AirMan PDS185S-6C1, Service Manual

Page: 43 / 79

3. Electric System
3-11
Pin No.
Line
color
Connection Remark
※
2
15
G/Y Fuel filter No.1 terminal
No electrical connection found.
When condensate in fuel filter exceeds set volume,
floating switch inside the filter turns “ON” to be
electrically connected with this terminal electrically
connected, the contact (RY1) between CN1-4 and
CN1-8 terminals turns “OFF” to make engine
emergency stop.
●
Emergency stop set
volume:0.03-0.05gal.(120-170mL)
16 Y/L
Sending unit
No.2 terminal
No electrical connection found.
When fuel residual volume decreases, fuel level
switch turns “ON” and gets electrically connected, the
contact (RY1) between CN1-4 and CN1-8 terminals
turns “OFF to make engine emergency stop.
●
Residual fuel volume for emergency stop: less than
3.8gal.(14.5L)
17 Y/G Alternator P terminal
Generating signal inputted for disengaging starter
motor.
When frequency of P terminal exceeds 190
±
10Hz
starter relay contacts is switched to disengage starter
motor.
※
1
：
Abnormal oil pressure detection circuit of controller starts to function in 10 seconds after it detects
alternator generating signal with CN2-17 terminal.
※
2
：
Emergency stop circuit detecting fuel filter condensate accumulation is installed on PDS185S-6C1
(VE pump type) only.
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