Dc Circuit Breaker; Buttons; Meaning Of The Light-Emitting Diodes (Led); Sd Memory Card - SMA SUNNY ISLAND 4548-US Operating Manual

7 Control Elements

7.2 DC Circuit Breaker

The DC circuit breaker is used to switch on/off as well as to disconnect the Sunny Island on the DC
side (see Section 9 "Switching On and Off", page 75).

7.3 Buttons

The table explains the functions of the buttons on the Sunny Island:
Button Function
cancels the selected function
answers NO
navigates one menu level higher
stops device (when held pressed down)
navigates up one list element, increases data value
navigates down one list element, decreases data value
selects function
selects value
confirms change
answers YES
navigates one menu level down
starts device (when held pressed down)
stops device (when held pressed down)

7.4 Meaning of the Light-Emitting Diodes (LED)

On the Sunny Island control panel, there are both a green (above) and a red (below) light emitting
diode (LED), the functions of which are described in the table below:
Green LED
–
On
–

7.5 SD Memory Card

The Sunny Island features an SD memory card which can be used for updating firmware and as a
service interface (see Section 11 "Data Storage on SD Memory Card", page 94).
68 SI4548-6048-US-BE-en-21
Red LED Operating state
– Off
– Operation or Standby
On Disturbance or error
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Operating Manual