A robot system includes a robot arm driven by an electric motor and a vehicle that is movable and supports the robot arm. A control method includes (a) moving the vehicle to a work station of a first type and (b) driving the robot arm in the work station of the first type. The (a) executes a first operation mode for, in a part of the movement to the work station of the first type, moving the vehicle in a state in which electric power is not supplied to the electric motor, starting supply of the electric power to the electric motor during the movement of the vehicle in the state in which the electric power is not supplied to the electric motor, and arranging the vehicle in the work station of the first type in a state in which the electric power is supplied to the electric motor.

A device for a machine tool, which is detachable from an attachment part of the machine tool, includes: a data generating unit that generates data; a first communication unit that transmits the data generated by the data generating unit to an information processing device; a first control unit that activates and controls the first communication unit; a power receiving unit that receives power supplied from outside and transmits the power to the first control unit; a second communication unit capable of constantly communicating with the information processing device; a battery that supplies power to the second communication unit; and a second control unit that supplies power from the battery to the first control unit to activate the first control unit when the second communication unit has received an activation command from the information processing device.

A control device which predicts the timing of disconnection of a power supply is provided with a machine learning device configured to learn the disconnection timing of the power supply. The machine learning device is provided with a state observation unit configured to observe an operation content for the control device for each user as one of state variables representative of a present state of an environment, a determination data acquisition unit configured to acquire determination data which indicates that power disconnection of the control device is commanded by the user, and a learning unit configured to learn the operation content for each user and a command for the power disconnection in association with each other by using the state variable and the determination data.

A robot system includes a robot arm driven by an electric motor and a vehicle that is movable and supports the robot arm. A control method includes (a) moving the vehicle to a work station of a first type and (b) driving the robot arm in the work station of the first type. The (a) executes a first operation mode for, in a part of the movement to the work station of the first type, moving the vehicle in a state in which electric power is not supplied to the electric motor, starting supply of the electric power to the electric motor during the movement of the vehicle in the state in which the electric power is not supplied to the electric motor, and arranging the vehicle in the work station of the first type in a state in which the electric power is supplied to the electric motor.

The purpose of the present invention is to stop the power supply to a specified device among a plurality of devices to be supplied with power, and maintain the power supply to the other device. An IO-Link master is provided with: an upper-level communication control unit which receives a specification of a device to which the power supply is to be stopped; and a power supply control unit which controls a device power supply switching unit corresponding to the device to which the power supply is to be stopped, to stop the power supply to said device while maintaining the power supply to the other device.

A plant operation apparatus according to an embodiment operates a multi-shaft combined-cycle power plant including at least a plurality of gas turbines as a plurality of devices to be operated. The plant operation apparatus includes an interactive processing unit and a display unit. The interactive processing unit can display on the display unit an activation setting screen on which activation sequence in an activation operation of the gas turbines and number of gas turbines to be in an operating state after the activation operation can be selected, and/or a shutdown setting screen on which shutdown sequence in a shutdown operation of the gas turbines and number of gas turbines to be in an operating state after the shutdown operation can be selected.

A device for a machine tool, which is detachable from an attachment part of the machine tool, includes: a data generating unit that generates data; a first communication unit that transmits the data generated by the data generating unit to an information processing device; a first control unit that activates and controls the first communication unit; a power receiving unit that receives power supplied from outside and transmits the power to the first control unit; a second communication unit capable of constantly communicating with the information processing device; a battery that supplies power to the second communication unit; and a second control unit that supplies power from the battery to the first control unit to activate the first control unit when the second communication unit has received an activation command from the information processing device.

A numerical controller includes: a monitor unit that monitors a water level; a backup unit that performs power supply when a main power source is turned off; and a cutoff circuit that cuts off the power supply, and when the water level monitored by the monitor unit detects a predetermined water level, the power source of the backup unit from an external power source means is cut off. Thus, the power supply is cut off before the flooding occurs in the numerical controller, which makes it possible to reduce the damage caused by electrolytic corrosion.

A control device which predicts the timing of disconnection of a power supply is provided with a machine learning device configured to learn the disconnection timing of the power supply. The machine learning device is provided with a state observation unit configured to observe an operation content for the control device for each user as one of state variables representative of a present state of an environment, a determination data acquisition unit configured to acquire determination data which indicates that power disconnection of the control device is commanded by the user, and a learning unit configured to learn the operation content for each user and a command for the power disconnection in association with each other by using the state variable and the determination data.

A system includes a controller of a power generation system including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to control the power generation system to provide inlet bleed heat flow to a gas turbine during deceleration of the gas turbine. The instructions also cause the controller to receive a first temperature, a rotational speed of the gas turbine, and an inlet bleed heat flow rate. Additionally, the instructions cause the controller to calculate an exhaust flow rate based on at least the first temperature, the rotational speed, and the inlet bleed heat flow rate. Further, the instructions cause the controller to control the power generation system to isolate a fuel source from the gas turbine at a portion of normal operating speed of the gas turbine sufficient to achieve a purging volume during coast down of the gas turbine.