Abstract: A motor drive device includes a case including a first surface and a housing portion that opens to the first surface side, a terminal block including a terminal to which an electric wire extending to an outside of the case is connectable and being housed in the housing portion, an openable and closable cover covering the opening, and a lock unit restricting opening and closing of the cover and bringing the cover into a locked state in a state where the cover is closed. The lock unit is provided on the cover to be rotatable about an axis perpendicular to the first surface in a state where the cover is closed. An unlocked state in which the cover is openable and the locked state are switched according to rotation angle of the lock unit. The lock unit includes a state indicator indicating that the cover is in the locked state.

Abstract: A motor drive device includes a case including a first surface and a housing portion that opens to the first surface side, a terminal block including a terminal to which an electric wire extending to an outside of the case is connectable and being housed in the housing portion, an openable and closable cover covering the opening, and a lock unit restricting opening and closing of the cover and bringing the cover into a locked state in a state where the cover is closed. The lock unit is provided on the cover to be rotatable about an axis perpendicular to the first surface in a state where the cover is closed. An unlocked state in which the cover is openable and the locked state are switched according to rotation angle of the lock unit. The lock unit includes a state indicator indicating that the cover is in the locked state.

Abstract: Provided is a control device that includes a plurality of communication units that receive data from measurement control devices; a control unit that calculates an operation signal for controlling a controlled device on the basis of the data from the communication units and that outputs the operation signal to the controlled device; a storage unit that stores the data; a first monitoring unit and a second monitoring unit that perform a calculation on the basis of the data to calculate a calculation value, that determine whether the calculation value satisfies a blocking condition, and that output a blocking signal when the calculation value satisfies the blocking condition; and a first blocking unit and a second blocking unit that block the operation signal to the controlled device upon receiving the blocking signal output from at least either one of the first monitoring unit and the second monitoring unit.

Abstract: Provided is a control device that includes a plurality of communication units that receive data from measurement control devices; a control unit that calculates an operation signal for controlling a controlled device on the basis of the data from the communication units and that outputs the operation signal to the controlled device; a storage unit that stores the data; a first monitoring unit and a second monitoring unit that perform a calculation on the basis of the data to calculate a calculation value, that determine whether the calculation value satisfies a blocking condition, and that output a blocking signal when the calculation value satisfies the blocking condition; and a first blocking unit and a second blocking unit that block the operation signal to the controlled device upon receiving the blocking signal output from at least either one of the first monitoring unit and the second monitoring unit.