Abstract: A servo motor controller capable of eliminating inconvenience that the position of a shaft or the like of a servo motor is detected or set erroneously due to influence of noise or the like is provided. A servo motor controller that detects Z-phase signals of an incremental-type encoder that detects rotation of a servo motor to perform driving control of the servo motor includes: a position detection unit that detects a reference position of a rotating shaft of the servo motor on the basis of the Z-phase signal of the encoder; a signal interval detection unit that measures intervals of a plurality of detected Z-phase signals; and an abnormality determination unit that determines that the Z-phase signal is abnormal when the interval measured by the signal interval detection unit is equal to or larger than a prescribed threshold.

Abstract: A motor control device is a motor control device which controls a spindle motor of a machine tool, the device including: a low-pass filter which averages torque command values or drive current values of the spindle motor and calculates averaged load information of the spindle motor; and a time constant calculation unit which calculates, as a time constant of the low-pass filter, a first time constant based on a cut-off frequency according to the rotation number of the spindle driven by the spindle motor, or a second time constant based on a cut-off frequency according to a value produced by multiplying a of cutting tooth number of a tool by the rotation number of the spindle.

Abstract: The determination of a slip constant is simplified upon driving a motor for which the slip constant is unknown, based on the acceleration time when accelerating an induction motor from start up to a predetermined rotation speed. A parameter determination support device for motor driving includes: an automatic measurement part which automatically measures characteristic information including the acceleration time upon driving an induction motor to accelerate from start up to a predetermined rotation speed set in advance, relative to each slip constant, based on a plurality of slip constants set in advance; and an estimation part which estimates, as the slip constant of the induction motor, a slip constant at which the acceleration time up to a predetermined rotation speed becomes the shortest, among a plurality of slip constants, based on the characteristic information.

Abstract: Information is collected from a management target device having a drive unit such as a machine tool, and this collected information is more practically used. An information collection device includes a collection unit that collects, from management target devices having a drive unit, operating state information which is information indicating an operating state of the management target device while operating accompanying movement of the drive unit; and a comparison unit that extracts a plurality of sets of information matching in a predetermined condition from the operating state information thus collected, and outputs a comparison result of the plurality of sets of information thus extracted.

Abstract: To provide an observation apparatus, an observation method, and an observation program capable of presenting a point of interest for finding a wasteful waiting time of a machine. The observation apparatus includes an observation data acquisition unit configured to acquire observation data on an operation status of a machine along with time information, an extraction unit configured to extract, on the basis of a first condition relating to the observation data, a time range of the observation data corresponding to an operation of the machine, the operation having a possibility of generating a waiting time, and an output unit configured to output information on the extracted time range.

Abstract: To provide an observation apparatus, an observation method and an observation program capable of easily understandable output of a relation between a signal waveform representing an actually-observed operation of a machine and an instruction program to the machine. An observation apparatus includes an observation data acquisition unit for acquiring observation data on an operation status of a machine along with time information, an execution status acquisition unit for acquiring execution status data including an execution position and a specific parameter value for an instruction program to the machine, along with time information, and a display unit for displaying the observation data and the execution status data in association with each other in time series.

Abstract: A motor control device according to an aspect of the present disclosure controls a motor by switching between speed control and position control, and sets a maximum voltage applied to the motor during the position control to lower than a maximum voltage applied to the motor during the speed control.

Abstract: A failure location specifying device, a failure location specifying method, and a failure location specifying program capable of specifying locations of various failures occurring in a mechanism unit of a machine efficiently are provided. A failure location specifying device includes: a failure history database that stores a specific frequency band occurring resulting from a failure of a machine in correlation with at least an event code indicating a location of the failure; an input unit that receives data related to vibration during operation of the machine as an input; and an output unit that matches the specific frequency band to a frequency included in the data related to vibration to specify the location of the failure and outputs the event code.

Abstract: To provide an observation device, an observation method, and a computer-readable medium developed to allow checking of observation data in entirety. An observation device comprises: a data acquisition unit that acquires observation data together with temporal information, the observation data including at least one of an internal behavior signal about a numerical controller for controlling a machine tool, etc., and feed axis control data and spindle control data detected from a motor of the machine tool, etc.; a setting unit that sets a time scale for the observation data acquired by the data acquisition unit; a print data generation unit that generates print data including the observation data represented on the time scale set by the setting unit; and a print data output unit that outputs the print data generated by the print data generation unit to a printer capable of producing a long printed matter.

Abstract: The determination of a slip constant is simplified upon driving a motor for which the slip constant is unknown, based on variation of acceleration when accelerating an induction motor from start up to a predetermined speed. A parameter determination support device for motor driving includes: an automatic measurement part which automatically measures characteristic information including a speed during acceleration and acceleration upon driving an induction motor to accelerate from start up to a predetermined speed set in advance which is no more than a base speed of the induction motor, relative to each slip constant, based on a plurality of slip constants set in advance; and an estimation part which estimates, as a slip constant of the induction motor, a slip constant having the smallest variation in acceleration, among a plurality of slip constants, based on the characteristic information.

Abstract: To provide a parameter determination support device and a program capable of simplifying determination of driving parameters upon driving a motor for which the slip constant is unknown.

Abstract: A data collection device capable of reducing the load of a data collection process and network communication by monitoring trigger at a plurality of cycles is provided. The data collection device includes a control unit, and the control unit includes: an event monitoring unit that acquires first trigger information from the machine tool at a first cycle and monitors whether a starting condition and an ending condition for acquisition of the data have been established on the basis of the first trigger information; a sampling control unit that instructs the machine tool to sample the data at a second cycle shorter than the first cycle when the starting condition is established and instructs the machine tool to end the sampling when the ending condition is established; and a data acquisition unit that acquires the data sampled by the machine tool from the machine tool together with second trigger information.

Abstract: A control apparatus of a machine tool, the control apparatus including: a numerical control unit configured to create a spindle axis command and a feed axis command according to a tapping program; a spindle axis control unit configured to control rotational operation of the spindle axis according to the spindle axis command; a rotation detector configured to detect a rotation position of the spindle axis; and a feed axis control unit configured to control feeding operation of the feed axis according to the feed axis command on the basis of the rotation position. The numerical control unit is further configured to include, in the spindle axis command, a speed command value during return that does not depend on maximum rotation speed during machining of the spindle axis and that is higher than the maximum rotation speed during machining, as a command of return operation.

Abstract: To simplify determination of drive parameters upon driving a motor for which circuit constants are unknown, and shorten the time required in determination.

Abstract: A servo motor controller capable of eliminating inconvenience that the position of a shaft or the like of a servo motor is detected or set erroneously due to influence of noise or the like is provided. A servo motor controller that detects Z-phase signals of an incremental-type encoder that detects rotation of a servo motor to perform driving control of the servo motor includes: a position detection unit that detects a reference position of a rotating shaft of the servo motor on the basis of the Z-phase signal of the encoder; a signal interval detection unit that measures intervals of a plurality of detected Z-phase signals; and an abnormality determination unit that determines that the Z-phase signal is abnormal when the interval measured by the signal interval detection unit is equal to or larger than a prescribed threshold.

Abstract: A motor control device according to an aspect of the present disclosure controls a motor by switching between speed control and position control, and sets a maximum voltage applied to the motor during the position control to lower than a maximum voltage applied to the motor during the speed control.

Abstract: Information is collected from a management target device having a drive unit such as a machine tool, and this collected information is more practically used. An information collection device includes a collection unit that collects, from management target devices having a drive unit, operating state information which is information indicating an operating state of the management target device while operating accompanying movement of the drive unit; and a comparison unit that extracts a plurality of sets of information matching in a predetermined condition from the operating state information thus collected, and outputs a comparison result of the plurality of sets of information thus extracted.

Abstract: To simplify determination of drive parameters upon driving a motor for which circuit constants are unknown, and shorten the time required in determination. A parameter determination support device includes: an automatic measurement part which applies initial parameters, and automatically measures a revolution speed (rpm) of a synchronous motor, as well as a DC link voltage (V) and Q-phase voltage command (%) of a motor drive device, as operating information upon driving the synchronous motor at substantially constant speed based on a base speed, according to a test-run program; an estimation part which estimates a reverse voltage constant (V/krpm) and torque constant (Nm/Arms) as circuit constants of the synchronous motor based on the operating information; and a calculation part which performs calculation of optimum parameters tailored to the output specification of the synchronous motor based on the circuit constants.

Abstract: Information is collected from a management target device having a drive unit such as a machine tool, and this collected information is more practically used. An information collection device includes a collection unit that collects, from management target devices having a drive unit, operating state information which is information indicating an operating state of the management target device while operating accompanying movement of the drive unit; and a comparison unit that extracts a plurality of sets of information matching in a predetermined condition from the operating state information thus collected, and outputs a comparison result of the plurality of sets of information thus extracted.

Abstract: The determination of a slip constant is simplified upon driving a motor for which the slip constant is unknown, based on the acceleration time when accelerating an induction motor from start up to a predetermined rotation number. A parameter determination support device for motor driving includes: an automatic measurement part which automatically measures characteristic information including the acceleration time upon driving an induction motor to accelerate from start up to a predetermined rotation number set in advance, relative to each slip constant, based on a plurality of slip constants set in advance; and an estimation part which estimates, as the slip constant of the induction motor, a slip constant at which the acceleration time up to a predetermined rotation number becomes the shortest, among a plurality of slip constants, based on the characteristic information.