SMA SB 3000TL - Manual (Page 34)

7.4 Commissioning the Inverter
Requirements:
☐ The inverter must be correctly mounted.
☐ The circuit breaker must be correctly rated and mounted.
☐ All cables must be completely and correctly connected.
☐ Unused DC inputs must be sealed using the corresponding DC connectors and sealing plugs.
☐ The country data set must be set correctly for the country or the purpose.
Procedure:
1. Insert the lower enclosure lid from above and
flip it down. The screws must protrude from the
lower enclosure lid.
2. Tighten all screws of the lower enclosure lid
using an Allen key (AF 3) in the order 1 to 6
(torque: 2 Nm ± 0.3 Nm).
Useful hint: If the screws fall out of the lower
enclosure lid, insert the short screw in the upper
middle hole and the five long screws in the other
holes.
3. If the ESS is available, plug it in. The ESS must be aligned parallel to and flush with the
enclosure.
4. Currents in the DC cabling after plugging in the ESS
After plugging in the ESS, DC currents may occur in the DC cabling, even when there is
no AC-side supply. This is not an error but normal behavior of the inverter when in
operation.
5. Attach the supplied warning labels so that they are clearly visible on the disconnection point
on the AC side.
6. Switch on the circuit breaker.
7. If an external DC load-break switch is installed, switch it on.
8. If the multifunction relay is used, connect the 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.
7 Commissioning SMA Solar Technology AG
Operating Manual SB30-50TL-21-BE-en-11 34