Page
18
of
26
Clenergy SPH Installation and Operation Manual
Fault condition
The display panel will show the Error Message during fault conditions. The
table shows the full list of messages with an explanation of the fault. See the
Troubleshooting section for further information on fault resolution.
Error Message
Explanation
No Utility
Grid voltage is not detected
PV Over Voltage
PV voltage is too high
DC Bus High
Internal DC bus voltage is too high
DC Bus Low
Internal DC bus voltage is too low
Over Temperature
Internal temperature is too high
Grid Fault
Grid voltage or frequency is out of range
Device Fault
Internal fault with inverter circuits
Isolation Fault
PV panel ground isolation problem
Impedance Fault
Grid impedance fault (or grid disconnected)
Ground I Fault
Grid output ground leakage current too high
Relay Failure
Grid output relay failure
DC INJ High
Grid DC injection too high
Ref 2.5V Fault
2.5V reference voltage internal circuit fault
DC Sensor Fault
Grid DC current sensor internal fault
GFCI Fault
Ground Fault Current Interrupt fault
Sci Fault
Internal Master/Slave communication fault
Consistent Fault
Internal Master/Slave value mismatch fault
CPU Ver Mismatch
Internal Master/Slave firmware incompatible
EEPROM Fault
Internal non-volatile memory fault
Grid V Mismatch
Internal Master/Slave grid voltage
mismatch
Grid F Mismatch
Internal Master/Slave grid frequency
mismatch
Grid Z Mismatch
Internal Master/Slave grid impedance
mismatch
GFCI Mismatch
Internal Master/Slave ground fault value
mismatch
DC Curr Mismatch
Internal Master/Slave grid DC current
mismatch
Typical display panel messages
The table explains typical display panel messages that occur depending on
the SPH inverter operating status and display panel mode.
