Page
19
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Clenergy SPH Installation and Operation Manual
Operating conditions
Display
message
Description
Normal working status
Power off
No display
PV inverter is totally shutdown, PV
voltage <=90V.
Standby
INV Standby 90V< Input voltage < =100V.
Initialization & waiting
INV Waiting
PV input voltage range 100V to
150V during start-up. Inverter is
waiting for feeding to grid.
Check grid
Testing
When PV voltage> 150V, inverter is
checking grid conditions.
Normal operation, MPPT
Working Mode Inverter is supplying power to grid.
Monitoring parameters
Grid output power
O/P
Watt=xxxxW
The grid output power in Watts.
Accumulated energy information
xxxxx KWh
Total energy which has been
supplied to the grid since the
inverter was installed.
Grid voltage
GRID
VOLT=xxx.xV Grid (rms) voltage in Volts.
Grid frequency
GRID
FREQ=xx.xHz
Grid frequency in Hertz.
Grid output current
O/P
CUR=xx.xA
Grid (rms) current in Amps.
PV panel voltage
PV
VOLT=xxx.xV PV panel DC voltage in Volts.
System fault
Isolation failure
Isolation Fault Earth fault of the PV-panels or
failure of surge voltage protection.
GFCI
(Ground Fault Current
Interrupter) active
Ground I Fault Current on the ground conductor is
too high.
Grid failure
Grid Fault
Grid measured data is beyond the
specification (voltage & frequency).
Abnormal Grid Impedance
Impedance
Fault
1.
Grid impedance higher than limit.
2.
Grid impedance change is faster
than limit.
No grid utility voltage
No Utility
1.
Inverter is not connected to grid
2.
Grid voltage is not present.
DC-Input voltage too high
PV Over
Voltage
DC-Input voltage is higher than the
maximum limit (500VDC).
Inverter failure
Master/Slave CPU Consistency
failure
Consistent
Fault or
Mismatch
The readings of 2 microprocessors
are not consistent. It is probably
caused by CPU and/or other circuit
malfunction.
Bus failure
DC Bus High
DC Bus Low
DC-Bus voltage too high or too low.
Device failure
Device Fault
The device is unable to return to
normal status.
Temperature too high
Over
The internal temperature is higher
