Operation
4002
−
1/A1
Winterthur Gas & Diesel Ltd.
The operator can adjust the user parameters e.g. maximum fuel limit, running-in
mode and fuel quality setting (FQS).
The operator selects the necessary command on the RCS (e.g. AHEAD or ASTERN).
The RCS sends the commands to operate the engine.
The related FCM
−
20 sends a load signal to the RCS from the average measured fuel
quantity signals.
Two scavenge air signals are transmitted to the RCS through the WECS
−
9520, thus
the signal has redundancy.
If there is a malfunction the WECS
−
9520 sends an alarm signal to the AMS, or a
slow-down/shut-down signal to the safety system.
5.2.1 Parameter Settings
The parameters are divided into two groups:
D
User parameters, access without password
D
Expert parameters, access with password only
The operator can adjust the user parameters e.g. maximum fuel limit, running-in
mode and fuel quality setting (FQS).
Expert parameters are changed only by service personnel, usually during
commissioning. A typical expert parameter is the firing order of the engine, which is
set only once. There is a connector for service access in the engine control room.
5.3
BACKUP Control Box
The BACKUP control box is part of the propulsion control system and installed in the
ECR console. The same control functions can be carried out as at the local control
panel (see also
5.4
Electronic Speed Control System
The speed control system is an electronic device that is not part of the WECS
−
9520.
The electronic speed control system:
D
Keeps engine speed at at the necessary value (from remote control)
D
Transfers the fuel command to the WECS
−
9520
The fuel quantity limit is related to the scavenge air pressure and engine protection.
The WECS
−
9520 receives a fuel command signal from the governor.
This signal is transmitted to all the FCM
−
20. This is the set-point for the fuel quantity
to be injected.
If the speed control system becomes defective, the engine can operate in:
D
LOCAL mode
−
manual adjustment of the fuel quantity at the local control panel,
or
D
ECR BACKUP mode from BACKUP control box in control room.
Engine Control System WECS-9520
2014
Summary of Contents for W-X82
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Page 337: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 3 21 WCH00345 2014 Air Supply...
Page 340: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 6 21 WCH01167 2014 Servo Oil Supply 9 cylinders...
Page 342: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 8 21 WCH01123 2014 Fuel Supply 9 cylinders...
Page 343: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 9 21 016 805 08 2014 Starting System...
Page 344: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 10 21 016 335 07 2014 Speed Control...
Page 354: ...Operation 4003 3 A1 Winterthur Gas Diesel Ltd 20 21 018 138 09 2014 Cooling Water...
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