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8. PROTECTIVE fUNCTIONS
a) Undervoltage protection
The inverter emits an alarm sound when the input voltage drops below a specific value:
12 v inverter: voltage drops below 10.5 v/DC (tolerance ±0.5 v/DC)
24 v inverter: voltage drops below 21.0 v/DC (tolerance ±0.5 v/DC)
If the input voltage drops further, the inverter and the connected consumer are switched
off. This protects, e.g., a car battery that is used to operate the inverter, from harmful deep
discharge.
12 v inverter: voltage drops below 10.0 v/DC (tolerance ±0.5 v/DC)
24 v inverter: voltage drops below 20.0 v/DC (tolerance ±0.5 v/DC)
The "Fault" LED will light up if the inverter recognises undervoltage. In this case, switch
off the inverter via the on/off switch.
b) Overvoltage protection
The inverter switches itself and the connected consumer off once the input voltage is too high.
12 v inverter: voltage rises over 15.0 v/DC (tolerance ±0.5 v/DC).
24 v inverter: voltage rises over 30.0 v/DC (tolerance ±0.5 v/DC).
The "Fault" LED will light up if the inverter recognises undervoltage. In this case, switch
off the inverter via the on/off switch. Check the voltage source.
c) Overload protection
The inverter switches itself off temporarily if the consumer connected to the output draws too
much power. If the power consumption is reduced, the inverter will switch on again automati-
cally.
The "Fault" LED will light up at overload. Switch the inverter off via the on/off switch and
remove the cause of the overload.
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