METHOD FOR CONTROLLING MOTOR DRIVING BY PLC

摘要

To provide a method for controlling motor driving of PLC capable of maintaining a motor axis-based driving time point in the same way according to an axis-based driving command upon control of a motor performing multi-axis motion to thereby prevent control target equipment connected to the motor from moving to an improper path.SOLUTION: A method for controlling driving of a motor by a PLC includes: upon an initiation of an N-th position determination control period, stopping a scan program being executed; receiving one or more motor driving commands for one or more axes during a preset position control processing region; calculating one or more axis-based motor movement amounts corresponding to the one or more motor driving commands for the one or more axes during a preset position control calculation region; resuming execution of the scan program; and upon an initiation of an (N+1)-th position determination control period, driving the motor based on the one or more axis-based motor movement amounts calculated during the position control calculation region.SELECTED DRAWING: Figure 6