Description

The DGU is a diesel engine speed

controller. It is used on the ship’s

main engine to control the engine

RPM.

The desired engine set-point speed is

provided by either the AC600 ACP

or by a manual control lever. Once

the set point is established, the DGU

maintains the engine RPM at all

times.

The DGU includes all essential

signals related to the main governor

functions. It works as an independent

unit and will operate even if both

CAN networks should fail.

The DGU contains four CAN-buses

and two RS485 serial lines. Each port

is galvanically isolated.

The input supply voltage of 24 VDC

should not be below +18 V or above

+32 V. It is galvanically isolated.

Features

• Scaled in technical units

• Limit check

• Alarm and monitoring for all

channels

• Trend

• Time stamp of alarms and events

(0.001 seconds)

• Built In Self Test (BIST)

• CAN net status, error handling

Main functions

• Automatic regulation of the main

engine RPM

• Automatic limiting functions such

as scavenging air and torque.

• Manual limiting functions such

as RPM and fuel limiters

• Programmed to avoid running

in barred speed range (critical

RPM)

• Automatic reduction of RPM

(slow down) function