BBV28581 05/2010 93
Configuration Mode - Complete menu (FULL)
Motor thermal protection

Function:

Thermal protection by calculating the I2t.
Naturally-cooled motors:
The tripping curves depend on the motor frequency.
Force-cooled motors:
Only the 50 Hz tripping curve needs to be considered, regardless of the motor frequency.
Trip time in seconds
Motor current/ItH
CAUTION
RISK OF DAMAGE TO THE MOTOR
The use of external overload protection is required under the following conditions:
Repowering up the product since there is no motor thermal state memory.
Running multiple motors
Running motors rated at less than 0.2 times the nominal drive current
Using motor switching
Failure to follow these instructions can result in equipment damage
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