EMCPII+ for Gas Engines Caterpillar


GSC Operation Is Erratic

Usage:

G3306 07Y
系统运作描述:

GSC+ 上的故障停机指示灯以每秒钟 4 到 5 次的频率闪烁(4 到 5 赫兹)。 GSC+ 显示屏可能没有反应。 GSC+ 不会对发动机控制开关(ECS)的任何位置做出反应。

这是一个暂时或永久的 GSC+ 内部故障。 故障是由 GSC+ 中的部件故障引起的。 此外,这个故障可能由强电磁场或者电磁波频率干扰造成的。 故障发生时,继电器模块中的继电器自动关闭。 故障对发动机的影响取决于发动机的燃油系统类型。

  • 对于带有 8290 调速器的发动机,发动机在怠速下运转。 紧急停止按钮(ESPB)会关停发动机。

  • 对于带有机械调速器的发动机,发动机会停机。

测试步骤 1. 复位 GSC+

  1. 将 ECS 转到关闭/复位(OFF/RESET)位置。 如果 GSC+ 不断电,拆卸 ECS 上连接端子 6 和端子 10 的跨接线。

  1. 把 ECS 转到停止(STOP)(位置。

预期结果:

GSC+ 启动到正常显示,并且 GSC+ 应对 ECS 作出响应。

结果:

  • 合格 - GSC+ 运转正常。

    修复: 如果问题重新出现,GSC+ 需要更换。

    停止

  • 未合格 - GSC+ 工作异常,故障停机指示灯仍旧以每秒钟四到五次的频率(4 到 5 Hz)闪烁。

    修复: GSC+ 有故障。 更换 GSC+。 参见测试与调整, " EMCP 发电机组电子控制装置更换"。

    停止

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