Patent ID: 7791297

Claim:
A method for controlling a motor ( 2 ) for driving a disk-shaped tool ( 4 ) of a power tool ( 1 ) and to which a motor voltage in the amount of a nominal value is applied in an “on” position of a motor switch ( 6 ), comprising the first step of determining an actual motor current (IM) applied to the motor ( 2 ) and comparing it to a first predetermined threshold (GW 1 ); and a second step of automatically triggering a control process for protecting the motor ( 2 ) from overloading when an overload condition, which is defined in that the first predetermined threshold (GW 1 ) is exceeded beyond a first predetermined limiting time period (grDt 1 ), is met, the control process including reducing the motor voltage applied to the motor ( 2 ) by a magnitude that can be perceived by a user as a choke value; and further steps of counting overload events during which the overload conditions are met when they follow one another within a predetermined limiting time period, and turning the motor ( 2 ) off after a predetermined quantity of counted overload events.