Abstract: Provided is a technique that facilitates control of a navigation light which uses light-emitting diodes for a light source. This navigation light control system is provided with: a navigation light that has a light source for which a light-emitting diode is used; a power supply unit that supplies power to the navigation light; and a control device that controls lighting of the navigation light, wherein the control device is provided with a light source circuit that supplies the power received from the power supply unit to the light source, and a determination unit that determines failure of the light source on the basis of the value of the current flowing through a resistor connected to the light source circuit.

Abstract: Provided is a technique that facilitates control of a navigation light which uses light-emitting diodes for a light source. This navigation light control system is provided with: a navigation light that has a light source for which a light-emitting diode is used; a power supply unit that supplies power to the navigation light; and a control device that controls lighting of the navigation light, wherein the control device is provided with a light source circuit that supplies the power received from the power supply unit to the light source, and a determination unit that determines failure of the light source on the basis of the value of the current flowing through a resistor connected to the light source circuit.

Abstract: Module substrates each having the functions of input, power supply, and output/communication corresponding to the required model are attached to a base substrate having shared bus wiring. Thus, a main CPU of an input module can discriminate the respective module substrates to perform the control operation corresponding to the model, thereby sharing the module substrates among different models.

Abstract: A controller controls a physical variable such as temperature of a controlled system. A variable calculator calculates and output a manipulated variable on the controlled system based on of a target value such as a target temperature and a feedback value such as the measured temperature of the controlled system. A dead-time compensator provides a dead-time compensated output using a model simulating the controlled system having a dead time and an idealized model having no dead time, based on the manipulated variable outputted from the variable calculator to carry out an ordinary control and a dead-time compensated control. A switch functions to select the dead-time compensated control by providing a dead-time compensated output to the variable calculator or an ordinary control providing no dead-time compensated output to the variable calculator. The dead-time compensated control is carried out at least during set point response of the controller.

Abstract: Module substrates each having the functions of input, power supply, and output/communication corresponding to the required model are attached to a base substrate having shared bus wiring. Thus, a main CPU of an input module can discriminate the respective module substrates to perform the control operation corresponding to the model, thereby sharing the module substrates among different models.

Abstract: A controller controls a physical variable such as temperature of a controlled system. A variable calculator calculates and output a manipulated variable on the controlled system based on of a target value such as a target temperature and a feedback value such as the measured temperature of the controlled system. A dead-time compensator provides a dead-time compensated output using a model simulating the controlled system having a dead time and an idealized model having no dead time, based on the manipulated variable outputted from the variable calculator to carry out an ordinary control and a dead-time compensated control. A switch functions to select the dead-time compensated control by providing a dead-time compensated output to the variable calculator or an ordinary control providing no dead-time compensated output to the variable calculator. The dead-time compensated control is carried out at least during set point response of the controller.