Servo control device

A servo control device that performs speed control or torque control for controlling speed or torque based on a speed command or a torque command by an analogue input voltage, and performs positional control for controlling a position of a servo motor based on feedback from the servo motor, the servo control device comprising:

• a command switching unit determining that a command voltage of a command by the analogue input voltage enters a dead zone of the command voltage which is registered in advance and determined as stopping, wherein,
• when detecting that the command voltage enters the dead zone, the command switching unit ceases the speed control or the torque control, and switches a control method of the servo motor for causing the servo motor to perform deceleration stop by the positional control by distribution processing of a movement command regarding an actual speed when the speed control or the torque control is ceased as an initial speed.