FAQ: What is the ambient temperature derating (L8-12 setting)?
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The output current capacity and the overload capabilities of the inverter depend on the ambient temperature. The higher the ambient temperature the lower is the maximum output current because the heat dissipation becomes more difficult.
The overload protection function is active only when the current is above the maximum continuous output current level (112% of inverter rated current). At ambient temperatures higher than 45°C (40°C for IP20) this level will be lowered.
The ambient temperature can be set in parameter L8-12. The setting range is 45°C to 60°C.
Because the inverter has no IP00/20 detection the set value for L8-12 must be 5° higher than the real ambient temperature at IP20 units.
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