Datakom DKG-307 Manual de usuario descargar pdf (Pagina 22)

DKG-307 User Manual V-42 (24.05.2013)

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The unit provides a special function for the fuel solenoid control of a gas engine.

The fuel solenoid of a gas engine is different from a diesel engine. It should be opened after

the cranking has been started and should be closed between crank cycles. The delay between the

crank start and solenoid opening is adjusted using the Gas Solenoid Delay program parameter.

The gas engine fuel solenoid relay function may be assigned to spare relays using Relay

Definition program parameters. Also relays on an extension module may be assigned to this function.

The load shedding feature consists on the disconnection of the least crucial loads when the

genset power approaches to its limits. These loads will be supplied again when the genset power falls

below the programmed limit. The internal Load Shedding function is always active. Any of the auxiliary

relays may be used as the load shedding output.

The dummy load function consists on the connection of a dummy load if the total genset load

is below a limit and to disconnection of the dummy load when the total power exceeds another limit.

The dummy load function is the inverse of the load shedding function, thus the same output may be

used for both purposes.

The parameters used in Load Shedding feature are in the Electrical Parameters Group:

Load Shedding Low Limit: If the genset active power output goes below this limit, then the Load

Shedding relay will be deactivated.

Load Shedding High Limit: If the genset active power output goes above this limit, then the Load

Shedding relay will be activated.

The unit is able to send SMS messages in fuel theft or fuelling conditions.

These SMS messages are sent without creating visible fault condition.

These features are enabled by setting the program parameter Engine Parameters > Fuel

Consumption / Hour to a value other than 0%.

The Fuel Consumption / Hour parameter should be set to a value clearly greater than the

maximum fuel consumption of the engine.

If the fuel level measured from the sender input is decreased more than this parameter in 1

hour period, then a FUEL THEFT sms message is sent to programmed telephone numbers.

If the fuel level measured from the sender input is increased more than this parameter in 1

hour period, then a FUELLING sms message is sent to programmed telephone numbers.

6.21. Fuel Theft / Fuelling Messages

6.20. Load Shedding / Dummy Load

6.19. Gas Engine Fuel Solenoid Control

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Datakom DKG-307 Manual de usuario Pagina 22