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 Section10.5 "Red LED Permanently On", page54).
✖ Yellow LED flashing
There is probably a fault or disturbance present.
• Eliminate the fault or disturbance (see Section10 "Troubleshooting", page45).
3. If the inverter is being commissioned in Italy, start the self-test (see Section7.5 "For Italy Only:
Starting the Self-test", page40)
