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F504D-010

  • 发布时间:2017-02-19 12:37:41
    报价:面议
    地址:福建,福州,福建福州市闽侯西江滨大道77号正荣润园1号楼
    公司:福州卓凯电子科技有限公司
    手机:13696852881
    微信:c677530
    电话:0591-22983782
    用户等级:普通会员 已认证

    是否为使用不当引起的故障,如属于这类故障,则根据使用情况可初步判断出故障类型、发生部位。常见的使用不当包括供电电源故障、端子接线故障、模板安装故障、现场操作故障等。

    如果不是使用故障,则可能是偶然性故障或系统运行时间较长所引发的故障。对于这类故障可按PLC的故障分布,依次检查、判断故障。首先检查与实际过程相连的传感器、检测开关、执行机构和负载是否有故障:然后检查PLC的I/O模板是否有故障:最后检查PLC的CPU是否有故障。

    在检查PLC本身故障时,可参考PLC的CPU模板和电源模板上的指示灯。

    采取上述步骤还检查不出故障部位和原因,则可能是系统设计错误,此时要重新检查系统设计,包括硬件设计和软件设计。

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