Install Manual

7 Commissioning
SMA Solar Technology AG
Installation ManualSTP33-62-US-41-IA-en_es-1142
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
(53in-lb)).
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 (53in-lb)).
3. Turn the DC load-break switch of the inverter to
position I. To do so, first remove the padlock.
I
4. Turn the AC load-break switch of the inverter to position I.
5. 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.
6. 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.
7. If the red LED lights up, an event has occurred. Find out which event has occurred and, if
necessary, initiate countermeasures.
ENGLISH