Numerical control apparatus

Abstract

Devices, which correspond to I/O control signals that respectively control peripheral devices (114), and power consumptions of the peripheral devices are previously registered as parameters (103), and a state monitoring section (110) monitors whether I/O control signals are in on-state, and calculates an operating time, and a power amount calculating unit (111) calculates a power consumption amount of the peripheral device concerned on the basis of the operating time and the power consumption. Furthermore, the state monitoring section (110) has a function of, after machining is completed, forcibly stopping a peripheral device if there is a peripheral device that does not stop even after a predetermined time or after exceeding a predetermined power consumption amount, so that unnecessary power consumptions can be reduced.

Dependencies are inferred from the claim text.