CP56B, CP68B, CS56B, CS66B and CS68B Vibratory Soil Compactors Machine Systems Caterpillar


Electrical Schematic (Hydraulic Fan)

Usage:

CS-56B 484

配电



图 1g06054641
风扇电气示意图
(1) 自发动机 ECM 保险丝的 B+
(2) 自机器保险丝的 B+
(3) 自开关继电器的 B+
(4) ATAAC 空气温度传感器
(5) 发动机冷却液温度传感器
(6) 液压油温度传感器
(7) 风扇电磁阀
(8) 机器 ECM
(9) 发动机 ECM

当电气断路开关处于接通位置时,电源从发动机 ECM 保险丝 (1) 输送至发动机 ECM (9)。 该电压为发动机 ECM 提供主电源。

当发动机起动开关位于接通位置时,电源自机器保险丝 (2) 传输至发动机 ECM (9)。 该电压向发动机 ECM 提供唤醒信号。

当发动机起动开关位于接通位置时,电源自开关继电器 (3) 传输至机器 ECM (8)。 该电压为机器 ECM 提供主电源。

CAN 通信

发动机 ECM (9) 和机器 ECM (8) 通过 CAN 通信线路通信。

风扇转速控制装置

当发动机 ECM (9) 激活时,ECM 监视发动机冷却液温度和 ATAAC 空气温度。 发动机 ECM 通过 CAN 将此信息传输给机器 ECM (8)。

液压油温传感器 (6) 是一个电阻式传感器。 机器 ECM (8) 被动监测此传感器端子 "J1-29" 处的输入。

发动机冷却液温度传感器 (5) 是一个电阻式传感器。 发动机 ECM (9) 被动监测此传感器端子 "J2-43" 处的输入。 发动机冷却液温度传感器在发动机 ECM 的端子 "J2-37" 处接地。 发动机 ECM 中的软件将端子 "J2-43" 处的信号转换为温度值。

ATAAC 空气温度传感器 (4) 是一个电阻式传感器。 发动机 ECM (9) 被动监测此传感器端子 "J1-35" 处的输入。 进气歧管温度传感器在发动机 ECM 的端子 "J1-29" 处接地。 发动机 ECM 内的软件将输入信号转换为温度值。

机器 ECM (8) 评估来自上述传感器的输入信号以确定输出信号是否发送至风扇电磁阀 (7)。 机器 ECM 将此信号从端子 "46" 发送到风扇电磁阀的触点 "1"。 风扇电磁阀的触点 "2" 接地。 输出信号越大,风扇转速越慢。 使用 PLUS+1® 软件调节最小和最大电磁阀电流。

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