Epcom EPIG1K User Manual page 28

No Utility
Input Voltage
too High
Leakage current Fault
AC Under Corrective measures
Freq Check the grid connection and contact
the distribution grid operator if necessary.
tolerable range, but disturbances are still
displayed, contact the SYSCOM / EPCOM
Service line.
Utility is not available. This can occur if the
AC fuse is broken, No AC connections
from utility system, or broken AC cables.
Corrective measures
Island
Check the Utility system and the AC
connections of the PV Inverter
Check the AC fuses of the PV Inverter
Inverter and contact the system installer.
Input voltage higher than 450V. The
inverter could be damaged.
Corrective measures
PV Over
Disconnected PV modules immediately.
voltage
Check the configuration of the strings
for the PV modules in order to ensure the
maximum input voltage is lower than
450V.
Leakage current on ground conductor is
too high
Corrective measures
High Iac
especially the grounding cables. Ensure
Leakage
all the cables are connected properly.
Restart the PV Inverter.
Inverter and contact the system installer.
If the power frequency is within the
If failure remains, disconnect the PV
Check the AC Cables Connections,
If fault remains, disconnect the PV
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