SMA SUNNY TRIPOWER CORE1 - 7.2 Commissioning the Inverter

7 Commissioning
SMA Solar Technology AG
Operating manualSTP50-40-BE-en-1552
Procedure See
6. For PV systems in Italy or Dubai: Start the self-test. Section7.4, page55
7. Make further inverter settings as needed. Section8, page56
7.2 Commissioning the Inverter
Requirements:
☐ The AC circuit breaker must be correctly rated and mounted.
☐ The inverter must be correctly mounted.
☐ All cables must be correctly connected.
☐ Unused enclosure openings must be sealed tightly with sealing plugs.
Procedure:
1. Position the enclosure lid of the AC-Connection Unit
on the AC-Connection Unit and first tighten the
upper-left and lower-right screws, and then the
remaining screws crosswise (TX25, torque: 6Nm).
2
1
10x
10x
2. Position the enclosure lid of the DC-Connection Unit on the DC-Connection Unit and first
tighten the upper-left and lower-right screws, and then the remaining screws crosswise (TX25,
torque: 6Nm).
3. Turn the DC load-break switch of the inverter to
position I. To do so, first remove the padlock.
I
4. Switch on the AC circuit breaker.
☑ All three LEDs light up. The start-up phase begins.
☑ All three LEDs go out again after approximately 90seconds.
☑ Depending on the available power, the green LED pulses or is continuously illuminated.
The inverter is feeding in.
5. 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.
6. If the red LED lights up, an event has occurred. Find out which event has occurred and, if
necessary, initiate countermeasures.