| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor relay device for lift control which generates a sound at the time of switching operation. <P>SOLUTION: There are provided a pair of output side terminals, a semiconductor switching means in which an output stage is connected to the output terminal for switching between on/off states between the output terminals, an input determination means which determines whether a selection command input signal inputted into a pair of input side terminals is a signal for selecting on-state between the output terminals or the signal for selecting off state, and an output selection control means which transmits an output selection control signal resulting from the determination to a semiconductor switching means. Further there are provided a sound output command means which commands outputting of audible sound based on the determination result, an acoustic signal output means which outputs acoustic signal that is an electric signal corresponding to audible sound under the command, and an electricity/sound wave conversion means which converts the outputted acoustic signal to a sound wave. <P>COPYRIGHT: (C)2012,JPO&INPIT |
