Linear motor system

A linear motor system comprising:

• a stator including a plurality of coils that are arranged in a line;
• a mover including a permanent magnet disposed opposite to the plurality of coils;
• a switcher that performs:
• (i) selecting, from among the plurality of coils, one or more coils each including a region that extends across opposite ends in an arrangement direction and faces the permanent magnet as one or more power supply target coils that serve as power supply targets;
• and
• (ii) switching the one or more power supply target coils in response to a movement of the permanent magnet;
• and
• a control device that supplies power to the one or more power supply target coils by using a total mass calculated based on a mass of the permanent magnet,
• wherein the control device includes:
• an acquirer that acquires a total number of the one or more power supply target coils;
• a speed control unit that calculates a post-division total mass by dividing the total mass by the total number of the one or more power supply target coils, and generates a torque instruction by using the post-division total mass;
• and
• a current control unit that supplies power to the one or more power supply target coils based on the torque instruction generated by the speed control unit.