SMA Solar Technology AG
8 Commissioning
Installation Manual
STP5-9TL-IA-en-10
61
5. Securely plug in the ESS.
6. Switch on the miniature circuit-breaker.
7. If a multi-function relay is used, switch on the load supply voltage.
☑ The start-up phase begins. All three LEDs are lit or flashing.
☑ The green LED is lit and the display alternates automatically between the firmware version,
the serial number of the inverter, the NetID, IP address, subnet mask, the configured country
data set and display language.
✖ Is the green LED flashing?
Possible cause of the error: The DC input voltage is still too low.
• If the DC input voltage is sufficiently high, the inverter starts to operate.
✖ The red LED is lit and an error message and event number appear in the display?
• Eliminate the error (see Section 11 "Troubleshooting", page 68).