Controller of injection molding machine and method of controlling injection molding machine

A method of controlling an injection molding machine in which the injection molding machine includes an injection member provided inside a cylinder to heat a molding material and an injection drive source to fill the molding material into a mold device by moving the injection member forward,

• the method comprising:
• invoking a controller comprising processing circuitry configured to
• limit a forward movement of the injection member such that a forward velocity or a forward acceleration of the injection member is limited even when an actual value of a filling pressure acting on the molding material from the injection member is smaller than a set value and a difference between the actual value and the set value is so large as to cause a rapid forward movement of the injection member, in a pressure-holding process in which the injection drive source is controlled to increase the forward velocity as the difference between the actual value and the set value increases so that the actual value becomes the set value, the pressure-holding process being performed after a filling process;
• and
• determine an appropriateness of a setting to be used in limiting the forward movement of the injection member based on information of a sensor provided in the mold device.