23.9
Emergency operation of WECS2000
There are two functions in WECS supporting emergency opera-
tion:
·
The blackout start function is used for automatically starting
the engine after a blackout within the specified time delay.
·
The shutdown override function is used to exclude engine
shutdowns during critical operation of the vessel.
23.9.1 Blackout start OS748
Blackout start is an emergency function in WECS that allows
engine starting without prelubrication pressure.
The blackout start input in connector X6
See installation specific electrical drawings.
Note!
Normally the prelubrication pump should be supplied from the
emergency generator thus allowing normal start of the engine
in case of blackout.
WECS 2000 has a blackout start input that can be activated by
the external control system within 5 minutes of lost pre-lubrica-
tion pressure or blackout. After 5 minutes the blackout start input
is inhibited.
The engine needs to be in
Ready for start
mode or
Start
blocking
mode and
no shutdowns should be active
before
the blackout start is initiated. If the engine has been in Ready for
start mode before the blackout it will go to Start blocking mode
when pre-lubrication pressure disappears.
When activating the blackout start input the start output to the
RM (Relay Module) is activated directly. The start block checking
and slow turning (option) sequences in the MCU (Main Control
Unit) are by-passed.
Within the specified time there will be a sufficient oil-film present
on the bearing surfaces allowing starting without damage.
Fig 23-38
402308200039
32-200115/II
Instrumentation and Automation
23
WÄRTSILÄ 32
23-53
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Страница 18: ...Appendix B Welding Precautions 200640 00 6...
Страница 26: ...01 Main Data Operating Data and General Design 32 200634 01 01 8 W RTSIL 32...
Страница 60: ...Appendix A Environmental Hazards 200507 02A 10...
Страница 68: ...Page 7 7 Document No 4V92A0645 Rev j...
Страница 84: ...03 Start Stop and Operation 32 200402 04 03 12 W RTSIL 32...
Страница 98: ...04 Maintenance Schedule 32 200623 01 04 14 W RTSIL 32...
Страница 154: ...07 Tightening Torques and Use of Hydraulic Tools 32 200643 01 07 30 W RTSIL 32...
Страница 162: ...08 Operating Troubles Emergency Operation 32 200402 01 08 8 W RTSIL 32...
Страница 164: ...Specific Installation Data 2005 01 09 2...
Страница 178: ...10 Engine Block with Bearings Oil Sump and Cylinder Liner 32 200150 10 14 W RTSIL 32 34SG...
Страница 216: ...Appendix A Testing of cylinder tightness 32 200142 A 4 W rtsil 20 32 34...
Страница 226: ...13 Camshaft Driving Gear 32 200546 02 13 10 W RTSIL 32...
Страница 253: ...U tube manometer Fig 15 12 401508200050 32 200549 10 Turbocharging and Air Cooling 15 W RTSIL 32 15 19...
Страница 254: ...15 Turbocharging and Air Cooling 32 200549 10 15 20 W RTSIL 32...
Страница 274: ...16 Injection System 32 200627 01 16 20 W RTSIL 32...
Страница 280: ...Fuel System 32 200508 07 17 6 W RTSIL 32...
Страница 314: ...19 Cooling Water System 32 200050 19 14 W RTSIL 32...
Страница 394: ...23 Instrumentation and Automation 32 200115 II 23 60 W RTSIL 32...