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Installation instructions sonnenBackup-Box
3.2.2 Inverters of the Backup-Box
NOTICE
Incorrect switch position on the inverters
Damage to the inverters of the Backup-Box!
The correct switch position was marked by a label.
Do not change the switch position of the rotary switches on the two invert-
ers of the Backup-Box.
The two inverters within the Backup-Box each have a rotary switch and an LED light.
Rotary switch
It is essential for the function of the Backup-Box that the rotary switches on both inverters
are set correctly. The rotary switches have been factory set in the correct position and this
position has been marked by a sticker.
Do not change the switch position on the inverters.
• Master inverter: STANDBY area.
• Slave inverter: OFF.
LED light
The LED light indicates the current state of the inverter:
LED colour
Status
Meaning
-
Off
Power supply switched off
green
Permanently illuminated
Consumer device switched on
Blinking slowly
Standby operation, no consumer device was recog-
nized
red
Blinking slowly
System error; please contact the sonnen Service
Blinking quickly
Overcurrent
Permanently illuminated
Overheating
red-green
Blinking slowly
Battery undervoltage or low charge state
Blinking quickly
Battery overvoltage
