Matches 1 - 33 out of 33


Match Document Document Title
US20150054444 CONTROLLER FOR MACHINE TOOL INCLUDING MAIN SHAFTS  
A controller for a machine tool includes a converter converting AC power on the power supply side to DC power, a feed-shaft motor inverter converting DC power on a DC link side and AC power on a...
US20100079099 MEDICAL MANIPULATOR  
A medical manipulator includes an actuator block having a motor, a coupler detachably mounted on the actuator block and having a rotor connected to a rotatable shaft of the motor, a distal-end...
US20130049669 METHOD OF CONTROLLING POSITION OF SEAT USING SINGLE HALL SENSOR  
A method of controlling a position of a seat using a single hall sensor. A pulse is output from the hall sensor in response to the rotation of the motor when displacing the seat forward or...
US20090309531 SERVO MOTOR MONITORING APPARATUS  
Disclosed a servo motor monitoring apparatus including: a magnetic pole position calculating member to extract a magnetic pole position signal of the servo motor from a motor drive line connected...
US20080218115 Numerical controller with abnormal motor deceleration stop control means  
While a numerical controller is operating, an abnormality of a numerical control section is detected. In response to an abnormality detection signal, a motor deceleration stop control circuit of a...
US20130154538 MOTOR CONTROL SYSTEM AND SAFETY MONITORING SYSTEM THEREFOR  
Each of a host controller and a motor control apparatus included in a motor control system that drives a motor includes a step of determining, with respect to motor rotation state estimation...
US20110221377 SERVO SYSTEM, SERVO MOTOR DRIVING DEVICE, SAFETY UNIT AND METHOD FOR CONTROLLING SERVO SYSTEM  
A servo driver sets an instruction value for an operation of a servo motor based on an instruction signal from a controller. The servo driver sends the instruction value and a feedback value...
US20090079378 Safety enhanced control system for servo actuators  
An electrical control system comprising a controllably conductive device, an input receiving circuit and a timer circuit. The controllably conductive device selectively applies power to an...
US20090026995 Reliable Monitoring of the Speed in Coordinate Measuring Appliances  
In a method for reliably monitoring the speed of a moveable coordinate measuring device, a first value of the speed is calculated from measured values of the coordinate measurement system. The...
US20100097026 METHOD AND DEVICE FOR TRACKING THE POSITION OF A COMPONENT DRIVEN BY AN ELECTRIC MOTOR  
In order to track the position of a component driven by an electric motor, wherein rotational movements of the electric motor are detected and used for a position count, deviations from an...
US20080309277 Driving system for mobile robot  
In a system for driving a mobile robot having a body, a plurality of legs each comprising a thigh link and a shank link, a first electric motor and a second motor for driving the thigh link in a...
US20090267557 Method of actuator control  
The present invention is related to a method of controlling a device having a calibration process. The calibration process has a partial calibration routine and a calibration routine. A detector...
US20090091285 Electronic control device of an electrical drive system with redundant disconnection device  
In normal mode, a central unit of an electronic control device receives desired and actual values for determining desired current values which are transmitted to an electronic drive unit. The...
US20090326739 METHOD AND DEVICE FOR DETECTING OSCILLATORY FAILURES RELATED TO A SERVOCONTROL SUBSYSTEM OF AN AIRCRAFT CONTROL SURFACE  
Method and device for detecting oscillatory faults relating to an aircraft airfoil slaving chain. The device (1) comprises means for carrying out a counting of all the overshoots of a threshold...
US20080129238 Method For Detecting Earth-Fault Conditions in a Motor Controller  
The present invention relates to a method for determining the existence of an earth-fault on-the-fly and thereby protecting a motor controller having a high- and a low-side DC-link, and having...
US20130241460 DRIVE CONTROL APPARATUS  
The operation state of a servo motor is monitored and output to a user before automatic termination of power to the motor. A servo system includes a servo motor and a safety unit. The safety unit...
US20100164423 SERVO SYSTEM AND SAFETY CONTROL DEVICE  
This invention aims to achieve safety without interchanging an entire existing servo system to a servo system having the safety function. In a servo system including a servo motor, and a servo...
US20090026994 ELECTRIC POWER STEERING CONTROL  
A method for improving a failure mode diagnostic of an electric power steering system by overcoming a motor electric lock condition due to position sensor signal corruption or other motor faults....
US20090096407 METHOD AND SYSTEM FOR REMOTELY DETERMINING THE RELIABILITY OF A DC MOTOR SYSTEM  
A method and system for remotely predicting the reliability and the remaining time before failure for an DC motor system is provided. The method and system may remotely determine the reliability...
US20090096405 METHOD AND SYSTEM FOR REMOTELY PREDICTING THE REMAINING LIFE OF AN AC MOTOR SYSTEM  
A method and system for remotely predicting the reliability and the remaining time before failure for an AC motor system is provided. The method and system may remotely determine the reliability...
US20090096406 METHOD AND SYSTEM FOR DETERMINING THE RELIABILITY OF A DC MOTOR SYSTEM  
A method and system for determining the reliability and a remaining time before failure for a DC motor system is provided. The method and system may determine the reliability and a remaining time...
US20130271057 SYSTEM AND METHOD FOR ESTIMATING ELECTRICAL CURRENT IN MOTOR CONTROL CIRCUITS TO IMPROVE PERFORMANCE AND DIAGNOSTIC CAPABILITY  
An error condition detection circuit coupled to the motor control circuit reports an error condition when actual motor operation deviates from predetermined desired motor operation. An overcurrent...
US20140203751 MOTOR DRIVE CONTROLLER AND METHOD FOR OPERATING THE SAME  
A motor driver controller including a difference control section; a driver output section; a drive current detection amplifier; and a load short-circuit detection circuit. A motor and sensing...
US20100235049 Motor control unit and motor control unit for vehicle steering apparatus  
A motor control unit controls a motor including a rotor and a stator facing the rotor. A current drive unit drives the motor at an axis current value of a rotating coordinate system that rotates...
US20150212496 SERVOMOTOR CONTROL DEVICE AND PRODUCTION SYSTEM EQUIPPED WITH THE CONTROL DEVICE  
A servomotor control device includes a servomotor control circuit for controlling an inverter such that an alternating current is supplied to a servomotor when receiving a safety signal, and for...
US20100117584 Methods and Systems for Recording Operating Information of an Electric Motor  
A unit for recording operating information of an electronically commutated motor (ECM) is described. The unit includes a system controller communicatively coupled to an ECM. The system controller...
US20170038768 MOTOR CONTROL SYSTEM PROVIDED WITH FUNCTION TO DETECT ABNORMAL BRAKING  
A motor control system of the present invention includes a servo electricity supply unit supplying electricity to a servo motor, and a controller controlling the servo motor, a mechanical brake...
US20160346885 MOTOR CONTROL SYSTEM PROVIDED WITH FUNCTION TO DETECT ABNORMAL BRAKING AND METHOD OF DETECTING ABNORMAL BRAKING  
The motor control system of the present invention includes a signal receiving unit for receiving a signal for operating a mechanical brake, a position monitoring unit for obtaining the history of...
US20160334760 SERVO CONTROL APPARATUS HAVING FUNCTION OF SENSORLESS CONTROLLED STOP  
A servo control apparatus includes a sensor unit for detecting a motor speed; an amplifier for driving a motor and feeding back a current; a magnetic pole position detector; a position controller...
US20160041550 METHOD OF MONITORING SHORT CIRCUITS IN TORQUE MOTORS  
A method of monitoring an actuator system comprising a control device, a torque motor having a voltage Umc across its terminals and actuating a servo-valve, and an actuator controlled by the...
US20160008938 CONTROL DEVICE OF MACHINE TOOL WHICH ESTIMATES OVERHEATING OF MOTOR  
A control device of a machine tool which filters possible continued machining time data estimated from a value of current of a motor to thereby enable an accurate grasp of the time regardless of...
US20160006386 MOTOR DRIVE CONTROLLER AND METHOD FOR OPERATING THE SAME  
A motor driver controller including a difference control section; a driver output section; a drive current detection amplifier; and a load short-circuit detection circuit. A motor and sensing...
US20150346715 Motor Driving Device  
The present invention provides a motor driving device for easily and accurately detecting an abnormal status of a motor. The motor driving device (21) includes a control circuit (100) for...

Matches 1 - 33 out of 33