BENTLY 903200XL-050-04-00

• 型号：903200XL-050-04-00


• 数量：3


• 制造商： 厦门雄霸电子商务有限公司


• 有效期：2020/10/8 0:00:00

BENTLY 903200XL-050-04-00

BENTLY 903200XL-050-04-00

BENTLY 903200XL-050-04-00

电源缺点确

电源灯不亮,需对供电系统进行确诊.假设电源灯不亮,首要检查是否有电,假设有电,则下一步就检查电源电压是否合适,不合适就调整电压,若电源电压合适,则下一步就是检查熔丝是否烧坏,假设烧坏就替换熔丝检查电源,假设没有烧坏,下一步就是检查接线是否有误,若接线无误,则应替换电源部件.

工作缺点确诊

电源正常，工作指示灯不亮，说明系统已因某种异常而停止了正常工作。检查流程如图3所示.

输入输出缺点确诊

输人输出是PLC与外部设备进行信息沟通的通道，其是否正常作业，除了和输入输出单元有关外，还与联接配线、接线端子、保险丝等元件情况有关。

出现输入缺点时，首要检查LED电源指示器是否照应现场元件（如按钮、行程开关等）。假设输入器件被鼓舞（即现场元件已动作），而指示器不亮，则下一步就应检查输入端子的端电压是否抵达正确的电压值。若电压值正确，则可替换输入模块。若一个LED逻辑指示器变暗，而且根据编程器件监视器、处理器未辨认输入，则输入模块或许存在缺点。假设替换的模块并未解决问题且联接正确，则或许是I／O机架或通信电缆出了问题。

出现输出缺点时，首要应观察输出设备是否照应LED情况指示器。若输出触点通电，模块指示器变亮，输出设备不照应。那么，首要应检查保险丝或替换模块。若保险丝无缺，替换的模块未能解决问题，则应检查现场接线。若根据编程设备监视器闪现一个输出器被指令接通，但指示器封闭，则应替换模块。

在确诊输入／输出缺点时，最佳方法是差异究竟是模块本身的问题，仍是现场联接上的问题。假设有电源指示器和逻辑指示器，模块缺点易于发现。通常，先是替换模块，或测量输入或输出端子板两头电压测量值正确，模块不照应，则应替换模块。若替换后仍无效，则或许是现场联接出问题了。输出设备截止，输出端间电压抵达某一预定值，就标明现场连线有误。若输出器受鼓舞，且LED指示器不亮，则应替换模块。假设不能从I／O模块中查出问题，则应检查模块接插件是否接触不良或未对准。最终，检查接插件端子有无断线，模块端子上有无虚焊点。

指示确诊

LED情况指示器能供给许多关于现场设备、联接和I／O模块的信息。大部分输入／输出模块至少有一个指示器。输入模块常设电源指示器，输出模块则常设一个逻辑指示器。

关于输入模块，电源LED闪现标明输入设备处于受鼓舞情况，模块中有一信号存在。该指示器独自运用不能标明模块的缺点。逻辑LED闪现标明输入信号已被输入电路的逻辑部分辨认 。假设逻辑和电源指示器不能一同闪现，则标明模块不能正确地将输入信号传递给处理器。输出模块的逻辑指示器闪现时，标明模块的逻辑电路已辨认出从处理器来的指令并接通。除了逻辑指示器外，一些输出模块还有一只保险丝熔断指示器或电源指示器，或二者兼有。保险丝熔断指示器只标明输出电路中的保护性保险丝的情况；输出电源指示器闪现时，标明电源已加在负载上。像输入模块的电源指示器和逻辑指示器相同，假设不能一同闪现，标明输出模块就有缺点了。

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