Operation
4002−1/A1
Winterthur Gas & Diesel Ltd.
7/ 15
3.3.3 Monitored Items
The pressure is monitored. If the pressure is out of the tolerance, a failure indication
shows.
The sensors are monitored. If the sensors are out of range, a failure indication shows
and the related LEDs will flash on the FCM−20 of cylinders 1 and 2 (see 0850−1
Failures and Defects of WECS Components).
3.4 Cylinder Lubricating System − Control
DRAWN FOR
7 CYLINDERS
System Bus
FCM−20
Cyl. 7
FCM−20
Cyl. 6
ALM−20
Cyl. 1
ALM−20
Cyl. 2
ALM−20
Cyl. 3
ALM−20
Cyl. 4
ALM−20
Cyl. 5
ALM−20
Cyl. 6
CAN L Bus
ALM−20
Cyl. 7
to next Pump
Lubricating
Oil
Servo Oil Rail
Filter
Measurement
Tube
Pressure
Reducing
Valve
Lubricating
Pump
4/2-way
Solenoid
Valve
Fig. 5: Cylinder Lubricating System
3.4.1 General
The last and last but one FCM−20 control the functions of the cylinder lubricating
system. When a control signal is received from an FCM−20, each ALM−20 operates
its related lubricating pump. The dual circuits of the system bus, CAN bus and power
supply make sure of redundancy.
3.4.2 Emergency Mode
If an FCM−20 or bus becomes defective, the other FCM−20 or bus makes sure that
control of the cylinder lubricating system continues. A passive failure indication is
shown in the WECS−9520 (see also 0850−1).
Engine Control System WECS-9520
2014
To Next Page
Loading...
