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Doc.no.AA-0062-C/8-May-96 DGS 8800e

1.1.2 Regulator functions

The main purposes are:

Speed reference computation. Speed measurement and filtering. Output and limit the command signal to the fuel actuating function.

In addition, the Regulating Function has several sub-functions, such as:

Displaying data values. Programming user-dependent parameters. On-line testing. Off-line testing. Selection of alternative mode operations.

1.1.3 Actuator Function

The main purposes are:

Sense the actuator position command from the Regulator.

Positioning the actuator (and fuel-rack) according to commanded value.

In addition, the Actuating Function contains several secondary functions:

Limiting speed of fuel-rack.

Output for fuel-rack (actuator) indication (option).

Displaying data values. Repeatedly testing of System failures.


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DGS 8800e Doc.no.AA-0062-C/8-May-96

1.1.4 System configurationThis configuration drawings shows the DGS 8800e with the belonging accessories withbridge command through remote control system, and control room command fromseparate manual lever, witch are the normal arrangement for this engine type.

Bridge ControlSystem

Control RoomMan. Handle

DGU

8800e

Fuel IndexIndicator

(Option)

220 VAC Oph.)_Servo motor ~

220 VAC (lph.)Control voltage

TRAFO001

DSUDigital

Servo Unit

Electric FuelActuator

SCAVENGE

ATRTRANSDUCER

M A I N

E N G I N E

n RPMU Detectors

Figure 1.1 System configuration.

DGS 8800e for MAN B&W MC engines Instruction Manual


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