Process for switching between main supply and a frequency inverter and vice versa for an escalator drive
    1.
    发明授权
    Process for switching between main supply and a frequency inverter and vice versa for an escalator drive 有权
    用于自动扶梯驱动的主电源和变频器之间切换的过程,反之亦然

    公开(公告)号:US06626279B2

    公开(公告)日:2003-09-30

    申请号:US10130121

    申请日:2002-05-15

    IPC分类号: B65G1700

    摘要: A method of controlling the drive of conveyor installation which includes a drive motor (26) and a frequency converter (42) whose output is adjustable, between a load operation and an idle mode, in the form of an escalator (10) or a moving sidewalk, where: in the load operation mode drive motor (26) is supplied with a line voltage at an essentially constant line frequency (fNetz), and in the idle mode with an output voltage of the frequency converter (42); the line voltage and the frequency converter's output voltage are compared with respect to frequency and phase position; the frequency converter (42) is set for an output frequency which has a predetermined spacing (&Dgr;fup, &Dgr;fdown) from the line frequency (fNetz); a demand to switch modes is signalled by a conveyance signal generator (48); and at the point in time (t1, t4), after a demand to switch modes has been signalled, when the output frequency of the converter (42) has reached the predetermined frequency spacing (&Dgr;fup, &Dgr;fdown) from the line frequency (fNetz), and a predetermined phase spacing has been achieved between the frequency converter's output voltage and the line frequency (fNetz), a switch-over signal (58) is emitted to switch the drive motor (26) between the frequency converter supply and the line supply.

    摘要翻译: 一种控制传送装置驱动的方法,其包括驱动电机(26)和变频器(42),其输出可在自动扶梯(10)或移动的形式的负载操作和空闲模式之间调节 人行道,其中:在负载操作模式驱动电动机(26)中以基本恒定的线路频率(fNetz)提供线电压,并且在空转模式下以变频器(42)的输出电压供电; 将线路电压和变频器的输出电压相对于频率和相位位置进行比较; 频率转换器(42)被设置为具有来自线路频率(fNetz)的预定间隔(Deltafup,Deltafdown)的输出频率; 通过传送信号发生器(48)发信号通知切换模式的要求; 在时刻(t1,t4)的时刻(t1,t4)之后,当已经发出切换模式的需求时,当转换器42的输出频率从线路频率(fNetz)达到预定的频率间隔(Deltafup,Deltafdown)时, ,并且在变频器的输出电压和线路频率(fNetz)之间已经实现了预定的相位间隔,发射切换信号(58)以在变频器电源和线路供电之间切换驱动电动机(26) 。

    Variable speed passenger conveyor and method of operation
    2.
    发明授权
    Variable speed passenger conveyor and method of operation 失效
    变速乘客输送机和操作方法

    公开(公告)号:US6049189A

    公开(公告)日:2000-04-11

    申请号:US738618

    申请日:1996-10-29

    IPC分类号: B66B25/00 H02P5/34

    CPC分类号: B66B25/00 Y02B50/225

    摘要: A control system for a passenger conveyor includes a ready-to-operate mode, a standby speed and a nominal speed. A method to operate the passenger conveyor includes the steps of: transitioning the conveyor from ready-to-operate mode to nominal speed using a frequency converter; switching from frequency converter to line power at nominal speed; switching back to frequency converter if no passengers are present and transitioning from nominal to standby speed; and transitioning from standby speed to ready-to-operate mode if a predetermined amount of time passes without a passenger entering the conveyor.

    摘要翻译: 用于乘客输送机的控制系统包括即时操作模式,待机速度和标称速度。 操作乘客输送机的方法包括以下步骤:使用变频器将输送机从即时操作模式转换到额定速度; 从变频器以额定速度切换到线路电源; 如果没有乘客存在并从标称到待机速度转换,切换回变频器; 并且如果在没有乘客进入输送机的情况下经过预定量的时间,则从待机速度转换到即时操作模式。

    Video comparator system
    3.
    发明授权
    Video comparator system 失效
    视频比较系统

    公开(公告)号:US5440396A

    公开(公告)日:1995-08-08

    申请号:US36931

    申请日:1993-03-25

    IPC分类号: G01B11/02 G01B11/00

    CPC分类号: G01B11/022

    摘要: A comparator is disclosed for examining, inspecting and/or calibrating component parts. The comparator includes a frame, a component supporting system releasably attached to the frame for supporting a component part to be inspected and/or calibrated, a video imaging system attached to the frame for generating a video image of the component part on a video display, a graphic line image generator for superimposing on a video display graphic images arranged to display and represent predetermined dimensional ranges related to the component part, whereby the component part may be compared to the predetermined images of the graphic images.

    摘要翻译: 公开了用于检查,检查和/或校准部件的比较器。 比较器包括框架,可释放地附接到框架的部件支撑系统,用于支撑待检查和/或校准的部件;附接到框架的视频成像系统,用于在视频显示器上生成部件的视频图像, 图形线图像生成器,用于叠加在视频显示器上,图形图像被布置为显示和表示与组件部分相关的预定尺寸范围,由此可以将组件部分与图形图像的预定图像进行比较。

    Ergonomic machine actuator
    4.
    发明授权
    Ergonomic machine actuator 失效
    符合人体工学的机械执行机构

    公开(公告)号:US5396222A

    公开(公告)日:1995-03-07

    申请号:US36674

    申请日:1993-03-25

    IPC分类号: F16P3/18 G08B21/00

    CPC分类号: F16P3/18

    摘要: The present invention relates to a machine actuating system, which includes a hand actuator system which responds to the presence of at least one operator body part at a predetermined location by generating control signal and an actuator control system to actuate the machine in response to the control signal. Generally, the actuating system includes a pair of ergonomic support members, where one support member is configured and dimensioned for interactive association with the operator's left hand and the other support member is configured and dimensioned for interactive association with the operator's right hand, and a sensing system associated with each support member for sensing the presence of the operator's hands and generating the control signal.

    摘要翻译: 本发明涉及一种机器致动系统,其包括手致动器系统,其通过产生控制信号来响应于在预定位置处的至少一个操作者本体部分的存在,以及响应于控制来致动机器的致动器控制系统 信号。 通常,致动系统包括一对符合人体工程学的支撑构件,其中一个支撑构件被构造和尺寸设计成用于与操作者的左手交互地关联,而另一个支撑构件的构造和尺寸用于与操作者的右手交互联动, 系统,其与每个支撑构件相关联,用于感测操作者的手的存在并产生控制信号。