SMA SB 6000TL‑US Installation - Manual (Page 45)

SMA America, LLC 6 Commissioning
Installation Manual SB6-11TL-US-IA-en-13 45
6.2 The Sunny Boy Does Not Resume Operation
• Watch the display and the LEDs.
• Refer to Section 7 "Displays and Messages", page 47 and the user manual.
No operation despite sufficient solar irradiation
1. Check whether the input voltage is sufficient. For the input voltage values, see Section
11 "Technical Data", page 70.
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 90.
The Message "Error AFCI" Is Displayed
An electric arc occurred in the PV system. The yellow LED is permanently lit. The AFCI has tripped and
the Sunny Boy is in permanent shutdown.
1. Turn the DC Disconnect to position "0".
☑ Wait for the display to go out.
2. Perform troubleshooting in the PV system:
Check all PV strings for the correct open-circuit voltage.
High voltages in the PV system
Risk of death or serious injury due to electric shock.
• Only electrically skilled persons may perform work on the PV array.
Danger of fire from electric arc
• Only test the AFCI for false tripping in the order described below.
• Do not deactivate the AFCI permanently.
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