Trouble Shooting; Fault Code Description And Solution; Fault Display Description; Fault And Abnormal Code Description - DAYLIFF SUNVERTER 3 Installation & Operating Manual

5. TROUBLE SHOOTING

5.1 Fault Code Description and Solution

Sv3 solar pumping inverter is provided with full protection. When a system fault occurs,
the inverter stops the pump for a certain period of time before restarting.
When protection occurs, the inverter screen will automatically switch to the fault display
page.

5.2 Fault Display Description

LCD Display

5.3 Fault and Abnormal Code Description

Warning
Code Description
Code
Solar radiation is too
Too Dark
weak
Code
Flashing display of fault code.
Alert
Display of abnormal code.
Abnormal
The restart delay countdown time after the fault or protection is cleared.
Delay
When the count down time reaches 0, the fault display page will
disappear automatically and the running data are displayed.
Displays "Fault"when fault or protection occurs.
Status
Displays "Starting"when the fault or protection is cleared.
Displays "Reset" when maximum failures are reached. To reset user may
cutoff the power supply or press the "RESET" key combination to reset. If
the fault still exists after resetting, please contact the manufacturer for
help.
Possible Reason
Very low PV input voltage
Very weak PV input power
Description
Counter Measures
Solar light is too weak, the PV input
voltage is lower than the startup voltage,
allow the voltage on solar array to reach
the trigger voltage
Pr.2 value is set too high, modify the
value according to measured open
circuit value of solar array at site or
about 0.85 of rated VoC
The light is weak, the operating
frequency is lower than the weak light
f r e q u e n c y, a n d i t w i l l r e s t a r t
automatically after the weak light reset
delay time expires.
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