CPS SCA Series, Installation And Operation Manual

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4. Fault mode is displayed when the inverter disconnects from the grid due
to a fault in the inverter or grid. Check the Fault log under Current Errors
and reference the “Troubleshooting” table in section 7 to determine the
cause of the error.
6.9 Grid-tied Power Generation
The CPS SCA50KTL-DO/US-480 and SCA60KTL-DO/US-480 series
inverters have an automatic grid-tied power generation process. It will check
constantly whether AC power grid meets the conditions for grid-tied power
generation, and test whether the PV array has adequate energy. After all
conditions are met, the inverter will enter Normal Operation mode and export
power to the grid. While generating power, the inverter can detect the power
grid at all times, supply current, matching voltage and frequency of the grid
and keep the photovoltaic array output at the maximum power point.
In case of any abnormality, the inverter will enter the protection program
immediately. In low light conditions when power generation is not enough to
keep the inverter in operation, the inverter will enter standby mode. When the
voltage of PV array changes, becomes stable and higher than the required
start value, the inverter will attempt to start grid-tied power generation again.
6.10 Firmware Upgrade
Update the firmware by using the USB flash:
1. Prepare a USB flash drive (Capacity less than 8G) and format the drive to
FAT32.
a. Insert the USB flash drive into a compter.
b. When the USB drive appears in the File Explorer Right click the drive
and select “Format…”. The File system should display “FAT32” as
default. If not, make this select
ion and click “start.”