Figure 14.2
Local control panel and local display unit
14.1.3
Engine safety system
The engine safety system is based on hardwired logic with redundant design for safety-critical functions.
The engine safety module handles fundamental safety functions, for example overspeed protection. It is
also the interface to the shutdown devices on the engine for all other parts of the control system.
Main features:
•
Redundant design for power supply, speed inputs and stop solenoid control
•
Fault detection on sensors, solenoids and wires
•
Led indication of status and detected faults
•
Digital status outputs
•
Shutdown latching and reset
•
Shutdown pre-warning
•
Shutdown override (configuration depending on application)
•
Analogue outputs for engine speed and turbocharger speed
•
Adjustable speed switches
14.1.4
Power unit
A power unit is delivered with each engine for separate installation. The power unit supplies DC power to
the electrical system on the engine and provides isolation from other DC systems onboard. The cabinet is
designed for bulkhead mounting, protection degree IP44, max. ambient temperature 50°C.
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Product Guide Wärtsilä 34DF - 3/2012
Product Guide
14. Automation System
