
2. Inspect the PV array wiring, connectors, and components for any signs of damage or loose connections. Pay close attention to areas where wires may come into contact with the ground or other conductive surfaces.
3. Utilize appropriate testing equipment, such as a ground fault detector or a multimeter, to identify the precise location of the ground fault within the PV system.
4. Once the ground fault is identified, take the necessary steps to rectify the issue. This may involve repairing or replacing damaged components, ensuring proper insulation and separation of conductors, or resolving any wiring or connection problems.

3701

Residual current too high > Check generator

To address the detection of residual current caused by temporary grounding of the PV array by the inverter, please follow these corrective measures:

1. Begin by thoroughly inspecting the PV system to identify any potential ground faults. A ground fault can occur when an unintended electrical connection exists between the PV array and the ground.
2. Examine the wiring, connectors, and components of the PV array for any signs of damage or loose connections that may contribute to the residual current issue.
3. Utilize appropriate testing equipment, such as a ground fault detector or a multimeter, to assist in locating and diagnosing any ground faults within the PV system.
4. Once a ground fault is identified, take the necessary steps to resolve it promptly. This may involve repairing or replacing damaged components, ensuring proper insulation and separation of conductors, or addressing any issues with wiring or connections.

3801

3802

3805

DC overcurrent > Check generator

To address the issue of overcurrent at the DC input, causing intermittent interruptions in the feed-in operation of the inverter, please follow these corrective measures:

1. If you frequently encounter this error message, it is essential to verify that the PV (Photovoltaic) array has been correctly rated and wired according to the specifications provided by the manufacturer.
2. Check the rating of the PV array to ensure that it is suitable for the inverter’s input capacity. The PV array should be capable of supplying the required current without exceeding the limits of the inverter.
3. Inspect the wiring of the PV array to confirm that it is properly installed and configured. Check for any loose connections, damaged cables, or incorrect wiring that may contribute to overcurrent situations.
4. If you have any doubts or concerns about the rating or wiring of the PV array, it is recommended to consult with a professional installer or electrician experienced in solar systems to assess and rectify any potential issues.

3901

3902

Waiting for DC start conditions > Start conditions not met

To address the issue of feed-in conditions not being fulfilled for the utility grid, please follow these corrective measures:

1. Verify that the PV (Photovoltaic) array is not obstructed by snow or shading. Clear away any snow or debris that may be covering the PV array and preventing it from receiving sufficient sunlight.
2. If the message is displayed during periods of low irradiation, it may be necessary to wait for higher levels of sunlight. Higher irradiation levels provide the necessary energy for the PV array to meet the feed-in conditions of the utility grid.
3. If the message is frequently displayed in the morning, it could indicate a need to increase the voltage limit for starting grid feed-in. Adjust the parameter called “Critical voltage to start feed-in” to allow the inverter to initiate feed-in at a lower voltage threshold.
4. If the message persists during periods of medium irradiation, ensure that the PV array is correctly rated. Verify that it is appropriately sized and capable of generating the required power output to fulfill the feed-in conditions of the utility grid.

4011

Bridged strings determined

The DC inputs A and B are connected in parallel.

4012

No bridged strings determined

The DC inputs A and B are not connected in parallel.

6002-6412

Self-diagnosis > Interference device

The cause must be determined by the Service.

Corrective measures:

Contact the Service.

6501

6502

6509

Self-diagnosis > Overtemperature

1. Clean the cooling fins located on the rear of the inverter’s enclosure and the air ducts on the top. Use a soft brush to remove any dust, debris, or obstructions that may impede proper airflow and cooling.
2. Ensure that the inverter has sufficient ventilation. Check that there is ample space around the inverter for air to flow freely and dissipate heat effectively. Avoid blocking or obstructing the ventilation openings of the inverter.
3. Verify that the ambient temperature surrounding the inverter does not exceed the maximum operating temperature specified by the manufacturer, typically indicated as +40 °C. If the temperature exceeds this limit, consider implementing additional cooling measures or relocating the inverter to a cooler environment if feasible.
4. Prevent the inverter from direct solar irradiation. Ensure that it is not exposed to direct sunlight or other sources of intense heat, as this can significantly increase the operating temperature and lead to shutdowns. Provide shade or use appropriate shielding to protect the inverter from direct solar exposure.

6512

Minimum operating temperature not reached

The grid feed-in will resume only when the temperature drops to a minimum of -25°C.

6602

6603

6604

Self-diagnosis > Overload

The cause must be determined by the Service.

Corrective measures:

Contact the Service.

6801

6802

Self-diagnosis > Input A defective

Corrective measures:

Check whether a string is connected to input A.

Contact the service.

6901

6902

Self-diagnosis > Input B defective

Corrective measures:

Check whether a string is connected to input B.

Contact the service.

6701

6702

Communication disturbed

Error in the communication processor, the inverter continues feeding in, however. The cause must be determined by the Service.

Corrective measures:

If this message is displayed frequently, contact the Service.

Parameter file not found or defective

The parameter file is either missing or corrupted, resulting in a failed update. Despite this, the inverter continues to feed in.

To rectify the situation, please perform the following corrective measures:

1. Re-copy the parameter file to the appropriate folder.

Parameter setting failed

The attempt to set parameters using the memory card was unsuccessful, yet the inverter persists in feeding in.

To address this issue, please take the following corrective measures:

1. Double-check that the parameters are configured accurately.
2. Ensure that the SMA Grid Guard code is accessible and properly implemented.

Update file defective

The update file is faulty, resulting in a failed update, while the inverter continues to feed in.

To resolve this issue, please follow the corrective measures below:

1. Verify the integrity of the update file. Ensure that it is not corrupted or incomplete.
2. Obtain a new, functional update file from a reliable source.
3. Retry the update process using the updated and error-free file.

No update file found

Despite searching for a new update file on the SD memory card, none was found, resulting in a failed update. However, the inverter persists in feeding in.

To address this issue, please consider the following corrective measures:

1. Double-check that the SD memory card contains the correct update file. Ensure that the file is named properly and located in the appropriate directory.
2. If the update file is indeed missing, obtain a new and compatible update file from the manufacturer’s website or a trusted source.
3. Copy the new update file onto the SD memory card in the correct folder.
4. Retry the update process using the newly acquired update file.

Update main CPU failed

The cause must be determined by the Service.

Corrective measures:

Contact the Service.

The device was successfully updated

The firmware update was completed successfully.

Condition test failed

The testing of the update conditions was successful. The firmware update package is suitable for this inverter.

Update transport started

Update file is being copied.

Update transport successful

Update file was copied successfully to the inverter’s internal memory.

Update transport failed

The update file could not be copied to the inverter’s internal memory, and a poor connection quality via WLAN may be the underlying cause.

To address this issue, please follow the corrective measures outlined below:

1. Retry the update process. Sometimes, the issue may be resolved by attempting the update again.

For WLAN connection:

2. Improve the WLAN connection quality. You can achieve this by using a WLAN repeater to strengthen the signal or ensuring that the inverter is within range of a strong and stable WLAN signal.

3. Alternatively, establish a connection with the inverter via Ethernet. This can provide a more reliable and stable connection for the update process.

Update Bootloader

The inverter is performing a bootloader update.

Incompatible file

The current configuration file is not compatible with this specific inverter.

To rectify this issue, please take the following corrective measures:

1. Ensure that you have selected the appropriate configuration file that is specifically designed for this inverter model.
2. Double-check the compatibility of the configuration file with the inverter’s specifications and requirements.
3. Retry the import process using the correct and suitable configuration file.

Incorrect file format

The selected configuration file does not meet the required format or has become damaged.

To address this issue, please follow these corrective measures:

1. Verify that the configuration file you have chosen adheres to the required format specified by the inverter manufacturer. Refer to the documentation or guidelines provided by the manufacturer to ensure compatibility.
2. Ensure that the configuration file is not damaged or corrupted. If possible, obtain a fresh and reliable copy of the configuration file from a trusted source.
3. Retry the import process using the verified, correctly formatted, and undamaged configuration file.

Incorrect login rights for configuration file

The user group currently logged in lacks the necessary user rights to perform the configuration import.

To resolve this issue, please follow these corrective measures:

1. Log out of the current user account.
2. Log in using an account with Installer privileges or administrative rights.
3. Once logged in as an Installer, attempt to import the configuration file again.

Transfer of a configuration file has started

The configuration file is being transferred.

Update WLAN

The inverter is updating the WLAN module.

Update of WLAN not successful

The update process for the WLAN module has encountered a failure.

To address this issue, please follow the corrective measures outlined below:

1. Retry the update process. Sometimes, a temporary glitch or network issue can cause the update to fail. Attempting the update again may resolve the problem.

If the error message persists after retrying the update:

2. Contact the Service for further assistance. They will be able to provide specialized support and guidance to diagnose and resolve the specific issue with the WLAN module update.

Update time zone database

The inverter is updating the time zone database.

Update of time zone database not successful

The update process for the time zone database has encountered a failure.

To address this issue, please follow the corrective measures outlined below:

1. Retry the update process. Sometimes, a temporary glitch or connectivity issue can cause the update to fail. Attempting the update again may resolve the problem.

If the error message persists after retrying the update:

2. Contact the Service for further assistance. They will be able to provide specialized support and guidance to diagnose and resolve the specific issue with the time zone database update.

Update WebUI

The inverter is updating the inverter user interface.

Update of the WebUI not successful

The update of the inverter user interface failed.

Corrective measures:

Retry update.

If this message is displayed again, contact the Service.

Fan fault > Check inverter electr. and fan

Corrective measures:

Contact the Service.

Communication fault with meter unit > Check communication to meter

The inverter is currently not receiving any data from the energy meter.

To address this issue, please follow the corrective measures outlined below:

1. Verify that the energy meter is properly integrated into the same network as the inverter. Refer to the energy meter’s manual or documentation for instructions on how to correctly set up the integration.

For WLAN connection:

2. Improve the WLAN connection quality to ensure a stable and reliable connection between the inverter and the energy meter. You can achieve this by using a WLAN repeater to strengthen the signal or enhance the overall WLAN network setup.

3. Alternatively, connect the inverter directly to the DHCP server (router) using an Ethernet cable. This can provide a more stable and consistent connection for data transfer.

Interference device

The cause must be determined by the Service.

Corrective measures:

Contact the Service.

Active power limit Temperature

The inverter’s power output has been reduced for over ten minutes due to excessive temperature.

To address this issue and prevent further overheating, please follow the corrective measures outlined below:

1. Clean the cooling fins located on the rear of the enclosure and the air ducts on the top of the inverter using a soft brush. Removing any accumulated dust or debris will improve heat dissipation and aid in maintaining optimal temperature levels.

2. Ensure that the inverter has adequate ventilation. Check that there are no obstructions blocking the airflow around the inverter. Maintain a clear space around the inverter to allow for proper ventilation.

3. Monitor and control the ambient temperature to ensure it does not exceed +40 °C. Excessive ambient temperature can contribute to increased heat within the inverter. Consider implementing additional cooling measures if necessary, such as installing fans or improving overall ventilation in the environment.

4. Prevent direct solar irradiation on the inverter. Exposure to direct sunlight can significantly raise the temperature of the inverter. Position the inverter in a shaded area or install protective covers or shades to shield it from direct solar radiation.

Communication disturbed

The cause must be determined by the Service.

Corrective measures:

Contact the Service.

SMA Grid Guard code invalid

The SMA Grid Guard code entered is incorrect. The operating parameters are still protected and cannot be changed.

Corrective measures:

Enter the correct SMA Grid Guard code.

Grid parameter locked

Changes to the grid parameters are now blocked. In order to be able to make changes to the grid parameters, from now on you must log in using the SMA Grid Guard code.

Changing of grid parameters not possible > Ensure DC supply

The error message can be caused by the following issues:

1. The parameters that need to be modified are protected, preventing changes from being made.
2. The DC voltage supplied to the DC input is insufficient to power the main CPU.

To resolve this issue, please follow the corrective measures outlined below:

1. Enter the SMA Grid Guard code. This code is required to access and modify protected parameters. Ensure that you have the correct code and enter it to gain the necessary access.

2. Verify that the DC start voltage is available. Check the status of the green LED on the inverter. If it is flashing, pulsing, or glowing, it indicates that at least the DC start voltage is present. If the LED is not displaying any of these indicators, there may be an issue with the DC voltage supply. Troubleshoot the DC input and ensure that it provides the required voltage to power the main CPU.

Abort self-test

The self-test (Italy only) was terminated.

Corrective measures:

Ensure that the AC connection is correct.

Restart the self-test.

Time synchronization failed: |tn0|

The inverter is unable to retrieve time information from the configured NTP server.

To address this issue, please follow the corrective measures outlined below:

1. Verify that the NTP server was configured correctly. Check the settings in the inverter’s configuration to ensure the correct server address or hostname is entered. Additionally, confirm that any necessary authentication or port configurations are properly set up.

2. Ensure that the inverter is integrated into a local network with an active Internet connection. The inverter needs access to the Internet to communicate with the NTP server and retrieve accurate time information. Verify the network connection of the inverter and ensure it is properly connected to a network that has Internet connectivity.

Parameter upload complete

The configuration file was loaded successfully.

[Interface]: network busy

The network is currently experiencing high traffic, causing significant delays and suboptimal data exchange between devices.

To address this issue, please follow the corrective measures outlined below:

1. Increase the query intervals between devices. Adjusting the intervals at which devices communicate with each other can help alleviate the network congestion and reduce delays. Consider increasing the time between data requests or updates to reduce the overall network load.

2. If necessary, reduce the number of devices in the network. A large number of devices connected to the network can contribute to increased traffic and congestion. Assess the network setup and identify any devices that may not be essential or could be offloaded to a separate network. Removing or redistributing devices can help alleviate network congestion and improve data exchange performance.

[Interface]: network overloaded

The network is overloaded. There is no data exchange between the devices.

Corrective measures:

Reduce the number of devices in the network.

If necessary, increase the data query intervals.

[Interface]: package error rate [ok / high]

The package error rate has shown a change, indicating a potentially high rate of errors in the network. This can be attributed to network overload or disruptions in the connection to the network switch or DHCP server (router).

To address this issue, please consider the following corrective measures if the package error rate is high:

1. Verify the integrity of the Ethernet connection. Ensure that the network cable and connectors are undamaged and properly connected. Check that the network connectors are securely plugged into the appropriate ports to ensure a stable and reliable connection.

2. If the high package error rate persists, consider increasing the data query intervals. Adjusting the intervals at which data is requested or exchanged between devices can help alleviate network congestion and reduce errors. Increasing the intervals can provide more time for data transmission, reducing the chances of errors occurring.

3. Assess the number of devices connected to the network. If the network is overwhelmed with a large number of devices, it can lead to increased congestion and higher error rates. In such cases, reducing the number of devices in the network or redistributing them to separate networks can help alleviate the burden and improve overall network performance.

[Interface]: communication status goes to [OK / Warning / Error / Not connected]

The communication status to the network switch or DHCP server (router) has changed. An additional error message may be displayed.

[Interface]: communication disrupted

The network line currently does not have a valid signal, indicating a potential issue with the Ethernet connection.

To address this issue, please follow the corrective measures outlined below:

1. Verify the integrity of the Ethernet connection. Ensure that the network cable and connectors are undamaged and securely connected. Check for any signs of physical damage or loose connections. Ensure that the network connectors are correctly plugged into their respective ports.

2. Ensure that the DHCP server (router) and any network switches in the network setup are signaling correct operation. Check the status indicators on these devices to ensure they are functioning properly. Look for any error lights or indicators that may indicate an issue with the network infrastructure.

[Interface]: connection speed goes to [100 Mbit / 10 Mbit]

The data transfer speed has undergone a modification. The reason behind the status of [10 Mbit] could be attributed to a faulty plug, a damaged cable, or improper handling of the network connector.

Recommended actions to rectify the [10 Mbit] status:

1. Verify the integrity of the network cable and network connector for any signs of damage, particularly in the case of an Ethernet connection.
2. Ensure that the network connectors are securely and correctly inserted.
3. Confirm that the DHCP server (router) and all network switches are functioning properly and indicating correct operation.

[Interface]: duplex mode goes to [Full / Half]

There has been a modification in the data transfer mode, specifically the duplex mode. The status currently reflects [Half]. This change could be attributed to a faulty plug, a damaged cable, or incorrect handling of the network connector.

To resolve the [Half] status, consider the following corrective measures:

1. Check the Ethernet connection and ensure that both the network cable and network connector are undamaged. Additionally, verify that the network connectors are correctly and securely plugged in.
2. Confirm that the DHCP server (router) and any network switches are indicating proper operation and functioning correctly.

[Interface]: Network load OK

The network load has returned to a normal range after being busy.

[User group]-Login via [protocol] locked

Following multiple unsuccessful login attempts, the system has temporarily blocked the login functionality for a specific duration. In this scenario, regular User login will be blocked for 15 minutes, while Grid Guard login will be blocked for 12 hours.

Recommended corrective measures:

1. Patiently wait until the specified duration has elapsed. For User login, the waiting time is 15 minutes, whereas for Grid Guard login, it is 12 hours.
2. Once the designated time period has passed, attempt to log in again.

WLAN module faulty

The WLAN module integrated in the inverter is defective.

Corrective measures:

Contact the Service.

No WLAN connection possible

The inverter does not have an active WLAN connection to the chosen network. To resolve this issue, follow the corrective measures provided below:

1. Verify that the SSID (network name), WLAN password, and encryption method have been entered accurately. The encryption method should correspond to the settings specified by your WLAN router or WLAN Access Point. Adjustments can be made on the router or Access Point’s configuration page.

2. Ensure that the WLAN router or WLAN Access Point is within range and functioning properly. Check for any indicators or signals that confirm its correct operation.

3. If you frequently encounter this message, consider enhancing the WLAN connection by incorporating a WLAN repeater. A WLAN repeater can extend the range and improve the strength of the wireless signal.

WLAN connection established

Connection to the selected WLAN network has been established.

WLAN connection lost

The inverter is currently disconnected from the selected network and has lost its WLAN connection. To address this issue, please follow the suggested corrective measures:

1. Confirm that the WLAN router or WLAN Access Point is still active and operational. Check if the device is powered on and functioning correctly.

2. Ensure that the inverter is within the range of the WLAN router or Access Point. Verify that there are no physical obstructions or interference causing signal disruptions.

3. If you frequently encounter this message, consider enhancing the WLAN connection by incorporating a WLAN repeater. A WLAN repeater can extend the range of the wireless signal and improve connectivity.

Webconnect enabled

The Webconnect function has been enabled.

Webconnect disabled

The Webconnect function has been disabled.

Active power limit AC frequency

To maintain grid stability, the inverter has automatically reduced its power output due to an excessively high power frequency. To address this issue, please follow the recommended corrective measures:

1. If feasible, check the power frequency and monitor the frequency of fluctuations. If you notice frequent fluctuations and encounter this message frequently, it is advisable to contact the grid operator. Request their approval to modify the operating parameters of the inverter in response to the fluctuations.

2. Once you have obtained approval from the grid operator, engage in a discussion with the service provider regarding the necessary changes to the operating parameters of the inverter. Collaborate with them to determine the appropriate adjustments required to ensure optimal performance without compromising grid stability.

Self-test start [xx]

The self-test is running.

Current disconnection limit for voltage increase protection [xxx] V

Preliminary result of the self-test

Current disconnection limit for voltage monitoring lower maximum threshold [xxx] V

Preliminary result of the self-test

Current disconnection limit for voltage monitoring middle minimum threshold [xxx] V

Preliminary result of the self-test

Current disconnection limit for frequency monitoring switchable maximum threshold |xxx| Hz

Preliminary result of the self-test

Current disconnection limit for frequency monitoring switchable minimum threshold [xxx] Hz

Preliminary result of the self-test

Current disconnection limit for frequency monitoring switchable minimum threshold [xxx] Hz

Preliminary result of the self-test

Current disconnection limit for frequency monitoring upper minimum threshold [xxx] Hz

Preliminary result of the self-test

Measured disconnection threshold for the running test point [xxx] [xx]

Preliminary result of the self-test

Measured disconnection threshold for the running test point [xxx] [xx]

Preliminary result of the self-test

Measured disconnection time for the running test point [xx] s

Preliminary result of the self-test

Set parameter

The parameter changes are being adopted.

Parameters set successfully

The parameter changes were successfully adopted.

Update file OK

The update file found is valid.

Update communication

The inverter is updating the communication component.

Update main CPU

The inverter is updating the inverter component.

Update completed

The inverter has successfully completed the update.

Installer code valid

The Grid Guard code entered is valid. As a result, the protected parameters have been unlocked, granting you the ability to adjust them. It’s important to note that these parameters will remain unlocked for a duration of ten feed-in hours, after which they will be automatically locked again.

During this unlocked period, feel free to make the necessary adjustments to the parameters as needed. However, be mindful that once the ten feed-in hours have elapsed, the parameters will be locked once more.

Grid parameters unchanged

Changing the grid parameters is not possible.