3. Electric System
3-11
PC10027-1E
4. Functions of each output relay
Mark Name
Function
RY2 Relay for starting
unloader
It goes OFF when
starter switch is ON.
Coolant temperature: Lower than 50°F(10
℃
)
･･･
When coolant temp. is higher than 50°F(10
℃
), or
when 120 seconds pass, it becomes ON.
Coolant temperature: Higher than 50°F(10
℃
)
･･･
It becomes ON 30 seconds later.
RY2 Purge function relay (Relay is continuously OFF when purge switch is ON.)
RY3
Relay for residual
pressure start
prohibition lamp
It goes ON when
starter switch is ON.
Separator receiver tank pressure:
ON in case of more than 14.6psi(0.1MPa)[1bar]
OFF in case of lower than 7.3psi(0.05MPa)[0.5bar]
RY4 Abnormality output
relay
OFF during normal operation, but ON on abnormal operation.
RY5
Relay for residual
pressure start
prohibition
It goes ON when
starter switch is ON.
Separator receiver tank pressure:
OFF in case of more than 14.6psi(0.1MPa)[1bar]
ON in case of lower than 7.3psi(0.05MPa)[0.5bar]
5. Adjustment and inspection
Perform the detection and inspection of discharge temperature, engine water temperature, and
sending unit by controller in the following steps.
(1) Connect resistance to controller as shown right.
Or use multi-speed variable resistance
(resistance value: 1.0k
Ω
) for VRc1, VRc2 and VRc3.
(2) Gradually lower resistance values of VRc1 and VRc2 and measure them when they reach
abnormal values. Then check and confirm that they are within the following ranges.
Item
Indicator
Set temperature
Resistance
(Ω)
(℃)
(
°
F)
Engine water temperature VRc1
Warning 105 221 640
±
15
Emergency 110 230
560
±
15
Discharge temperature VRc2
Warning 115 239 491
±
15
Emergency 120 248
432
±
15
(3) Sending unit
Float position
Resistance (
Ω
)
F
3.0
±
2.0
1/2 32.5
E
110.0
±
7.0
Discount-Equipment.com
Summary of Contents for PDS185S-6E1
Page 1: ...www discount equipment com D i s c o u n t E q u i p m e n t c o m...
Page 10: ...1 Specification 1 4 Unit mm A131025 D i s c o u n t E q u i p m e n t c o m...
Page 18: ...1 Specification 1 12 1 7 Piping Diagram PC14063E D i s c o u n t E q u i p m e n t c o m...
Page 19: ...1 Specification 1 13 1 8 Fuel Piping PC14001 D i s c o u n t E q u i p m e n t c o m...
