G3500 Engines Caterpillar


Electrical Connectors and Functions

Usage:

G3508 2TJ

线束导线识别

卡特彼勒用11种不同的颜色识别不同的导线。 表1列出了接线的色码。

表 1
接线的色码    
代码     颜色    
BK     黑    
BR     棕    
BU     蓝    
GN     绿    
GY     灰    
或     橙    
PK     粉红    
PU     紫    
RD     红    
WH     白    
YL     黄    

除了颜色外,每根导线的全长上每隔25 mm (1 inch)都压印了特定的线路号。 从电路图上可识别实际连接的导线。

例如,在电路图上J011-RD代码表示一根压印了线路号J011的红色导线。 该导线是第1缸变压器初级信号发动机线束导线。 对于所有卡特彼勒发动机电子点火系统线束,"J011-RD"代码都表示第1缸变压器初级信号导线。

电路图也可识别导线的尺寸。 导线的尺寸或线规称为美国线规(AWG)。 除非电路图规定了不同的尺寸,否则您可假定导线线规为16 AWG。

接线箱




图 1g01047291

典型的接线箱

(1) 接线箱

(2) 电子维修工具接头

接线箱 (1) 可安装在发动机上。 该接线箱包含端子排和其它部件。

远程控制面板

某些发动机配置了远程控制面板。 该面板所在的位置取决于用户的需要。

发动机监控系统




图 2g01047293

(3) 发动机监控系统

发动机监控系统 (3) 的远程控制面板包含空燃比控制电子控制模块(ECM)和状态控制模块(SCM)。

远程控制面板(状态)




图 3g01047294

(4) 远程控制面板(状态)

该远程控制面板只包含SCM。

加拿大标准协会(CSA)空燃比控制




图 4g01047296

(5) 空燃比控制(CSA)

(6) J3 互连线束接头

(7) J5 卡特彼勒数据链路接头

(8) J6 远程转速控制接头

(9) J7 电源接头

如果发动机是遵照CSA标准配置的,远程控制模块即包含空燃比控制ECM。

分配面板




图 5g01047298

(10) 分配面板

(11) 电源指示灯

(12) 报警指示灯

(13) 紧急停机按钮

(14) 停机指示灯

(15) J3 卡特彼勒数据链路接头

(16) J5进气歧管压力传感器接头

(17) J4用户设备接头

(18) J1电源接头

(19) J6传感器接头

(20) 点火接线的柔性导线管

(21) 断路器

(22) EIS控制模块接头

(23) 诊断复位开关

如果发动机是遵照CSA标准配置的,分配面板即与电子点火系统(EIS)控制模块相连接。

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