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WO/1993/005991A1 |
An anti-skid control circuit for a wheeled vehicle and a method of processor computation confirmation within such an anti-skid control circuit includes the confirmation of proper processor operation only at a certain one of the computati...
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WO/1993/005453A1 |
The invention relates to an electronic control circuit of the ''Fail-Safe Emergency Shut-Down'' type comprising an input circuit, a first signal processing circuit, in which information is stored beforehand relating to the extreme values...
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WO/1993/004415A1 |
A method and apparatus for dealing with an instantaneous voltage drop of the power supply in a CNC equipment, by which any input unit for switching on/off the external power supply can be dispensed with and the button operation is simple...
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WO/1992/017828A2 |
A signal selection system has input thereto a plurality of redundant input signals (A, B, C, D) having varying values along with signals indicative of the validity of the plurality of input signals, comparison logic (42-52) compares all ...
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WO/1991/011757A1 |
A control system comprising a device to be controlled, a sensor to provide a signal indicative of a predetermined parameter, an electrical circuit to supply said signal to a managing means responsive to said signal to control said device...
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WO/1991/010176A1 |
A device is provided to prevent erroneous operation of an object to be controlled connected to the controller if the clock is interrupted. When a clock monitoring unit (15) detects that no clock pulse signal (CL) is generated from a cloc...
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WO/1991/008535A1 |
A backup mode of operation for a process control program sends messages, via a local area network (20), to a program running in an active mode to obtain current values of process control data and configuration information. Upon failure t...
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WO/1990/013822A1 |
A control switch comprises a monitored operating element (1, 10) which introduces and conducts an input instruction (14) in control systems, in particular of machines, installations or the like. A drive (3, 4), which may be a magnetic sy...
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WO/1990/011556A1 |
A system for controlling the input and output signals in a PMC (programmable machine controller). In addition to an ordinary input/output signal region (23a), a false input/output signal region (23b) is provided to use the signals of the...
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WO/1990/007736A1 |
The device for the redundant control of a power device (R) may be comprised of two programmable switches (A1, A2) capable of elaborating a control order. Said switches (A1, A2) are fitted with two respective logical circuits designed to ...
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WO/1990/003602A1 |
A control system includes a microcontroller (18) which receives input signals from input sensors (14) and transmits output signals to electrically actuated solenoid valves (16) in response to the input signals. A drive circuit controller...
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WO/1990/002364A1 |
A fault diagnosing system adapted to diagnose a fault of CNC (numerically controlled apparatus) system having a PC (programmable controller) by the host computer at a remote site. The host computer (4) is adapted to perform a fault diagn...
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WO/1990/001732A1 |
This invention relates to an impingement detection/driving stop method which can quickly detect the impingement of a machine operation portion driven by a servo motor against foreign matters, can quickly stop driving of the machine opera...
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WO/1989/011122A1 |
An apparatus for detecting and analyzing a fault condition occuring in an engine electrical generator set (21) while providing means for inhibiting the engine electrical generator set (21) upon the occurence of the fault. The apparatus u...
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WO/1989/010865A1 |
An electronic control unit for steering the rear wheels of a road service vehicle comprises: a steering device (LE) controlled, in turn, in an emergency by an emergency steering signal which controls appropriately and in accordance with ...
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WO/1989/002124A1 |
Circuit modules for providing digital or analog outputs from computational devices in a manner tolerant of malfunctions in module components. In the digital output embodiment, two independent voting circuits (18a, 18b) provide outputs to...
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WO/1989/000726A1 |
A controller for deducing optimum countermeasures in case the object to be controlled or the product becomes defective, particularly suitable for setting and controlling the operation conditions of an injection molding machine. To determ...
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WO/1988/005570A1 |
Processes and circuitry for the monitoring of final control elements, which was hitherto realised with acoustic or optical warning systems, but has proved insufficient for computer-controlled final control elements, in particular safety ...
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WO/1988/004071A1 |
A highly-reliable multiplex control apparatus is composed of a plurality of subsystems which are completely separate from each other. Signals from status quantity detectors (14, 15, 16) of each of the subsystems are each output to output...
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WO/1988/003083A1 |
An injection molding machine that has a computer-containing numerical controller connected to a host computer and that can be started and stopped on the stored data that indicates operable condition/inoperable condition of the injection ...
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WO/1987/007967A1 |
Adaptive control systems, in particular self-repairing monitoring and control networks of such systems which are computer controlled. Failure of the computer in known computerised control systems leads inevitably to the failure of the co...
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WO/1987/003044A1 |
A computer system comprising two processors (P1, P2) to control the parameters of an internal combustion engine, in particular to adjust the digital controller of a Diesel injection pump. Both processors (P1, P2) share in normal operatio...
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WO/1986/000558A1 |
A body of an industrial robot includes a fixed constituent part (11), and a plurality of movable constituent parts (12, 13, 14). The robot has air-tight chambers (15, 16, 17) in which at least some of the fixed and movable constituent pa...
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WO/1986/000155A1 |
The resetting circuit is intended to be used with a microprocessor. The microprocessor is reset if it deviates from a set program. At each cyclic input signal, a control is carried out to know if, after a certain time interval, an output...
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WO/1985/005195A1 |
A method and system for improving the reliability of an electronic system (20) formed of subsystems (22) which perform different functions. The electronic system (20) is analyzed to determine which of the subsystems (22) is most likely t...
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WO/1985/005059A1 |
A system for setting a movable region in a numerical control system, in which a mechanical moving portion is moved to a new no-entry region by a control unit as instructed by an instruction operation board. At this moment, the position i...
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WO/1985/003789A1 |
A control device for monitoring the proper use of an electrical apparatus (1), especially a copying machine, which is connected to a current source via an electric cable (2a, 2b). The device comprises a current sensor (3), e.g. an induct...
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WO/1985/003472A1 |
A safety method for a robot system having at least a robot (1), peripheral units (2 - 5) worked by the robot, a robot controller (6) for allowing the robot to operate peripheral units in a predetermined task and a teaching operation boar...
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WO/1985/003159A1 |
A control apparatus for controlling an electrical appliance (37) connected thereto in response to a series of coded input signals and particularly to the rings of a telephone (15). The apparatus includes an input stage which has an input...
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WO/1984/004976A1 |
The device according to the invention comprises on input/output cards (4) a plurality of electronic circuits (300, 400, 500) forming the logic interfaces between the connection bus with the central unit on one hand and the sensors or act...
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WO/1984/002589A1 |
A numerical control apparatus is provided with a processor (102a), a control program memory (102b), a memory (102c) holding files, and an input means (102d) for accessing the files, and the processor (102a) arithmetically processes contr...
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WO/1984/001631A1 |
Numerical controlling device and method which comprise a processor (102a), program memory (102b) for storing a numerical control program, and data memory (102c). Processor (102a) computes on working data inputted externally in accordance...
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WO/1984/000829A1 |
A process control system includes redundant digital controllers and a plurality of input/output (I/O) modules for interfacing with remote field sensors and actuators. Bi-directional communication between controllers and I/O modules is ac...
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WO/1983/003015A1 |
A programmable control system with non-isolated inputs and outputs wherein an input device (PB1) is connected across a main supply (L1, L2) in series with an impedance (R1). A control input signal, derived from the input device (PB1), is...
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WO/1982/004010A1 |
In a method and an apparatus for safe-guarding a press (1) by monitoring the press motion, use is made of the fact that the force exerted by the press is an almost invariable function of the position of the upper press platen in relation...
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WO/1982/003929A1 |
In a program runaway monitoring circuit for microcomputers which generates a run signal every time a predetermined step is executed in a circulating program, a run signal discriminating means (4, 5) is provided for detecting that the fre...
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WO/1982/002357A1 |
A workpiece holding state detecting system controls a robot in accordance with preinstructed instruction data and puts an unmachined workpiece in the chuck of a lathe for a robot controller. In this system, sensors for (WDS, SG) detectin...
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WO/1982/002019A1 |
A safety mechanism for an industrial robot, in which a switch actuator (46) is disposed between the arm and the hand of the industrial robot to sense mechanical impact relative to the arm or hand of the robot, and a fixedly disposed limi...
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WO/1982/001801A1 |
Circuit for signalling, by means of a signalling device, the defaults at a current consumer connected through an electronic coupling device, with which a control signal, causing the insertion of the current consumer, may be brought at th...
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WO/1982/001625A1 |
In an electric power source for a control unit equipped with a main power source unit (600) including a control circuit power source (601), a driving power source (602) and one or more extension power source units (700), each of which in...
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WO/1982/001264A1 |
A servomechanism (10, 12, 14, 16) avoids load-damaging conditions by being shut down whenever a monitor (24) fails to detect a change in the saturation condition of the power amplifier (10) in response to the application of a test signal...
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WO/1982/001262A1 |
Improvement in a signal transmitting and receiving device for transmitting and receiving the signals corresponding to an M-function, an S-function and a T-function between a numerical control unit and a machine tool. A redundant signal (...
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WO/1982/000533A1 |
Method and apparatus to facilitate the operation of two servoactuators (42, 44) with a tw%ne (2/1) fail operational capability. In preferred embodiments, four signal processing channels (72, 74, 76, 78) are provided, two of which are act...
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WO/1981/000774A1 |
Multiple redundant sensor signals (10, 11, 12) are processed through an equalizing (20, 21, 22) and selecting (46, 100) network which outputs the midvalue signal and eliminates all null offsets occurring among signals. Errors due to drif...
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WO/1980/001946A1 |
A combustion control circuit for controlling a burner in a hot-water or hot-air equipment is composed of semiconductor integrated circuits of a simple composition that enable stabilized initiation even under a transient state of source v...
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WO/1980/000506A1 |
The monitoring device of a rudder control unit comprises an element (1) providing an order value signal corresponding to the desired angular position of the rudder and devices to make the rudder rotate so as to bring it to the angular po...
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WO/1980/000198A1 |
The process comprises two complementary circuits (4, 5) allowing the substitution of controls signals, when they are wrong by security limit values calculated by separate circuits (10, 11, 17, 18), a circuit (21) producing an alarm signa...
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JP7469601B2 |
A control device for industrial machines includes a plurality of signal input-output circuits configured such that pulse widths of pulse signals output from the signal input-output circuits are different from each other. The control devi...
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JP7470018B2 |
To provide a control system that can balance protection control of a control object with availability of a control system in a higher dimension.A control system controlling a motion of a control object comprises a normal control module o...
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JP7467382B2 |
To provide a motor-driven operation mechanism and a failure determination method capable of determining a failure of the motor-driven operation mechanism at a lower cost than before.A motor-driven operation mechanism of an embodiment com...
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