The force generated by the motor beyond the saturation point in the non-linear area of the motor force constant. The actual value of the motor force constant at ultimate force is 26% less than the catalog value. This is only applicable for iron core and torque motors. Efficiency of transfer of current to force is lower and causes the coils to heat up faster. For ultimate force the temperature increase is 10 or 20 K/s depending on the motor series.
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Mike Rolink and Stefan Jansen
Application Engineers
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