COOLING FAN CONTROL CIRCUITPROBLEM TO BE SOLVED: To provide a cooling fan control circuit with a simple circuit structure and to reduce its cost.KOJIMA KAZUO小島 一夫
The PCM (powertrain control module) senses the increase in engine temperature through the CTS (coolant temperature sensor) located near the thermostat. When the temperature reaches about 223-degrees F (value depends on make/model/engine), the PCM will command the cooling fan relay to turn on th...
Related cooling fan trouble codes include:P0480 Cooling Fan 1 Control Circuit Malfunction P0481 Cooling Fan 2 Control Circuit Malfunction P0482 Cooling Fan 3 Control Circuit Malfunction P0483 Cooling Fan Rationality Check Malfunction P0484 Cooling Fan Circuit Over Current ...
The cabinet is mainly equipped with switchgear, circuit breaker, measuring instruments, and protection device.The major applications of control panel as below:1 Machines for power control 3 Automatic control system and integration system including power distribution board, power control panel, inverter,...
Cooling-fan rotation-speed control circuitThe present invention discloses a cooling-fan rotation-speed control circuit, wherein a plurality of sets of input power sources respectively having different voltages is electrically and parallel coupled to a cooling fan; a switch is installed between at ...
The control circuit has an additional power switch (21) for turning on electrical drives (12,14) in the fan device that are supplied by an energy storage device (1) or an on-board electrical system (2) and that also contain power switches (7,11). A continuous increase in the revolution...
Basically, the cooling fan circuit is an astable multivibrator built around NE555(IC1), in which the output level at pin 3 remains high for a long time and low for a short time. The low level output at pin 3 drives the cooling fan via T1 and T2. This timeout (delay) period can ...
A control for changing direction of air flow through a cooling core in response to an external signal and a purge signal includes a logic circuit and a relay assembly. The logic circuit generates a fan control signal based on the external signal, which causes the fan to turn on and operate...
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A control circuit for an electrically driven cooling fan has a relay for switching the fan in and out. Associated with the relay is resistance means for reducing the differential between the on and of