Copyright CPS America Co., Ltd. Page 69
PV Inverter and try again. If fault remains, contact the system
installer to check the grid voltage and cable connections between
PV Inverter and Utility system.
If detected grid voltage is out of permissible range, contact the
system installer to check the feed-in AC voltage and contact the
utility operator for further action.
C) No Utility
Conditions: Utility is not available. This can occur if the AC fuse is broken,
No AC connections from utility system, or broken AC cables.
Corrective Actions:
Check the Utility system and the AC connections of the PV Inverter
Check the AC fuses of the PV Inverter
If failure remains, disconnect the PV Inverter and contact the system
installer.
D) PV Over Voltage
Conditions: DC voltage fed by the PV module is higher than permissible
range, 600Vdc.
Corrective Actions:
Disconnected PV modules immediately.
Check the configuration of the strings for the PV modules and
ensure the maximum input voltage is lower than 600V.
E) Ground I Fault
Conditions: Leakage current on ground conductor is too high.
Corrective Actions:
Check the AC Cables Connections, especially the grounding cables.
Ensure all the cables are connected properly.
Restart the PV Inverter.
If fault remains, disconnect the PV Inverter and contact the system
installer.
