Omron Corporation

Masahito Tanaka

Ikuo Nanno

Mamoru Egi

Takeshi Wakabayashi

Takaaki Yamada

Yasushi Ono

Yosuke Iwai

Akira Takaishi

Naotaka Uchiyama

Nobutomo Matsunaga

Kazuo Tsuboi

Hirokazu Kitamura

Atsushi Mukai

Hideki Kobori

Hitoshi Fukuhara

Gen Yoneda

Tsunetoshi Ooba

Yoshihiro Nagami

Motohisa Furukawa

Kousaku Ando

Seiya Narimatsu

Yuuki Kataoka

Nobumasa Nakamizo

Toshiro Miyachi

Shigeyasu Kawaji

Yosuke Wai

A processing apparatus acquires a first rise transition that is a rise transition of the temperature of a winding and a second rise transition that is a rise transition of the temperature detected by a temperature sensor in a state where voltage application for raising the temperature of the winding to a predetermined temperature is performed, determines a predetermined temperature characteristic model by calculating a predetermined parameter on the basis of the second rise transition, and further determines a winding temperature characteristic model by calculating a winding related parameter on the basis of the first rise transition.

Processing device, and determination method for winding temperature calculation model

The processing device includes: a temperature transition acquisition unit that acquires rising transition of the temperature of the winding in a state in which a first voltage is applied in order to raise a temperature of the winding to a first temperature and further acquires falling transition of the temperature of the winding in a state in which a second voltage is applied in order to lower the temperature of the winding to a second temperature that is lower than the first temperature after the temperature of the winding converges to the first temperature; and a decision unit that calculates stator-related parameters on the basis of the falling transition to decide a stator temperature characteristic mode and further calculates winding-related parameters on the basis of the rising transition and a stator temperature characteristic model to decide a winding temperature characteristic model.

Processing device

Provided is a technology of enabling notification, to a user, that the state of a machine system has changed prior to occurrence of machine resonance, irrespective of the direction of a resonance frequency change. This servo driver is provided with: a servo control means for controlling a servo motor in accordance with a time-sequentially inputted command; a calculation means for time-sequentially collecting input data and output data for use in calculation of the frequency response of the servo control means while the servo control means is performing control, in accordance with a command for driving the servo motor itself, based on the command, and calculating a frequency response of the servo control means within a frequency range including a resonance peak, on the basis of the collected data; a specification means for specifying the gain of the resonance peak from the calculated frequency response; and an information output means for comparing the specified gain with a threshold lower than 0 dB, and outputting, when the gain is equal to or greater than the threshold, information for notifying, to a user, that the state of a machine system such as the servo motor has changed.

Servo driver and state change detecting method

Provided is a motor control device having a function of estimating inductance and resistance of a motor for which inductance and resistance thereof are unknown. The motor control device includes a power converter, a current controller which calculates the voltage command input to the power converter using a detection result of a current value of a drive current of the motor, a current command generation unit which specifies a frequency for motor constant calculation on the basis of an electrical time constant of the motor, generates a sine wave of the frequency for motor constant calculation, and inputs the sine wave to the current controller as the current command, and a motor constant calculation unit which obtains a frequency response while the sine wave is input to the current controller as the current command, and calculates resistance and inductance of the motor from the obtained frequency response.

Motor control device

A temperature variation of a glass substrateat a plurality of measuring points in a continuous furnacewhen preset temperatures of respective furnaces-are changed is estimated in the form of a matrix based on a model, an inverse matrix of the matrix is used so as to calculate correction values in such manner that a temperature of the glass substratecorresponds to a temperature of a desired temperature profile, and the preset temperatures are corrected based on the correction values.

Method, apparatus, and program for controlling temperature within a heating system

When a work is set on a hot plate and a heat treatment is started and the like, an addition waveform of a target temperature is formed based on a previously formed data of an adjustment value, and a temperature is controlled by adding the addition waveform to the target temperature SP, and with the data of the adjustment value, the variation in temperature of the work is prevented using an interference matrix showing a relation between the target temperature SP and the temperature of the work.

Control method, temperature control method, adjustment method, temperature controller, program, recording medium and heat treatment device

In a method of controlling the temperature of a target object by measuring to obtain detected temperatures at a plurality of measurement positions and controlling a processing device such as a heater such that each detected temperature will match the corresponding one of target temperatures set for the processing device, a preliminary step is taken to determine the degrees of interference at the measurement positions by varying the target temperatures and the degrees of interference thus determined are used to correct the set target temperatures or the detected temperatures.

Temperature control method and apparatus

A target value processing unit, includes: an input section to which a target value signal showing a target value of a control process is inputted; a target value shaping unit shaping the target value signal inputted to the input section, into a signal form which is proper for a control treatment of a regulator implementing the control process; and an output section outputting to the regulator a shaped target value signal which is shaped by the target value shaping unit. The target value processing unit realizes the high-level control process without improving the regulator.

Target value processing unit, temperature controller, control process implementing system, process controlling method, target value processing program, and recording medium

A plurality of individually corresponding heaters and temperature sensors are provided along with a plurality of a PID control means. An average temperature/gradient temperature calculating means calculates the average temperatures of the temperatures measured by the temperature sensors and the gradient temperatures based on the measured temperatures. Each of the PID control means outputs an operation signal so that the average temperatures or gradient temperatures may be made equal to the desired values. A distributing means distributes the operation signal from each of the PID control means to each heater so that control by the PID control means may produce no effect on the control of the other PID control means.

Controller, temperature regulator and heat treatment apparatus

A controller controls a physical variable such as temperature of a controlled system. A variable calculator calculates and output a manipulated variable on the controlled system based on of a target value such as a target temperature and a feedback value such as the measured temperature of the controlled system. A dead-time compensator provides a dead-time compensated output using a model simulating the controlled system having a dead time and an idealized model having no dead time, based on the manipulated variable outputted from the variable calculator to carry out an ordinary control and a dead-time compensated control. A switch functions to select the dead-time compensated control by providing a dead-time compensated output to the variable calculator or an ordinary control providing no dead-time compensated output to the variable calculator. The dead-time compensated control is carried out at least during set point response of the controller.

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Kyoto, Japan

Masahito Tanaka