Omron VARISPEED L7

9-6
9
Derating
 Ambient Temperature Derating
If the inverter ambient temperature is higher than 45°C, an output current derating like shown in Fig 9.1 must
be considered.
Fig 9.1 Ambient Temperature Derating
 Carrier Frequency Derating
If the carrier frequency is set higher than the factory default value, an output current derating like shown in
Fig 9.2 must be considered
Fig 9.2 Carrier Frequency Derating
0
20
40
60
80
10 0
0 10 2030405060
Temperature (°C)
Output Current in % of the
Rated Current
125%
100%
75%
0
58 15(kHz)
Carrier
frequency
200V Class 22kW or less
400V Class 22kW or less
200V Class 30 to 55kW
400V Class 30 to 55kW
2
10
100% Rated Current
3 minutes 50% ED
Output current (%)