SMA America, LLC
Commissioning
SB50US-80US-IA-en-36
SB50US-80US-IA-en-36
59
☑ If the AFCI self-test is successful: The Sunny Boy goes into "Waiting" mode
and the green LED flashes.The "Waiting" mode ends when solar
irradiation reaches a certain level. The green LED lights up permanently
and the Sunny Boy feeds into the power distribution grid.
or
☑ If the AFCI self-test fails: The yellow LED flashes. The Sunny Boy repeats
the AFCI self-test until it is successful. Observe section 7.2 ”The Sunny Boy
Does Not Resume Operation” (page 59).
7.2 The Sunny Boy Does Not Resume Operation
• Watch the display and the LEDs.
• Observe section 8 ”Displays and Messages” (page 62) and section 9 ”Troubleshooting”
(page 77).
No Operation Despite Sufficient Irradiation
1. Check whether the input voltage is sufficient. For the input voltage values, see 11 ”Technical
Data” (page 91).
2. If the input voltage is not sufficient, perform troubleshooting in the PV array and rectify the fault.
or
3. If the input voltage is sufficient, contact the SMA Service Line. Observe section 14 ”Contact”
(page 103).
If the feed-in to the power distribution grid was interrupted by a detected AC failure and
then resumed, the inverter waits 5 minutes before feeding in again.
For this, the input voltage must be greater than the start voltage of the Sunny Boy. For the
corresponding values, see section 11 ”Technical Data” (page 91).
If the inverter is not able to feed into the power distribution grid three times in a row, it waits
10 minutes before the next attempt.
DANGER
Danger to life due to high voltages in the PV system.
Risk of death or serious injury due to electric shock.
• Only qualified personnel may perform work on the PV array.
