AirMan PDS400S-6C3, Service Manual

Page: 62 / 102

3. Electric System
3-24
Pin No. Line
color
Connection Function
CN2-10 G/W Separator air temperature
sensor
Detect the separator air temperature.
The interior contact (RY3) of emergency controller is
made “ON” when the discharge air temperature becomes
higher than emergency stop set temperature and power
is sent to ECM CN3-1 terminal to bring engine to
emergency stop, and to make the lamp flash when
warning, and to make the lamp light on when engine is
abnormal.
●
Warning
･
Emergency stop set temperature
Warning temperature : 239°F(115
℃
)
Emergency stop temperature: 248°F(120
℃
)
CN2-11 Y Alternator L terminal
It detects deficiency of charging battery, and it enables
alarm lamp to blink.
CN2-12 L Engine controller (ECM)
CN3-11 terminal
Turn on the preheat lamp.
CN2-13 W/Y Engine controller (ECM)
CN3-7 terminal
The flickering the alarm lamp by detecting the abnormal
boost temperature.
●
Warning set temperature: 185°F(85
℃
)
CN2-14 Y/L Engine controller (ECM)
CN3-15 terminal
When engine cooling water temperature abnormal signal
is detected from ECM CN3-15 terminal, the emergency
controller interior contact (RY3) is made “ON” to bring
engine to emergency stop.
●
Emergency stop set temperature: 221°F(105
℃
)
CN2-15
－
NIL
CN2-16
－
NIL
CN2-17
－
NIL
CN2-18 G Sending unit Fuel gauge operates to detect the fuel level.
CN2-19 Y/B Engine coolant
temperature sensor
Used for lighting of the warning or abnormal lamp and
engine coolant temperature display.
CN2-20 B/W
Engine coolant
temperature sensor
Discharge air temperature
sensor
Separator discharge air
temperature sensor
Sending unit
Grounding
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