Overload capacity
MOVITRAC® B frequency inverters permanently calculate the load on the inverter output stage (unit utilization). They can output the maximum possible power in every operating state.
The permitted continuous output current depends on:
- Ambient temperature
- Heat sink temperature
- Line voltage
- PWM frequency
If a PWM frequency > 4 kHz is set and P862/P863 PWM fix 1/2 is set to "Off", the inverter automatically reduces the PWM frequency in the event of a unit overload. If the inverter is subjected to a higher than permitted load, it issues the fault message F44 Unit utilization and switches off immediately.
Overload capacity at 40 °C
Overload capacity at 25 °C
Size | 0XS | 0S < 1.5 kW | 0S 1.5 kW | 0L | 1 | 2S | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|
T (min) | 20 | 20 | 8 | 8 | 3.5 | 4 | 5 | 4 | 9 | 5 |
