摘要:
An electronic control by frequency inverter of the displacement system of an irrigation or fertirrigation set is made up of structured pipelines, in which the water distribution sprayers are mounted, and which are coupled to each other, and supported by movable towers which are moved by gear motors driving by means of cardans the wheel gear that in turn drive pneumatic wheels, moving the structure about a fixed point, or pivot point, which is the central tower. The driving of the gear motors of each tower is performed by an electric control unit via a frequency inverter, with analogic signal, preferably a potentiometer, or position encoder digital sensor or optical sensor of alignment with relation to the front and back tower.
摘要:
A controller with at least one switch or a plurality of switches e.g. in the form of a power switchgroup for controlling an electric drive motor in a vehicle wherein a set point selector consists of a mask that is rigidly connected or interchangeably attached to an actuating member of the controller, the mask is adapted to provide a predetermined set point characteristic in cooperation with control elements that are connected to an input of an electronic circuit which includes a second input to which are connected means for varying a reference voltage at the output of the electronic circuit and the control range of the set point characteristic. The control elements cooperating with the mask may consist of an opto-electronic transmitter-receiver device.
摘要:
The present disclosure relates to a mechatronic assembly for positioning a member including a control unit and an actuator, the control unit including a control algorithm and a power bridge, the algorithm controlling the power bridge, the power bridge outputting a two-wire electric signal, the actuator including a polyphase brushless electric motor having N phases (N being or higher), binary probes for detecting the position of the rotor of the motor, and power switches suitable for supplying the N phases of the motor from the two-wire electric signal, and states of the power switches is controlled directly by a signal emitted by the detection probes.