Sharp JH-1600E Specifications download pdf (Page 22)

Islanding Protection

The inverter will shut down when the power from the grid becomes abnormal or fails. This will provide safety to the

people working on the power lines and protect the home circuits and solar power inverter.

The solar power inverter continually monitors the voltage and frequency of the grid through an internal control circuit. It

will detect an abnormal condition or failure of the grid. Abnormal conditions include AC overvoltage, AC undervoltage,

AC overfrequency, and AC underfrequency. The solar power inverter shuts down and disconnects from the grid should

any of the above conditions occur.

Per AS 4777, the solar power inverter will stop within 2 seconds should the grid voltage be lower than 210 V

AC or higher

than 255 V

AC. The solar power inverter will stop within 1 second should the frequency of the grid be lower than 47 Hz or

higher than 53 Hz.

The solar power inverter incorporates two functions to detect and prevent islanding operation. This is important when

the output of the inverter and the power consumption of the home are well balanced and the voltage or the frequency of

the grid does not change during a power failure, resulting in the power failure not detected. If this occurs, a passive

system that detects a jumping voltage phase and an active system that detects frequency shift that stops the inverter

operation within 2 seconds.

The solar power inverter display indicates utility abnormal to indicate a power failure.

Error / Fault Code List

Type Code Items

Utility abnormal F-00 Utility over-voltage

F-01 Utility under-voltage

F-02 Utility frequency over

F-03 Utility frequency under

F-06 Anti-islanding (frequency over)

F-07 Anti-islanding (frequency under)

F-08 Miss utility synchronal lock signal

F-09 Freq. abnormal (50<->60 Hz)

PV array abnormal PV array under voltage (<60 V)

P-11 PV array over voltage (>320 V)

Inverter abnormal E15 d-15 Relay sticking

E16 d-16 Communication error

E17 d-17 Aux-power abnormal

E18 Ground fault

d-20 Temperature sensor broken

E21 d-21 Output over current

E22 d-22 DC offset over rating

E23 d-23 Fin high temperature

E26 d-26 DC/DC converter abnormal

E27 d-27 Relay open

E28 DC bus voltage abnormal

EEPROM d-40 EEPROM abnormal

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Sharp JH-1600E Specifications Page 22