WinGD X72 - Exhaust Valve

Operation4002−2/A1
Winterthur Gas & Diesel Ltd.
16/ 37
3.8 Exhaust Valve
The manual exhaust valve operation is only available on the local LDU−20 (at the
local control stand), while the engine is stopped.
2 3 41 WCH03168
11
12
7
6
5
8
9
10
Fig. 10: Exhaust Valve Page
Item Function Effect / Procedure
1 START AST button Start the engine in astern direction
2 STOP button Stop the engine
3 START AHD button Start the engine in ahead direction
4 CTRL. TR. button Request a control transfer to this LDU
5 Exhaust valve open dead times in
milliseconds
The time between the open/close command to the
solenoid valve of VCU and the exhaust valve stroke
6 Exhaust valve close dead times in
milliseconds
The time between the open/close command to the
solenoid valve of VCU and the exhaust valve stroke
7 Exhaust valve closing offset
in degrees
The exhaust valve stroke moves more than 15% of
the offset of the close commands
8 Air spring air Shows the actual pressure of the air spring air in bar
9 Servo oil status Shows the actual pressure of the servo oil in bar
10 Exhaust valve status Shows the status of the exhaust valve. Either OK or
FAIL (actuation or timing failure).
11 Meas. status Shows OK, or FAIL (if the positioning stroke signal is
lost)
12 Manual exhaust valve operation 0 = automatic, 1 = manually open
Local Control Panel / Local Display Unit (LDU−20)
2015-12