Pic -1
Pic – 2
Boot up screen
1. Switch on the power grid circuit breaker, the screen shows
“Ver. 10”(Pic-1)
2. DSP initial boot up sequence completed as shown on
(Pic-2), notified by half a second “beep” sound. The system
is ready and enters idle mode.
Pic - 3
Pic - 4
Pic - 5
Pic - 6
System initial screen
1. Under initial mode, the system starts detecting the voltage
and frequency of the solar module and power grid. after 2
seconds,
2. The screen shows “Counter 300 sec.”, and countdown. If
the input voltage (190<Vpv<450V), output voltage
(106<Vac<132V) and frequency (59.3<Fac<60.5Hz) are all
within operating range, the system will initiate a 5-minute
countdown and prepare to start. (Pic-3)
3. If the voltage of solar module voltage is too low
(Vpv<190V), or AC voltage too low (Vac<106V), the screen
shows “Start waiting . . .” to indicate wrong voltage (Pic-4).
4. If the frequency is out of range, the screen shows “AC
FREQ error” to indicate wrong frequency. (Pic-5).
5. If the voltage of solar module is too high (Vpv>450V), or AC
voltage is too high (Vac>132V), the screen shows “Over
voltage” to indicate wrong voltage (Pic-6).
6. If the voltage of power grid and solar module are abnormal,
the system will remain at monitoring voltage initial mode as
shown on both (Pic-4) and (Pic-5). In the mean time all
buttons are disabled and not functional.
Status reports from LCD
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