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6.3 Operation Mode
There are 4 operation modes: Logo/Start-up, Normal Operation, Standby
and Fault modes. See section 4.3 for details of these modes.
1. Logo/Start-up mode displays the Chint Power Systems logo when the
inverter is checking if conditions are met for connection after a manual
start-up of the inverter.
2. Normal Operation mode is the default indication interface for normal
operation. In this mode, the inverter is converting the DC power from
the array to AC power, feeding it continuously to the grid.
3. Standby mode is active when the output voltage and power of PV
modules do not meet the startup conditions or PV voltage and input
power are lower than the set value. The inverter will check automatically
whether it meets the startup conditions in this mode until it turns back to
Normal Operation mode.
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 Chapter 8 to
determine the cause of the error.
6.4 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
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