SMA STP 15000TL Service Manual - Manual (Page 39)

8. Switch on the circuit breaker of all three line conductors.
9. If the multifunction relay is used, switch on any supply voltage to the load.
☑ All three LEDs start to glow and the start-up phase begins. The start-up phase may take several
minutes.
☑ The green LED is glowing and the display alternates between the device type, the firmware
version, the serial number or designation of the inverter, the NetID, the configured country
data set and the display language.
✖ Green LED is flashing?
Possible cause of error: the DC input voltage is still too low or the inverter is monitoring the
utility grid.
• Once the DC input voltage is sufficiently high and the grid connection conditions are met,
the inverter will start operation.
✖ The red LED is glowing and an error message and event number appear in the display?
An error has occurred.
• Rectify the error (see Section 4 "Troubleshooting", page 10).
12 Recommissioning the Inverter SMA Solar Technology AG
Service Manual 39 STP15-17TL-10-SG-en-10