SMA 20000TL User Manual
Page 35
6. Fasten the two screws using an Allen key (AF 3)
(torque: 2 Nm ± 0.2 Nm).
7. Turn the DC load-break switch to the position I.
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.
✖ The 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?
• Rectify the error (see the service manual at ).
7 Commissioning
SMA Solar Technology AG
Operating Manual
35
STP20-25TL-BE-en-12