Matches 1 - 42 out of 42
Match Document Document Title
7602128 Device and method to configure same  
A motor controller for controlling an electric motor including a soft starter and a human-machine interface for control and configuration of the soft starter. The soft starter includes a visual...
7352141 Device and method to monitor an apparatus  
An apparatus for monitoring and control of one or more electric motors, including a motor controller, equipped with a soft starter. The soft starter includes memory for storing operations and event...
7119505 Servo motor control system  
In a servo control system, a numerical control device and at least one servo amplifier are connected to each other with a serial bus to control a servo motor connected to the servo amplifier. In...
7038421 Method and system for multiple servo motor control  
A system for control of a plurality of motors comprising: an inverter including at least three legs, with each leg including two series switching devices configured to receive a command from a...
7023169 Method for changing speed of motor group  
A method for changing the speed of a motor group, in particular for starting or stopping it, the motor group comprising a plurality of squirrel-cage induction motors or synchronous motors and...
6933698 Method of driving a servo motor with a built-in drive circuit  
Disclosed is a method of driving a servo motor with a built-in drive circuit in which a common rectifying circuit is provided on a distribution board to which a plurality of the servo motors with...
6812657 Motor control for two motors  
A load in an electrical apparatus is driven by two motors M 1 , M 2 . Switching means (R 1 , R 2 ) switches the motors M 1 , M 2 between: a series configuration, in which the motors M 1 , M 2 are...
6806660 Motor controlling serial communication device and motor driver  
A motor controlling serial communication device includes an upper controller having a first IC and a first connector, and motor drivers having second ICs, second connectors and third connectors....
6791294 Servo control system  
There is provided a serial transmitting section for serially transmitting a command frame 100 which is sent from a host controller 1 to a positioning type servo amplifier 30 and a command...
6686712 Motor network control system  
A motor network control system is provided which is capable of reducing the wiring length of a power cable and in which upon replacement of a motor or an inverter of a specific motor unit, no...
6680590 Vibration motor and apparatus using the same  
A vibration motor obtains a FAST signal when r.p.m. of the motor is faster than reference speed, whereby an output-driving circuit is controlled by the FAST signal to omit parts of the powering...
6653810 Motor control system  
A motor controller circuit for controlling an electric motor in response to motor commands from a host controller. The controller circuit includes a motor driver circuit for providing motor driver...
6522096 Control circuit for a robot power supply  
A mechanism controller for controlling power to motors of a mechanism having several motors, such as a robot. Each motor has a resolver for indicating the motor position. A driver unit is...
6348774 Method for controlling several stepping motor modules with prior loading of ramp data  
In a method and device for controlling several stepping motor modules in printing or copying machines, sets of ramp data are centrally calculated in a computer in a calculation phase and are...
6281645 Motor control system and image forming apparatus using the same  
A motor control system includes a processor having a clock output terminal for outputting clock pulses in desired cycles, a plurality of motors, and a plurality of motor drivers which are provided...
6028404 Motor drive circuit system utilizing multiple DC power driving devices switchable between parallel, and series/parallel combinations  
At least two components that use DC power to drive at least two motors, such as DC armatures, field windings, etc., collectively referred to as DC driving devices, are connected together by...
5986416 Apparatus and method for driving a mechanically-driven device in an electrical vehicle  
The apparatus is used for driving a mechanically-driven device in an electrical vehicle having at least one electrical traction motor. The apparatus comprises an auxiliary electrical motor...
5757154 Electric motor braking circuit arrangement  
A motor braking circuit arrangement, for use with a series/universal motor and a power supply for supplying power to the motor, including two separately actuable switches electrically...
5667141 High pressure cleaning means  
A high pressure cleaning means is described with a preferably portable housing having a high pressure pump (6) and an electric motor drive (7) for the high pressure pump (6), the motor drive having...
5163170 Spin and or stall detector for an electrically propelled traction vehicle  
For a traction vehicle having two wheels driven by separate electric motors, a spin/stall condition is indicated if one of the wheels is rotating faster than a predetermined reference speed while...
4825133 Electromechanical actuator control system  
An electromechanical actuator includes an electric motor and a control and drive circuit mounted integrally with the electric motor. The control and drive circuit includes a serial-to-parallel...
4782271 Electronic motor control circuit  
A motor control circuit is utilized to monitor and control the power to two series connected 110-120 VAC motors, to detect an imbalance between the operation of the two motors, and to remove the...
4698561 Use of SCR's in extended retarding  
An improved drive system for large mining trucks employing combined diesel/electric propulsion or the like wherein AC current generated by the alternator is rectified before powering wheel motors...
4658189 Series connected series motors for independent loads  
A traction drive system for a vehicle is disclosed which comprises a pair of series wound motors (32,34) which are connected in series with each other and which drive independent traction wheels...
4633147 Electric powered vehicle and method of propelling the same  
An electric powered vehicle or the like includes a first mechanical drive system for a first side of the vehicle and a second mechanical drive system for a second side of the vehicle. A first DC...
4532458 Variable-speed electrical machines  
An arrangement to provide variation of the speed or other operating parameters of an electrical machine without connection to the rotor. The machine is of the induction type having a winding in...
4463289 Wheel slip control using differential signal  
Apparatus for controlling wheel slip in a locomotive driven by d.c. motors which receive power from a diesel driven generator, has sensors which provide signals representing speeds of different...
4458182 Drive device with two mutually counteracting motors for eliminating gearing backlash  
With small drive torque the motors counteract one another, with full-load output they act in the same sense upon the load, so that the backlash or play between the drive, the gearing and the load...
4350219 Battery powered electric motor vehicle  
The battery energized electric motor vehicle has a main driving motor connected to the battery via a footpedal operated control circuit; an auxiliary electric motor for a steering device is...
4309642 Device for feeding a wire electrode  
Device for feeding a consumable wire electrode. Two feeding units are mounted in tandem. Each of the feeding units is provided with a pair of rolls and coupled to a direct current motor driving one...
4289997 Drive apparatus having at least two electric motors  
A drive apparatus has at least two electric motors. There is also a central control common to all motors which lie in series in a closed-circuit energy supply. Each motor has an individual control...
4271379 Web fed printing press motor control  
A web fed press has at least one press unit including a first web driving means driven by a first motor. Downstream from the press unit is a second web driving means, such as nip rolls, driven by a...
4259621 Arrangement for guiding the rotary speed of one or more follower motors in response to the pulse frequency of a guide pulse frequency generator  
A speed regulator for a guide and follower motor assembly. A guide pulse frequency generator driven by a guide motor drives a frequency converter which drives a follower motor. The frequency...
4105934 Magnetic tape reproducer with series interconnected torque motors in play mode  
Reproducing apparatus for magnetic tape in which the forward and rewind torques motors are series-interconnected to moderate their torques and limit the tape tension during play mode only, thereby...
4012674 Dual motor web material transport system  
A ribbon drive and motor control system in which the instantaneous speed and torque output of a pair of motors are controlled interdependently to bidirectionally transfer ribbon or other web...
3918574 Multiple D.C. permanent magnet motor drive for belt type conveyors  
A multiple D.C. motor drive for wire and other belt type of conveyors is disclosed. D.C. permanent magnet motors with their armatures electrically connected in series to an adjustable voltage power...
3863119 COMMUTATORLESS MOTOR APPARATUS  
A commutatorless motor apparatus is disclosed which comprises a plurality of commutatorless motors each including a synchronous motor to which power is supplied through thyristor power converters...
3826958 ELECTRIC VEHICLE CONTROL  
An electric vehicle control which utilizes the counter EMF DC motor with a spinning armature serving as a control of power between the DC source and the car motor. A smooth infinite variation from...
3594620 REAR LIGHTED PROJECTOR WITH DUAL ELECTRIC MOTOR DRIVE  
The invention pertains to viewing apparatus for motion-picture film and particularly concerns rear- or back-lighted motion-picture viewing devices of the type commonly known as viewers, editors,...
3590349 VOLTAGE UNBALANCE DETECTOR FOR SERIES-CONNECTED MOTORS DRIVEN BY A COMMON POWER SOURCE  
Described is a system for detecting the absence of a load on one of the two drive motors connected in series across a common source of driving potential. This is accomplished by connecting an...
3379945 Alternating current electric motors  
2930957 Motor control method and apparatus  
Matches 1 - 42 out of 42