7 Commissioning
SMA Solar Technology AG
Operating manualSTP15-25TL-30-BE-en-1744
8. Switch on the circuit breaker of all three line conductors.
☑ 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. Feed-in operation begins.
9. If the green LED is still flashing, the conditions for activating feed-in operation are not yet met.
As soon as the conditions for feed-in operation are met, the inverter starts with feed-in
operation and, depending on the available power, the green LED will light up continuously or
it will pulse.
10. If the red LED lights up, an event has occurred. Find out which event has occurred and, if
necessary, initiate countermeasures.
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