Operation
4002−2/A1
Winterthur Gas & Diesel Ltd.
7/ 37
Item Function Effect / Procedure
11 Different sensor indications Necessary to operate the engine locally
12 Speed Setpoint button Arrow shows the selected mode: Speed control
mode or Fuel control mode
13 Indication of active manual
control mode
Use the rotary button to change to manual speed
control mode. The indicator (orange triangle, see
Fig. 4) shows the control mode (speed mode or fuel
command mode)
14 Fuel Command button Use the rotary button to change to
manual fuel command mode
15 Manual speed setpoint Use the rotary button to adjust between
0 rpm to maximum rpm. The maximum value is
related the installation specifications (rating etc)
16 Manual fuel command setpoint Use the rotary button to adjust between 0% to 150%
17 External speed setpoint Shows the setpoint sent to the engine control
system ECS from the remote control system
18 Used fuel command Shows the actual fuel command used for injection
19 Control location Can be Local, ECR manual, ECR remote or Bridge
20 Indication of shutdown Shows either YES or NO
21 Auxiliary Blower status Shows either STOPPED or RUNNING
22 Turning gear status/Main starting
air shut-off valve status
Shows the conditions that follow: Turning gear
ENGAGED, Main starting air shut-off valve CLOSED
or no data available.
23 Estimated power Shows the value of the estimated engine power or
the engine load in percent (%)
3.3.1 Procedure − Operate the Engine from the Main Page
1) To operate the engine from the main page, first make sure that the LDU-20 is the
active control location (see 9 and 19, Fig. 5). If necessary, select the CTRL.TR
button to transfer control.
2) To change modes, move the cursor on the related button (see 13 or 14) then
push the rotary button.
Note: The indicator (orange triangle) shows the control mode of the LDU-20
(speed mode or fuel command mode).
Note: If the MCM-11 becomes defective, a fuel command mode is selected
automatically.
3) To adjust the speed or fuel command setpoint, move the cursor to the related
field (see 15 or 16) then push the rotary button to enter the edit mode.
D While in edit mode, the text field has an orange frame. Turn the rotary button
to adjust the set point (turn clockwise to increase, counterclockwise to
decrease).
Note: The changes have an immediate effect on the engine.
4) To go out of the editing mode, push the rotary button again.
2015-12
Local Control Panel / Local Display Unit (LDU−20)
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