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SMA Solar Technology AG 7 Initial Start-Up
Installation Manual SB13_21TL-IA-en-65 39
7.4 Commissioning the Inverter
Requirements:
The inverter is correctly mounted.
The miniature circuit-breaker is correctly rated and installed.
All cables are correctly connected.
Unused DC inputs are sealed with appropriate DC connectors and sealing plugs.
The country data set is configured according to the country or application.
If an ESS is in use, it is securely plugged in.
☐The inverter is closed.
Procedure:
1. Switch the miniature circuit-breaker on.
2. If an external DC switch-disconnector is installed, switch it on.
The start-up phase begins.
The green LED is lit and the display consecutively shows the device type or designation of
the inverter, the firmware version, and the configured country data set.
Green LED flashing
The DC input voltage is still too low, or the inverter is checking the electricity grid.
Once the DC input voltage is sufficiently high and the grid connection conditions are met,
the inverter starts operation.
Red LED on
The inverter has detected an earth fault or one of the varistors is defective.
Eliminate the error (see Section10.5 "Red LED Permanently On", page54).
Yellow LED flashing
There is probably a fault or disturbance present.
Eliminate the fault or disturbance (see Section10 "Troubleshooting", page45).
3. If the inverter is being commissioned in Italy, start the self-test (see Section7.5 "For Italy Only:
Starting the Self-test", page40)
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