Technical data

the grid. The local limits
U1
and
U2
are listed in the inverter grid codes at the
www.danfoss.com/solar area, Approvals and Certifications.
Illustration 3.4: Grid Voltage Derating
Current Derating
At grid voltages lower than the nominal voltage, the inverter may derate to keep the output
current within the specifications.
Illustration 3.5: Current Derating
Temperature Derating
Derating due to temperature is a sign of excessive ambient temperature, a dirty heatsink, a
blocked fan or similar. Refer to the section
Maintenance
for advice.
3. Description of the Inverter
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