WÄRTSILÄ WARTSILA 20, Product Manual

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Local Control Panel is equipped with push buttons and switches for local engine control,
as well as indication of running hours and safety-critical operating parameters. LCP
Local Display Unit offers a set of menus for retrieval and graphical display of operating
data, calculated data and event history. The module also handles communication with
external systems over Modbus TCP. LDU
Power Distribution Module handles fusing, power distribution, earth fault monitoring
and EMC filtration in the system. It provides two fully redundant supplies to all modules. PDM
Input/Output Module handles measurements and limited control functions in a specific
area on the engine. IOM
Cylinder Control Module handles fuel injection control and local measurements for the
cylinders. CCM
The above equipment and instrumentation are prewired on the engine. The ingress protection
class is IP54.
14.1.1 Local control panel and local display unit
Operational functions available at the LCP:
●
Local start
●
Local stop
●
Local emergency speed setting selectors (mechanical propulsion):
○
Normal / emergency mode
○
Decrease / Increase speed
●
Local emergency stop
●
Local shutdown reset
Local mode selector switch with the following positions:
○
Local: Engine start and stop can be done only at the local control panel
○
Remote: Engine can be started and stopped only remotely
○
Blow: In this position it is possible to perform a “blow” (an engine rotation check with
indicator valves open and disabled fuel injection) by the start button
○ Blocked: Normal start of the engine is not possible
The LCP has back-up indication of the following parameters:
●
Engine speed
●
Turbocharger speed
●
Running hours
●
Lubricating oil pressure
●
HT cooling water temperature
The local display unit has a set of menus for retrieval and graphical display of operating data,
calculated data and event history.
14-2 Wärtsilä 20 Product Guide - a13 - 6 September 2016
Wärtsilä 20 Product Guide 14. Automation System