7.3 Commissioning the Inverter
Requirements:
☐ The inverter must be correctly mounted.
☐ The circuit breaker must be correctly rated.
☐ All cables must be 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.
☐ Unused openings for the Ethernet connection or the communication connection in the inverter
enclosure must be sealed tightly. The factory-mounted filler plugs can be used for that purpose.
Procedure:
1. Make sure that the AC cable is routed in such way that it cannot be damaged by the partition
in the lower enclosure lid.
2. Insert the lower enclosure lid from above and
fold it down. The screws must protrude from the
lower enclosure lid.
3. Tighten all six screws with an Allen key (AF 3) in
the order 1 to 6 (torque: 2.0 Nm). When
observing the prescribed order, you will avoid
that the lid is mounted asymmetrically and that
the enclosure is not correctly sealed.
4. Turn the DC load-break switch to the position
I
.
7 Commissioning
SMA Solar Technology AG
Operating Manual
STP20-25TL-BE-en-10
30
