Utility Circuit Breaker Status Circuit Fault
系统运作描述:
公用电断路器状态的事件代码 3546-11：其他故障模式是监控公用电断路器电路是否有没发生公用电力损失的状态改变。 EMCP 4 数字输入正在检测公用电力。 发生以下情况时，此事件将变为现行状态：
- 公用电断路器在 60 秒内连续断开 3 次（没有跳闸）。
- 检查 EMCP 继电器输出之间的系统线路是否存在间歇性开路和电阻值偏高、连接松动以及对接地短路。 EMCP 继电器输出设计用于公用电断路器控制。
测试步骤 1. 检查配线线束是否存在开路或对接地短路
- 从发动机上断开蓄电池电源。
- 断开 EMCP 和公用电断路器的配线线束。
- 测量指定的继电器输出和公用电断路器之间的配线电阻。 如果发现电阻超过 10 欧姆，则表明可能有开路或连接不良。 修理或更换配线。 如果发现电阻小于 10 欧姆，测量 EMCP 继电器输出触针和公用电断路器连接点处的蓄电池电压。 如果在两个点都发现蓄电池电源，则可能是公用电断路器故障。 如果公用电断路器处不存在蓄电池电源但 EMCP 存在蓄电池电源，修理或更换配线线束。
结果:
- - 停止
Caterpillar Information System:
C1.7 and C2.2 Industrial Engine General Information
WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Valve - Remove and Install - Grooveless Valve Retainers
WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Fluid End - Remove and Install
New Machining and Assembly Procedures Are Used on Certain C18 Marine Engines Equipped with Engine Mounted Heat Exchanger {1379} New Machining and Assembly Procedures Are Used on Certain C18 Marine Engines Equipped with Engine Mounted Heat Exchanger {1379}
An Improved Halogen Lamp is Now Available for Certain Excavators {1434} An Improved Halogen Lamp is Now Available for Certain Excavators {1434}
2015/09/11 New Software Is Used on Certain G3300 Petroleum Engines {1920}
A New Fuel Cap With Relief Vent Is Now Used on Certain XQ800 Power Modules {1273} A New Fuel Cap With Relief Vent Is Now Used on Certain XQ800 Power Modules {1273}
G3606 and G3608 Engines Engine Lifting Bracket - Remove and Install
A New Wiring Harness Is Used on Certain G3500 Engines {1403} A New Wiring Harness Is Used on Certain G3500 Engines {1403}
3500 Industrial and Generator Set Engines Fluid Recommendations
2015/09/23 A New Head Gasket Is Used On Certain Truck Engines {1100}
3516B Generator Set Engines with Dynamic Gas Blending Turbocharger Turbine Temperature Is High
WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Valve - Remove and Install - Grooved Valve Retainers
WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Plunger - Remove and Install
EMCP4.2B Utility to Generator Transfer Failure Warning
WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Manifold (Suction) - Remove and Install
WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Rod - Remove and Install - Stay Rod
EMCP4.2B Generator to Utility Transfer Failure Warning
C32 Generator Set Maintenance Interval Schedule - Prime
794 AC Off-Highway Truck Machine Systems Brake Accumulator (Parking, Service) - Remove and Install - Front, Rear, and Supply
794 AC Off-Highway Truck Machine Systems Accumulator (Steering) - Remove and Install
C175-20 Locomotive Engine DEF Tank Temperature Is High
WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Crosshead - Remove and Install
WS223, WS223 SS, WS223 XD, WS255, WS255 SS, WS255 XD, WSP223, WSP255, WSF223, WSF223 SS, WSF223 XD, WSF255, WSF255 SS and WSF255 XD Well Stimulation Pumps Crosshead - Disassemble