Overcurrent on DC side (PV1)
Fronius · Primo GEN24
¿Qué significa 502 ?
The Fronius Primo GEN24 208-240 inverter has detected an excessive current flowing from the PV1 string on the DC side. This indicates a potential short circuit within the PV1 array or an incorrect string configuration.
Causas comunes
- Overcurrent on the DC side (PV1).
- Short circuit on the PV array.
- Incorrect PV array sizing or configuration.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Disconnect the PV1 string using the DC disconnector and inspect all PV modules, wiring, and connectors for signs of damage or short circuits.
- 2
Measure the open-circuit voltage (Voc) and short-circuit current (Isc) of the PV1 string and compare them against expected values based on module specifications.
- 3
Verify that the PV1 string configuration (number of modules in series and parallel) is within the Fronius Primo GEN24 208-240 inverter's maximum current limits.
- 4
Check for any external DC combiner box or array wiring that might be causing a short circuit condition.
- 5
If all external checks pass, the issue may be internal to the inverter; contact Fronius service.