G3500H Generator Set Engine Caterpillar


Electric Starting System

Usage:

G3512H GF4
如果怀疑起动系统存在故障,则请使用本步骤对电气系统进行故障诊断与排除。

在 ECM 接收到钥匙开关电源后,ECM 就具备在任何时间开始发动机拖动的能力。 ECM 通过全局 CAN 数据链路收到起动指令。 如果发动机配备预润滑系统,在开始发动机拖动之前,发动机将会等待,直至完成预润滑循环为止。

配置参数

以下配置参数的设置用于控制发动机盘车:

  • 起动系统 #1 曲轴循环的最大数

  • 起动系统 #1 曲轴循环剩余间隔

  • 起动系统 #1 曲轴持续时间

  • 起动盘车终止转速

ECM 可控制安装在发动机上主起动系统对面的辅助起动系统。 请参考故障诊断与排除, "配置参数"以了解与辅助起动系统的配置参数相关的信息。

起动马达的 ECM 启动

ECM 通电电磁阀,以控制至空气起动马达的供气。

ECM 通过手动盘车继电器 #1 的常闭触点向电磁阀提供电流。

电流通过手动盘车继电器 #2 的常闭触点从电磁阀回到 ECM。

手动激活起动马达(超越控制)

使用连接到发动机接口接头中的手动拖动开关可以手动拖动发动机。 将此输入切换至蓄电池正极将通电手动盘车继电器 #1 和手动盘车继电器 #2。

此动作导致电磁阀直接连接到蓄电池正极和蓄电池负极。

蓄电池正极通过手动盘车继电器 #1 的常开触点向电磁阀提供电流。

电流通过手动盘车继电器 #2 的常开触点从电磁阀回到蓄电池负极。

Caterpillar 电子技师 (ET) 可用于超越至起动电磁阀的 ECM 输出。 超越通电电磁阀。 请查看 Cat ET 上提供的 "Starting System Relay Status(起动系统继电器状态)"来确定 ECM 输出的状态。

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