| 摘要 |
A pressure detector which detects a pressure of a material in a cylinder, and a pressure compensator which compares, in injection control, a preset value of an injection pressure with an actual measurement value of the injection pressure detected by the pressure detector, generates an injection speed command to a servo motor based on a comparison value, and varies a proportional gain based on a deviation of the actual measurement value of the injection pressure from the preset value of the injection pressure.
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