CONTROL SYSTEM (CONT’D) E-ECU (Cont’d) Requirement The table below shows the operating conditions of the E-ECU. I/O Regulation
Basic Performance Vibration
Waterproofness
Requirement Rated voltage 12 VDC Operating ambient temperature -30°C ~ 80°C Storage ambient temperature -40°C ~ 110 °C Operating voltage range 10.0 ~ 16.0 VDC Minimum operating voltage 6.0 VDC Min. Severity level To be installed on a place of 45 or lower in severity level The acceleration, speed, and 70.4m/s (rms) Max. displacement of the ECU mount must 44.6 mm/s (rms) Max. conform to the requirements shown to the 0.283 mm (rms) Max. right in an overall range of 5 - 1000 Hz. 0.800 mm (p.p) Max. Waterproofness (of connector)
JIS D0203 S2 compliant The ECU must not be installed with its connector facing upward.
Precautions: •
Install the E-ECU in a location that is not subject to steam or high-pressure water for cleaning.
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Install the E-ECU in a location that is well ventilated and not subject to direct sunlight.
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Install the E-ECU so that the connector faces downward. Failure to do so may trap water in the connector, resulting in corrosion of connector pins.
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Do not plug or unplug the connector for at least 6 seconds after the E-ECU is turned on or off.
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Do not touch connector pins with bare hands. Doing so may corrode or statically charge connector pins, resulting in damage to electronic components in the E-ECU.
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Do not force a measuring or testing probe into the female coupler of the connector. Repeated plugging/unplugging may cause contact failure of connector pins, resulting in malfunction of the E-ECU.
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Ensure no water is trapped inside the coupler when plugging or unplugging the connector. Water inside the coupler may corrode connector pins, resulting in malfunction of the E-ECU.
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Avoid plugging/unplugging the connector more than ten times. Repeated plugging/unplugging may cause contact failure of connector pins, resulting in malfunction of the E-ECU.
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Do not use the ECU that has suffered drop impact.
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When the machine is used in areas where a cryoprotectant/salt is distributed or near the seashore, the aluminum case of the E-ECU may corrode, resulting in malfunction of the E-ECU. Use a cover to protect the E-ECU against salt intrusion.
Current consumption The engine control-related components including ECU, rack actuator, EGR valve, CSD, main relay, rack actuator relay, starter relay, starting aid relay, lamp, and switch require the current consumption of 4.6 [A] in measurement. Among these, the cold starter such as CSD requires the current consumption of 1A, so select the alternator capacity of 5A for frequent cold starts or 4A for otherwise.
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E55W, E60, E80 Electronic Control System Manual
