| 摘要 |
A numerical control unit that facilitates centralized management of alarm information from a variety of elements in a machine tool cabinet. A relay that outputs a malfunction alarm signal, a battery that outputs a low voltage alarm signal, a fan motor that outputs an alarm signal indicating rotation stop or a drop in rpm and a status signal indicating the rpm, and a thermometer or the like that outputs a status signal expressing ambient temperature measurements are installed in a power managing unit in a control unit of the machine tool. Each element is equipped with a wireless communications tag that temporarily stores the alarm signal/status signal and emits a wireless signal. The numerical control unit receives the wireless signal through a receiving device, and displays information about the cause (originating location) of the alarm and activates a buzzer (or a speaker) when an alarm occurs. Status information is displayed continuously.
|
