NUMERICAL CONTROLLER WITH SUBMERSION PROTECTION CIRCUIT

摘要

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.

主权项

1. A numerical controller comprising:
a monitor unit that monitors a water level; a backup unit that performs power supply when a main power source is turned off; a storage unit having a memory that receives the power supply from the backup unit; and a cutoff control unit, wherein the backup unit has an external power source means for supplying a backup power source, and a cutoff circuit that cuts off the power supply from the external power source means, the backup unit supplies the power source to the monitor unit, the storage unit and the cutoff control unit, the cutoff control unit performs at least a control of the cutoff circuit, and when the monitor unit detects a first water level, the cutoff control unit controls the cutoff circuit to cut off the power supply from the external power source means.