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System Manual V2 – MOVITRAC® B
6
Overload capacity
Project Planning
6.6
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 status.
The permitted continuous output current depends on:
•
Ambient temperature
•
Heat sink temperature
•
Mains 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. The inverter
responds to a higher than permitted load by issuing the "F44 Unit utilization" error
message and an immediate switch-off.
Overload capacity at 40 °C (104 °F)
Overload capacity at 25 °C (77 °F)
Size
0XS
0S < 1.5 kW
0S 1.5 kW
0L
1
2S
2
3
4
T (min)
20
20
8
8
3.5
4
5
4
9
Summary of Contents for MOVITRAC MC07B0037-2A3-4-00
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