Fig 14-5
Signal overview (Generating set)
14.2
Functions
14.2.1
Start
The engine is started by injecting compressed air directly into the cylinders. The solenoid
controlling the master starting valve can be energized either locally with the start button, or
from a remote control station. In an emergency situation it is also possible to operate the valve
manually.
Injection of starting air is blocked both pneumatically and electrically when the turning gear
is engaged. Fuel injection is blocked when the stop lever is in stop position (conventional fuel
injection).
The starting air system is equipped with a slow turning valve, which rotates the engine slowly
without fuel injection for a few turns before start. Slow turning is not performed if the engine
has been running max. 30 minutes earlier, or if slow turning is automatically performed every
30 minutes. Stand-by diesel generators should have automatic slow turning.
Startblockings and slow turning are handled by the system on the engine (main control module).
14.2.1.1
Startblockings
Starting is inhibited by the following functions:
●
Turning gear engaged
●
Stop lever in stop position
●
Pre-lubricating pressure low
●
Local engine selector switch in blocked position
●
Stop or shutdown active
14-6
Wärtsilä 46F Product Guide - a19 - 1 December 2017
Wärtsilä 46F Product Guide
14. Automation System
Содержание 12V46F
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