Learn about Solis OV-BUS overvoltage issues caused by inverter inductance connection problems and how to resolve them.
Overvoltage in Solis inverters can be caused by improper inductance connections, leading to electrical imbalances. It's crucial to check all connections for integrity.
To fix inductance connection issues, ensure all wiring is correctly installed and secure. Consult the inverter manual for specific connection guidelines.
The Solis OV-BUS overvoltage error typically occurs when the inverter detects input voltages that exceed its rated capacity, which can be influenced by several factors. The inverter employs a range of protective measures, including insulation resistance measurement (RISO) and ground fault detection, to safeguard against electrical anomalies. If the inductance connections are compromised, they can lead to voltage spikes that trigger the inverter's protective mechanisms. Furthermore, fluctuations in grid frequency or voltage can cause the inverter to enter a protective shutdown mode, preventing damage to internal components and ensuring safety.
Homeowners may observe persistent LED fault indicators on the inverter, often flashing red or amber, indicating an overvoltage condition. Additionally, the monitoring app may display alerts regarding production drops or system shutdowns. A significant reduction in energy output may also be noted, with daily production figures falling below expected levels.
Always consult a licensed electrician or certified solar installer when working on solar inverter systems to ensure compliance with local codes and safety protocols.
To prevent future occurrences of the OV-BUS overvoltage fault, ensure regular inspection and maintenance of all electrical connections, particularly inductance and grounding systems. Utilize surge protection devices to manage voltage spikes from the utility grid. Additionally, maintain proper string configuration to avoid exceeding the inverter's voltage limits, and implement routine performance monitoring to detect anomalies early.