
4 Product Overview
SMA Solar Technology AG
Installation Manual
SBxx-1SP-US-40-IA-xx-15
20
event will be reported at the latest one day after the detection of the defective string. This prevents
partial failures of the PV array from being undetected for a long time and which will result in yield
losses. The self-learning string failure detections automatically identifies if a string has been repaired
and resets the event. If the defective string should no longer be connected, the event must be reset
manually.
Arc-Fault Circuit Interrupter (AFCI)
In accordance with the
National Electrical Code
®
, the inverter has a system for DC arc fault
detection and interruption. The arc-fault circuit interrupter is listed in accordance with UL 1699B Ed.
1. A detected electric arc causes the inverter to interrupt feed-in operation: In order to restart feed-in
operation, the feed-in operation must be activated manually. If the installation conditions allow it,
you can deactivate the arc-fault circuit interrupter.
SMA Smart Connected
SMA Smart Connected is the free monitoring of the inverter via the SMA Sunny Portal. Thanks to
SMA Smart Connected, the PV system operator and qualified person will be informed automatically
and proactively about inverter events that occur.
SMA Smart Connected is activated during registration in Sunny Portal. In order to use SMA Smart
Connected, it is necessary that the inverter is permanently connected to Sunny Portal and the data
of the PV system operator and qualified person is stored in Sunny Portal and up-to-date.
4.4
LED Signals
The LEDs indicate the operating state of the inverter.
LED signal
Explanation
The green LED is flashing
(two seconds on and
two seconds off)
Waiting for feed-in conditions
The conditions for feed-in operation are not yet met. As soon as the
conditions are met, the inverter will start feed-in operation.
The green LED is flashing:
1.5 s on and 0.5 s off
Secure power supply operation
The secure power supply operation is activated and the inverter sup-
plies the outlet with current from the PV system.
The green LED flashes
quickly
Update of central processing unit
The central processing unit of the inverter is being updated.
The green LED is glowing
Feed-in operation
The inverter feeds in with a power of at least 90%.
The green LED is pulsing
Feed-in operation
The inverter is equipped with a dynamic power display via the green
LED. Depending on the power, the green LED pulses fast or slow. If
necessary, you can switch off the dynamic power display via the
green LED.
The green LED is off
The inverter is not feeding into the utility grid.
ENGLISH
Содержание SB3.0-1SP-US-40
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