Programming guidelines
292
ACOPOSinverter P84 User's Manual 2.10
2.8.12.5 Thermal motor protection
Function:
Thermal protection through calculation of I
2
t.
Note:
The motor thermal state is saved when the inverter is switched off. The shutdown time is used to
calculate the thermal state the next time the inverter is switched on.
•
Self-cooling motors:
The tripping curves depend on the motor frequency.
•
Force-cooled motors:
Regardless of motor frequency, only the 50 Hz tripping curve needs to be observed.
Trip time in seconds
Motor current/ ItH
0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6
Содержание ACOPOSinverter P84
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