Entries |
Document | Title | Date |
20080197797 | Motor having integral programmable logic controller - A system, in one embodiment, includes a drive having a housing, a stator disposed in the housing, a rotor disposed in the stator, and a programmable logic controller disposed inside, mounted on, or in general proximity to the housing. In another embodiment, a system includes a network, a first motor having a first integral programmable logic controller coupled to the network, and a second motor having a second integral programmable logic controller coupled to the network. In a further embodiment, a system includes a rotary machine having a rotor and a stator disposed concentric with one another, a microprocessor, memory coupled to the microprocessor, a power supply coupled to the microprocessor and the memory, and a machine sensor coupled to the microprocessor. | 08-21-2008 |
20080309274 | DUAL MODE STEPPER MOTOR - A method and structure receives a desired rotational speed and/or step frequency for an electric motor. If the desired rotational speed is above a predetermined limit, the method performs closed-loop mode control of coil current of the electric motor by varying the average voltage supplied to the electric stepper motor according to observed feedback current from the current feedback loop connected to the electric stepper motor. To the contrary, if the desired rotational speed is not above the predetermined limit, the method performs open-loop mode control of coil current of the electric stepper motor by setting the average voltage supplied to the electric stepper motor according to values computed from the step frequency, irrespective of the observed feedback current from the current feedback loop. | 12-18-2008 |
20110025249 | MOTOR DRIVE HAVING INTEGRAL PROGRAMMABLE LOGIC CONTROLLER - A system, in one embodiment, includes a drive having a housing, a stator disposed in the housing, a rotor disposed in the stator, and a programmable logic controller disposed inside, mounted on, or in general proximity to the housing. In another embodiment, a system includes a network, a first motor having a first integral programmable logic controller coupled to the network, and a second motor having a second integral programmable logic controller coupled to the network. In a further embodiment, a system includes a rotary machine having a rotor and a stator disposed concentric with one another, a microprocessor, memory coupled to the microprocessor, a power supply coupled to the microprocessor and the memory, and a machine sensor coupled to the microprocessor. | 02-03-2011 |
20130033218 | SYNCHRONOUS CONTROL APPARATUS - A synchronous control apparatus capable of switching cam curves with ease and without delay is provided. A cam curve storing unit stores a representation of a first cam curve and a representation of a second cam curve. Before switch-over of the cam curves, a control unit finds a position command value to a driven-side member, after the switch-over of the cam curves, the control unit finds the position command value, and in a switch-over period of the cam curves, the control unit finds the position command value to the driven-side member based on a value obtained by utilizing first data based on the first cam curve or a position of the driven shaft and second data based on the second cam curve to provide a weighted average at each control timing. | 02-07-2013 |
20160048116 | MOTOR DRIVE DEVICE - Motor drive device ( | 02-18-2016 |
20160077506 | PROGRAMMING CONTROL METHOD FOR SERVO FAN AND PROGRAMMING CONTROL DEVICE THEREOF - A programming control method for a servo fan and a programming control device thereof are provided in the embodiment of the invention. The programming control device is coupled to a motor. The programming control device includes an input/output interface, a micro processing unit and a function circuit. The function circuit is coupled to the input/output interface and the micro processing unit. The function circuit updates the firmware according to a magnitude of an operation voltage. | 03-17-2016 |