SolarEdge StorEdge SE7600A-USS Installation Manual page 104

To troubleshoot arc-fault failures:
The inverter continuously performs arc detection while producing power. If an electric arc occurred in
the PV system, the inverter detects it and stops producing power. The following error message is
displayed (numbered either 150 or 151):
E r r o r
A r c F a u l t
If this message is displayed:
1. Turn the inverter ON/OFF switch to OFF.
2. Check all PV strings for the correct open-circuit voltage:
Inspect all connections and cables between the power optimizers in the strings: Verify they are
l
connected properly by firmly pushing the plugs and verifying the connectors are locked.
Inspect all connections and cables between the PV modules and the power optimizers: Verify
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they are connected properly by firmly pushing the plugs and verifying the connectors are locked.
Verify that the strings are firmly attached to the S torEdge Connection Unit terminal blocks.
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3. Perform manual restart to resume system operation: Turn the inverter ON/OFF switch to OFF and
then ON. The inverter performs an arc detection self-test and starts normal operation.
To troubleshoot self-test failures:
If the self-test fails, the inverter displays an error message indicating that the arc detector hardware failed
during wake-up tests:
E r r o r
A F C I
s e l f - t e s t
The inverter transmits an error message to the monitoring platform, and continuously repeats the arc
detection self-test until it is successful.
If the problem persists, contact SolarEdge support.
SolarEdge-StorEdge Installation Guide MAN-01-00262-1.2
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D e t e c t e d
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Appendix D: Inverter Arc Detection and Interruption
103