Patent ID: 8519659

Claim:
A method of controlling an electric servo press for converting rotation of an electronically-controlled servomotor through an intermediation of a power transmission/conversion mechanism into vertical reciprocating movement of a slide so as to use the vertical reciprocating movement of the slide to perform press-working on a workpiece, comprising: executing rotation stop control for the servomotor according to a predetermined abrupt stop motion in response to an abrupt stop command; and causing a mechanical brake of the electric servo press to actually act to perform braking on an output of the servomotor, and stopping at least one of electronic control including at least the rotation stop control and drive power supply with respect to the servomotor under a condition that a predetermined time period elapses after start of the execution of the rotation stop control, wherein a time after elapse of the predetermined time period from the start of the execution of the rotation stop control is at or around a scheduled stop time at which the rotation of the servomotor is stopped by the execution of the rotation stop control in a case where the servomotor operates normally.