WORKING LOAD MONITOR DEVICE

PURPOSE:To make it possible to facilitate the change of kinds of load detecting sensors, by providing such an arrangement that unit names and signal names are read out from a memory means in order to display machining loads under a control program. CONSTITUTION:When a display coefficient DC and the like are required to be inputted, the display coefficient DC, a unit name UN and a signal name SN are inputted through a key-board, and are stored in a backup memory device 32. A load detection signal LS is read from a load detecting sensor while the unit name UN and the signal name SN stored in the back-up memory device 32 are read out and thus read values are displayed on a display device 35A. Further, load detection data LSD which are delivered through a sensor interface 37 and an A/D converter 36 are inputted to a multiplier 43 so as to be multiplied with the display coefficient DC stored in the memory device 32 to make the unit system of the data LSD coincident with that of the signal LS and displayed on the display device 35A through a converting section 44. Thereby, it is possible display the load detection data LSD with the use of the unit name UN and the signal name SN stored in the memory device 32.