Power consumption display unit for machine tool

A power consumption display unit for a machine tool that machines a workpiece according to a machining program, comprising:

• machining state determining means for determining, when a main power switch used to supply power to the machine tool is ON, whether the machine tool is in a machining state where the machining program is executed to machine the workpiece or in a non-machining state where the machining program is not executed;
• power consumption measuring means for measuring a power consumption of the machine tool during a period where the machine tool is determined to be in the non-machining state by the machining state determining means;
• and
• display means for displaying the power consumption measured by the power consumption measuring means.