Injection molding machine

An injection molding machine comprising:

• a first servomotor;
• a first servo amplifier that supplies the first servomotor with power;
• and
• a control device that controls the first servo amplifier to execute a molding cycle, wherein
• the first servo amplifier includes a first switching element and a second switching element,
• the molding cycle includes a first period in which the first servomotor is rotated and a second period in which the first servomotor is not rotated,
• the first servomotor is rotatable by being controlled under first control and stoppable by being controlled under second control or third control,
• the first control is control to rotate the first servomotor by performing control to turn on the first switching element and the second switching element in different phases,
• the third control is control to stop rotation of the first servomotor by performing control to turn on the first switching element and the second switching element in a same phase,
• the second control is control to stop the rotation of the first servomotor by performing control to turn off the first switching element and the second switching element, and
• the control device
• executes the first control in the first period, and
• executes the second control or the third control in the second period.