Huawei FusionSolar Alarm ID 2068 – Meaning, Causes &... | solardiagnostics.org

Technical Background:

Alarm ID 2068 indicates that the inverter has detected a frequency out of range condition. Inverters are designed to synchronize with the Utility Grid frequency, which typically operates between 59.3 Hz and 60.5 Hz. If the inverter senses a frequency outside this range, it will trigger a fault to protect itself and the connected array. This can occur due to fluctuations in the utility frequency, internal component failures, or issues with the inverter's sensing capabilities. The inverter continuously monitors grid conditions to ensure safe operation, and any deviation triggers an alarm to prevent potential damage.

Symptoms:

Upon encountering Alarm ID 2068 on the Huawei FusionSolar inverter, users may observe the following: the inverter's LED indicator may flash or display a specific error code. In addition, the monitoring app will likely show an alert regarding the fault, and there may be a noticeable drop in energy production, indicating that the inverter is not operating optimally.

Possible Causes:

Inverter firmware issues affecting frequency detection.
Utility Grid frequency fluctuations beyond acceptable limits.
Internal component failure within the inverter's frequency sensing circuit.
Poor connections or damaged wiring in the AC output path leading to incorrect frequency readings.
External electromagnetic interference impacting the inverter's performance.
Incorrectly configured grid settings in the inverter's software.

Solution:

1

Check the inverter's firmware version and update it if necessary using the manufacturer's guidelines.
2

Measure the grid frequency using a multimeter at the AC output terminals to verify if it is within the acceptable range (typically 59.3 Hz to 60.5 Hz).
3

Inspect all AC connections, including the junction box and breaker, for signs of corrosion, looseness, or damage.
4

Review the inverter's grid settings in the monitoring app and ensure they align with local utility requirements.
5

If necessary, disconnect the inverter using an MC4 disconnect tool and perform a visual inspection of the wiring for any signs of wear or damage.
6

If external interference is suspected, relocate the inverter or its wiring away from potential sources of electromagnetic interference.
7

Restart the inverter after performing all checks and adjustments to see if the fault clears.

Safety Warning:

Always consult a licensed electrician or certified solar installer when troubleshooting or performing maintenance on your solar inverter to ensure safety and compliance with local electrical codes.

Prevention:

To avoid future occurrences of Alarm ID 2068, regularly maintain the inverter by checking connections and ensuring firmware is up to date. Schedule periodic system inspections to identify potential issues with the grid connection and verify that the inverter settings comply with local utility requirements. Keeping the inverter and associated wiring clear of external interference sources is also crucial.

Frequently Asked Questions

•What does Alarm ID 2068 indicate?

Alarm ID 2068 indicates that the frequency is out of range, which can affect system performance. It's crucial to address this alarm promptly to ensure optimal operation.

•How can I troubleshoot frequency issues?

To troubleshoot frequency issues, check the inverter settings and ensure they align with the grid specifications. Additionally, inspect the connections and any external factors that may affect frequency stability.

Huawei FusionSolar Alarm ID 2068 – Meaning, Causes & Solution

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Frequently Asked Questions

•What does Alarm ID 2068 indicate?

•How can I troubleshoot frequency issues?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention: