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JP2009187573 |
To provide a method for combining a user definition-custom function block incorporated in a process plant.A user can generate a function block by combining a plurality of files selected from a group of files provided by the manufacturer ...
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JP2009181242 |
To improve control accuracy by reducing vibration and noise of control operation of a PID controller performing digital control.This digital PID controller has: a detector 2 detecting a present analog state amount of a control subject 1;...
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JP2009163705 |
To provide an analog output circuit that reliably detects abnormality in a digital/analog converter and the like and is inexpensive, and to provide a mass flow rate control device that uses it.The circuit is an analog output circuit that...
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JP2009163608 |
To perform start/stop control of each machine so that the integrated operation time is uniformed, and continuous operation time and continuous stop time are never continued for a long period of time.A start/stop order designation means 1...
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JP2009153250 |
To provide a drive apparatus for inexpensively and properly feedforward controlling a drive means, and to provide an image forming apparatus using the drive apparatus.The drive apparatus includes: a drive source; a driven section driven ...
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JP2009146426 |
To solve a problem in which an error control signal often has an error itself, and is reliable only in a predetermined frequency range.A method, system and computer program product to control position of an error control module in a lith...
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JP2009140217 |
To facilitate a cooperative control without needing any advanced data communication network and also without using a management apparatus.In the cooperative control method for controlling a plurality of apparatuses 1 so that shared equip...
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JP2009129172 |
To provide a state control system for averaging power consumption by synchronizing them even when a plurality of state control devices are combined.A state control device 100a whose priority is the most significant transmits an output co...
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JP2009116721 |
To stably control a control object with strong interference, without generating hunting or the like, in temperature control or the like.Proportional gains of controllers C1, C2 of respective channels are brought into a proportional gain ...
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JP2009116514 |
To perform control wherein interference occurring between a plurality of control targets is considered while reducing trouble on adjustment of a parameter of a PID adjuster.A transfer function matrix parameter identification means 16 ide...
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JP2009110520 |
To provide for reliable PID feedback control in reliance on temperature measurements in a respiratory system without requiring measurements of flow rate.A heater system (16) is provided for a respiratory system (10) having a PID feedback...
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JP2009105244 |
To arrange a first connector and a second connector, mounted on a single substrate, back to back on a pair of opposite case walls although a bus extension structure of a plurality of control units constituted such that the plurality of c...
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JP2009104439 |
To provide a servo actuator enabling anyone to easily perform gain adjustment thereof.The servo actuator has a speed feedback loop for controlling the speed of a motor, inserts a notch filter means into the speed feedback loop, and elimi...
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JP2009098965 |
To reduce deterioration of damping performance and positioning performance of a mobile body.A controller 5 for controlling drive of the mobile body in a predetermined drive pattern includes a generation part 6 for generating a jerk patte...
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JP2009083074 |
To provide a control device for a machine tool capable of performing a control to suppress interference between a pair of servo motors and efficiently performing highly accurate machining without adjusting torsional rigidity for each kin...
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JP2009076098 |
To provide a closed loop system process controller including PID controllers, which automatically calculates a proper proportional gain of the PID controller in response to disturbance or an abrupt change in a target value.The closed loo...
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JP2009076072 |
To provide a method and device for upgrading and providing control redundancy in a process plant.An exemplary disclosed method of upgrading software for a control device of a process control system includes: instantiating a replacement c...
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JP2009070306 |
To provide a digital signal processing circuit, wherein digital control corresponding to analog PID control is achieved by combining a first filter performing moving average processing or the like and a second filter circuit performing l...
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JP2009070396 |
To provide a servo controller reducing vibration caused by mechanical characteristics and attaining coincidence of loci in reciprocation.A differentiator computes a speed feedforward signal by differentiating a position instruction signa...
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JP2009062899 |
To reduce energy consumption when a variable valve lift device is steady, when controlling the variable valve lift device by a control method using an I term (an integral term) such as PI control.When the variable valve lift device is a ...
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JP2009064419 |
To reduce the energy consumption of a vibrator.The servo-control system for a hydraulic system 7 comprises a pump 8 driven by a motor 9, which feeds hydraulic fluid to a vibrator 1 or vibrating system comprising eccentric weights driven ...
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JP2009061519 |
To solve the problem wherein a conventional FF cogging compensation scheme by a cogging compensation current table measured under static conditions and made into a table cannot exhibit sufficient vibration damping effects as a phase does...
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JP2009060744 |
To provide a motor controller capable of equalizing the response of a desired axis to the one of a prototype model part, even during acceleration and deceleration, in a multi-axis servo system.In this motor controller provided with a plu...
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JP2009055677 |
To provide a support device suitable for a servo control device which controls a servo motor as a drive source of a mechanical device to a desired state.The support device 5 is composed of: a memory data part which stores signal data suc...
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JP2009048462 |
To improve a processing speed for calculating a resonance frequency.In a servo motor system 1, a servo controller 3 connected to a motor 2 is provided with a mechanical resonance frequency compensation apparatus 21. The mechanical resona...
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JP2009043278 |
To provide a belt drive control device and an image forming apparatus which prevent a displacement of each color caused by rotational irregularities of an endless belt.The device includes a rotation control means for a feedback control o...
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JP2009036141 |
To provide a control device for a plant, which reduces electric power consumption of a control actuator when a control deviation of feedback control is small, and provides a good following performance when a target value is changed.Feedb...
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JP2009031993 |
To provide a feedback control device, capable of determining the version of a controlled system without complicating the configuration so much.A high voltage power supply circuit 111 of new version is configured substantially in the same...
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JP2009025424 |
To simplify constitution by preventing temperature of an object to be temperature controlled from overshooting the target temperature and rising immediately after the turning-on of power.A wavelength conversion laser device includes a PI...
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JP2009020580 |
To achieve stable and highly precise angular speed follow-up characteristics and angle precision in response to wide-ranging angular speed commands.This driving control device is provided with a control system configured of a profile typ...
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JP2009015575 |
To provide a two-degree of freedom digital controller for making a control output quickly and highly precisely follow a target command without causing overshoot or steady-state deviation by using a low cost command device for applying on...
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JP2009015545 |
To improve tracking ability to a target value in ramp control.When a temperature in a heating chamber detected by a temperature sensor 13 is a switchover temperature nx-n or lower, which is lower than a final target temperature nx by an ...
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JP2009009177 |
To provide a desired control characteristic by automatically calculating a demanded PID constant by input of a single adjustment value.An input part 11 inputs adjustment strength for adjusting a control response of control. A parameter c...
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JP2008305157 |
To provide an economically advantageous PID feedback control system, for enhancing easily responsiveness and robustness.The PID feedback control system provided with a control function 110, a subtraction function 112, and a target value ...
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JP2008305158 |
To provide a function for stabilizing control when a characteristic of a control object is abruptly changed in a PID feedback control system.The PID feedback control system provided with a control function 110, a subtraction function 112...
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JP2008299697 |
To facilitate adjustment for processing a workpiece in a desired state by avoiding saturation of a control input.A first matrix showing a relation between a target temperature SP and a control variable MV and a second matrix showing a re...
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JP2008293192 |
To provide a control gain automatic setting device by which appropriate control gain is obtained automatically even when a parameter of a transfer function of a control target cannot be clearly expressed with a mathematical equation.A co...
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JP2008282159 |
To excellently handle a problem of a multi-input/multi-output control system by use of a comparatively simple linear model with respect to a multi-input/multi-output-system control device.The linear model 50 with a current Ib applied to ...
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JP2008282410 |
To provide a model structure of a control object suitable for decoupling control or the like and to provide a controller, a temperature controller and a heat treatment apparatus using the same.A control object model 1 has a structure in ...
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JP2008282413 |
To provide a fluid temperature controller capable of coping with an individual difference in a flow control valve, capable of restraining satisfactorily overshooting, and capable of coping sufficiently with a load disturbance.A hydraulic...
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JP2008269165 |
To achieve the smooth transition of each controller into rated operation by eliminating the sharp change of servo currents in restoring the failure of two installed opening sensors.This servo valve control device for controlling the driv...
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JP2008269349 |
To quickly detect an abnormal position deviation of a control device with feedforward control implemented therein.In a position deviation estimation processing section 40, an estimate position deviation value Err is calculated, for examp...
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JP2008255788 |
To provide a driving amount control device capable of reducing the response delay and deviation in a driving amount adjustment of a controlled object, for instance, adjustment of the throttle valve opening.When a target opening DTHR is v...
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JP2008250993 |
To prevent occurrence of hunting or the like even in a control object with strong interference, in temperature control or the like using a gradient temperature (temperature difference).A temperature controller comprises a controller Cg o...
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JP2008243176 |
To properly compensate frictional disturbance in a position controller.A moving direction signal output part 27 determines a moving direction of a moving object, and outputs a signal according to the moving direction. The position contro...
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JP2008242818 |
To provide a digital controller capable of lessening operations at an input and output checking test and shortening a period of the input and output checking test.A test connector 14 and switching circuit 13 are arranged on a control boa...
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JP2008243081 |
To stably control a process having a characteristic such as plate thickness control in a rolling equipment.In this process control method for controlling a process 31 having an influence coefficient correlated to an input variable A amon...
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JP2008225632 |
To provide a servo controller equipped with the setting function of a servo-control parameter for properly setting a servo-control parameter even when device configurations are changed.The NC controller for performing servo-control is pr...
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JP2008215611 |
To improve a pulse width modulated (PWM) valve control system adjustable to the changes of operating conditions such as non-linear behaviors and temperatures since a system using a PWM valve is affected by these changes.In one embodiment...
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JP2008218597 |
To easily carry out the maintenance or the replacement of a controlling electronic apparatus by accessing the controlling electronic apparatus in a cabinet from a surface other than the front face thereof, e.g., from the back face.This c...
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