Delayed safety braking apparatus for a servomotor control system
    3.
    发明授权
    Delayed safety braking apparatus for a servomotor control system 失效
    伺服电机控制系统的延时安全制动装置

    公开(公告)号:US5587640A

    公开(公告)日:1996-12-24

    申请号:US315407

    申请日:1994-09-28

    摘要: A servomotor control system is set forth that assists in overcoming the problem of servomotor shut down during a failure of the programmable control system and/or servo-amplifier. The presently disclosed servomotor control system includes a programmable control system having one or more output signals connected to control a servo-amplifier. The system further includes a servomotor that is connected for control by the servo-amplifier. A safety switch is connected for detection by the programmable control system, the programmable control system controlling the servo-amplifier to brake the servomotor upon detection of the actuation of the safety switch. A delayed braking apparatus is disposed between the servo-amplifier and the servomotor. The delayed braking mechanism is also connected to detect the actuation of the safety switch, and acts to brake the servomotor after a predetermined time period from the detection of such actuation has lapsed.

    摘要翻译: 提出了一种伺服电动机控制系统,其有助于克服在可编程控制系统和/或伺服放大器故障期间伺服电机关闭的问题。 目前公开的伺服电动机控制系统包括具有连接到控制伺服放大器的一个或多个输出信号的可编程控制系统。 该系统还包括伺服电动机,其连接用于伺服放大器的控制。 连接安全开关用于由可编程控制系统进行检测,可编程控制系统控制伺服放大器,以在检测到安全开关的致动时对伺服电机进行制动。 在伺服放大器和伺服电机之间设置延迟制动装置。 延迟制动机构也连接以检测安全开关的致动,并且在从这种致动的检测已经过去的预定时间段之后起作用以制动伺服电动机。

    Fill system equipped with apparatus for continuous controlled inflow to
a balance tank
    4.
    发明授权
    Fill system equipped with apparatus for continuous controlled inflow to a balance tank 失效
    填充系统配备有连续控制流入平衡罐的装置

    公开(公告)号:US5941417A

    公开(公告)日:1999-08-24

    申请号:US864557

    申请日:1997-05-28

    IPC分类号: B65B37/06 B65B57/14 B65B3/00

    摘要: A system to be utilized at a dairy in the distribution of a pumpable food product from a storage tank to a filling machine for dispensing into containers. The system includes a balance tank for storing the product on the filling machine. The balance tank is in flow communication with a storage tank via a product line, and also has a level probe for monitoring the amount of product in the tank. A product pump pumps the food product to a valve mechanism which is also disposed on the product line. A programmable logic controller receives a signal from the probe indicative of the level of the product in the balance tank, and generates a series of signals to the product pump and the valve mechanism to maintain a steady flow of product from the storage tank to the balance tank. In this manner, foaming of the product in the balance tank is eliminated or substantially reduced to acceptable levels.

    摘要翻译: 在乳制品中使用的系统,其将可泵送食品从储存罐分配到用于分配到容器中的灌装机。 该系统包括用于将产品存储在灌装机上的平衡罐。 平衡罐通过产品线与储罐流体连通,并且还具有用于监测罐中产品量的液位探头。 产品泵将食品泵送到也设置在产品线上的阀机构。 可编程逻辑控制器从探针接收指示平衡罐中产品水平的信号,并产生一系列信号到产品泵和阀机构,以保持产品从储罐到平衡的稳定流动 坦克。 以这种方式,消除了平衡罐中的产品的发泡或基本上降低到可接受的水平。