40 UM0012_ASW 5-10k Series_EN_V03_0522
7.4 Start-Up
After safety code check, switch on the miniature circuit-breaker. Once the DC
input voltage is sufficiently high and the grid-connection conditions are met,
the inverter will start operation automatically. Usually, there are three states
during operation:
Waiting:
When the initial voltage of the strings is greater than the minimum
DC input voltage but lower than the start-up DC input voltage, the inverter is
waiting for sufficient DC input voltage and cannot feed power into the grid.
Checking:
When the initial voltage of the strings exceeds the start-up DC
input voltage, the inverter will check feeding conditions at once. If there is
anything wrong during checking, the inverter will switch to the “Fault” mode.
Normal:
After checking, the inverter will switch to “Normal” state and feed
power into the grid.
During periods of low radiation, the inverter may continuously start up and
shut down. This is due to insufficient power generated by the PV array.
If this fault occurs often, please call service.
Quick Troubleshooting
If the inverter is in "Fault" mode, refer to Section 11 "
Troubleshooting
".