Registration system for web feeding
    1.
    发明公开
    Registration system for web feeding 失效
    网页输入注册系统

    公开(公告)号:EP0630723A3

    公开(公告)日:1995-01-11

    申请号:EP94107059.1

    申请日:1994-05-05

    IPC分类号: B26D5/34 H02P5/52 H02P5/00

    摘要: An apparatus and method are disclosed for controlling the motion of a machine system so as to cut individual lengths from a web having graphics on predetermined web positions and which allows the use of an inexpensive AC induction motor. An AC induction motor (42) has an output power shaft for imparting the motive force necessary to drive the machine system, such as a web feeding system. A sensor (29) is operatively coupled to the AC motor for determining the position of the motor during system operation. A controller (26) is operatively connected to the sensor and motor and forms a closed loop control circuit. The controller changes the feedback loop characteristics of the closed loop control circuit during a stop, hold or start condition of the motor. By adding an externally generated compensating signal to the input of the feedback loop, the controller also minimizes acceleration error. The controller also limits the value of a signal reaching the feedback loop of the control circuit to a given maximum value so as to eliminate any over-reaction of the system, while allowing a signal having less than a given threshold value to proceed unaffected to the feedback loop.

    摘要翻译: 公开了一种用于控制机器系统运动的装置和方法,以便从具有在预定卷筒纸位置上的图形的纸幅切割单个长度,并且允许使用廉价的AC感应电动机。 交流感应电动机(42)具有用于传递驱动机器系统所必需的动力的输出动力轴,例如卷材给料系统。 传感器(29)可操作地耦合到AC电动机,以在系统操作期间确定电动机的位置。 控制器(26)可操作地连接到传感器和电动机并形成闭环控制电路。 控制器在电机的停止,保持或启动状态下改变闭环控制电路的反馈回路特性。 通过将外部产生的补偿信号添加到反馈回路的输入端,控制器还将加速度误差最小化。 控制器还将到达控制电路的反馈环路的信号的值限制到给定的最大值,以便消除系统的任何过度反应,同时允许具有小于给定阈值的信号不受影响 反馈回路。

    Apparatus and method for controlling elevator doors
    3.
    发明公开
    Apparatus and method for controlling elevator doors 失效
    Einrichtung und Verfahren zumAufzugstürensteuerung。

    公开(公告)号:EP0677475A2

    公开(公告)日:1995-10-18

    申请号:EP95301951.0

    申请日:1995-03-23

    IPC分类号: B66B13/14

    摘要: An apparatus for controlling an elevator door 12 includes a three phase AC motor 26 that receives control signals from a controller 18. The signals are issued at control points along a speed versus distance profile map 24 that represents the control points as a percentage of the total distance to be travelled by the elevator door 12. The total distance of door travel in one direction is measured be counting the number of pulses generated by an incremental encoder 32 during a training run wherein the door is moved between its extreme positions at a constant speed. The number of pulses counted is then normalized to represent 100% of the distance travelled. During operation, the pulses are counted whenever the elevator door 12 is in motion and control signals are issued based upon the number of pulses counted.

    摘要翻译: 用于控制电梯门12的装置包括三相交流电动机26,其接收来自控制器18的控制信号。这些信号沿着速度对距离分布图24的控制点发出,该图表示控制点的百分比 距离由电梯门12行驶的距离。在一个方向上门行驶的总距离是在训练期间计数由增量编码器32产生的脉冲数,其中门以恒定速度在其极限位置之间移动 。 然后对计数的脉冲数进行归一化,以代表行进距离的100%。 在操作期间,每当电梯门12运动并且基于计数的脉冲数发出控制信号时,脉冲被计数。

    Single cycle positioning system
    4.
    发明公开
    Single cycle positioning system 失效
    单循环定位系统

    公开(公告)号:EP0624834A2

    公开(公告)日:1994-11-17

    申请号:EP94106420.6

    申请日:1994-04-25

    IPC分类号: G05B19/407

    摘要: A single cycle positioning system utilizing a three phase wye connected induction motor (10) includes a three phase inverter (28) and a microprocessor (20) for controlling the inverter to generate three phases of power. Pulse width modulation techniques are utilized and in response to a start signal the frequency of the power to the motor is increased up to a running frequency, and in response to a stop signal the frequency of the power applied to the motor is decreased along with a corresponding reduction of the voltage applied to the motor.

    摘要翻译: 利用三相星形连接的感应电动机(10)的单循环定位系统包括三相逆变器(28)和微处理器(20),用于控制逆变器以产生三相功率。 使用脉宽调制技术,并且响应于起动信号,马达的功率的频率增加到运行频率,并且响应于停止信号,施加到马达的功率的频率随着 相应地降低施加到电机的电压。

    MAIN SHAFT MOTOR CONTROL METHOD
    6.
    发明公开
    MAIN SHAFT MOTOR CONTROL METHOD 失效
    主轴电动机控制方法

    公开(公告)号:EP0451287A4

    公开(公告)日:1992-06-17

    申请号:EP90914960

    申请日:1990-10-15

    申请人: FANUC LTD.

    摘要: A main shaft motor control method capable of carrying out contour machining with a high accuracy. A vector control processor performs speed loop processing to obtain a torque command (Tc). It is also adapted to carry out (S4, S7) a vector control operation in accordance with a magnetic flux command (Ζc), which is set to a predetermined constant level (CFΖ), when it judges that the main shaft motor is driven in a contour control mode, whereby irregularity in speed of the motor and vibration thereof which are ascribed to a delay of the actual magnetic flux in the main shaft with respect to the magnetic flux command are prevented to enable contour machining to be carried out with a high accuracy. In a normal speed control mode or a tool change orientation mode, a vector control operation is carried out (S4-S6, S8) in accordance with a torque command (Tc) and its maximum value (Tcmax), a maximum magnetic flux command (Ζcmax) determined according to the rotational speed of the motor, and a magnetic flux command (Ζc) determined on the basis of a minimum magnetic flux command (NRΖcmin, ORΖmin).

    Digital servo-control apparatus
    7.
    发明公开
    Digital servo-control apparatus 失效
    数字伺服Steuerungsgerät。

    公开(公告)号:EP0479136A1

    公开(公告)日:1992-04-08

    申请号:EP91116448.1

    申请日:1991-09-26

    IPC分类号: G05B19/19

    摘要: A digital servo-control apparatus which controls the rotation of a servomotor on the basis of a digital position command value representative of a target position and a digital position feedback value output from a position detecting device. The apparatus comprises a device for calculating a feedforward value at intervals of a predetermined period on the basis of the amount of change of the position command value, a device for delaying the position command value by a period of time corresponding to an operation delay in the feedforward value calculating device, a device for calculating a velocity command value by adding the feedforward value to a deviation of the position feedback value from the position command value delayed by the delay device, and a device for driving the servomotor according to the velocity command value determined by the calculating device.

    摘要翻译: 一种数字伺服控制装置,其基于代表目标位置的数字位置指令值和从位置检测装置输出的数字位置反馈值来控制伺服电动机的旋转。 该装置包括:用于基于位置指令值的变化量来计算预定周期的间隔的前馈值的装置,用于将位置指令值延迟一个对应于操作延迟的时间段的装置 前馈值计算装置,用于通过将前馈值与由延迟装置延迟的位置指令值的位置反馈值的偏差相加来计算速度指令值的装置,以及根据速度指令值驱动伺服电动机的装置 由计算装置确定。

    PROCEDE DE REGULATION DE LA VITESSE DE ROTATION D'UN MOTEUR ELECTRIQUE
    8.
    发明公开
    PROCEDE DE REGULATION DE LA VITESSE DE ROTATION D'UN MOTEUR ELECTRIQUE 失效
    规则程序,以期电动机转速。

    公开(公告)号:EP0355115A1

    公开(公告)日:1990-02-28

    申请号:EP88903863.0

    申请日:1988-04-22

    申请人: LOGILIFT SARL

    发明人: EVIN, Jean

    IPC分类号: E05F15 G05B19 G05D3 H02P23 H02P27

    摘要: L'invention se rapporte à un procédé de régulation de la vitesse de rotation d'un moteur électrique à courant alternatif entre deux positions angulaires extrêmes du rotor. Ce procédé est caractérisé en ce que, à l'initialisation, on détermine le nombre théorique (N) de périodes complètes (T) du courant alternatif (i) devant alimenter le moteur (1) pour l'entraîner sur un tel déplacement angulaire, on mémorise ce nombre théorique (N), en fonction de la position chronologique (X) de ces périodes (T) complètes dans leur nombre théorique total (N), on élabore une table des variations de l'alimentation du moteur à prévoir pour respecter une consigne de vitesse prédéterminée, lors de l'utilisation, on compte le nombre réel (N') instantané des périodes complètes du courant alternatif depuis une position extrême (EI) vers l'autre position extrême (EF), en fonction de la position chronologique (X) du nombre réel (N') on adapte l'alimentation du moteur sur la valeur donnée par la table pour le nombre théorique correspondant. Application à l'industrie du matériel électrique et électro-technique.

    METHOD FOR OBTAINING A PREDETERMINED POSITION OF AN ANTENNA
    9.
    发明公开
    METHOD FOR OBTAINING A PREDETERMINED POSITION OF AN ANTENNA 审中-公开
    程序用于获取天线的预定位置

    公开(公告)号:EP2115814A1

    公开(公告)日:2009-11-11

    申请号:EP07852278.6

    申请日:2007-12-14

    发明人: DALIN, Erik

    IPC分类号: H01Q3/02 H02P27/08

    摘要: Method for obtaining a predetermined position for a satellite antenna, whereby a controller (9) is caused to transfer information to a velocity controller (3), which in turn is being caused to transfer information to a current regulator (4), being caused to transfer current to a motor which is intended for setting the desired position of the satellite antenna. The invention is characterized in that an electrical motor (5) is caused to receive current from the current regulator (4) so that the electrical motor (5) is caused to turn a predetermined angle during a predetermined time interval, in that an angle sensor (6) is positioned on the satellite antenna and is caused to read an absolute angle or an angular displacement of the satellite antenna, and in that the angle sensor (6) is connected to the controller (9) so as to create a feedback loop. The present invention also relates to an automatic control system.

    Safety device for automatic entry systems
    10.
    发明公开
    Safety device for automatic entry systems 审中-公开
    Eherangssystem的Sichercheitsvorrichtungfürautomatis

    公开(公告)号:EP1475502A1

    公开(公告)日:2004-11-10

    申请号:EP03425294.0

    申请日:2003-05-07

    申请人: Rib S.r.l.

    发明人: Bosio, Giorgio

    IPC分类号: E05F15/00 G05B19/4061

    摘要: The invention concerns a safety device for power operated closing systems, such as industrial, commercial, garage, gate electromechanical systems and similar, where the closing system has at least one moving part driven by an electric motor using mains supply voltage and frequency current, governed by an electronic control panel. As a safety measure, the device makes us of an encoder or an encoder and inverter in combination, to generate signals to the electronic panel indicating the position and speed of the moving part so as to control and limit the dynamic or impact force of the latter on encountering an obstacle during its travel.

    摘要翻译: 本发明涉及一种用于动力关闭系统的安全装置,例如工业,商业,车库,门机电系统等,其中关闭系统具有由电动机驱动的至少一个运动部件,使用市电电源电压和频率电流 通过电子控制面板。 作为安全措施,该装置使我们成为编码器或编码器和逆变器组合,以向电子面板生成指示移动部件的位置和速度的信号,以便控制和限制后者的动态或冲击力 在旅行期间遇到障碍。