Diesel Engine Control Unit Datakom DKG 155 Generator Manual Start Control Panel

DESCRIPTION

The DATAKOM model DKG-155 is a microprocessor controlled unit designed to start and stop the genset manually using the key switch on the front panel. In the OFF position, the DC supply is removed from the module, thus zero power consumption is achieved. The unit powers up when the RUN position on the front panel is selected. This will also energize the fuel Solenoid Relay.

The engine is started using the next spring-loaded position marked START. Once the engine has started, the switch should be released. To shut down the engine, select the OFF position on the switch. When the engine is running, the unit monitors fault conditions and shuts-down the engine automatically in the occurrence of an alarm. The alarms are identified by a group of LEDs displaying only the first occurring one. The alarm checking is only enabled after the protection hold-off timer is expired. This timer is set to 45 seconds when the unit is powered up, it resets to 10 seconds if the engine gets running.

The occurrence of below fault conditions will cause the engine to be stopped immediately:

Over speed,

Under speed,

High engine temperature,

Low oil pressure,

Auxiliary shutdown.

If a fault condition occurs, the FUEL solenoid will be deenergized and the led associated with this condition will turn on. Only the first occurring fault will be indicated. To reset the fault condition, turn the switch to the OFF position for a few seconds. The Charge Fail condition is treated as a warning and do not cause the engine to stop. The input monitors the D+ terminal of the charge alternator. The limits for the correct generator frequency are 30 to 57 Hz for 50Hz operation and, 30 to 68Hz for 60Hz operation.

The unit uses high current two part connectors for easy replacement.

INPUTS

DC SUPPLY: 12 or 24 volts DC, (+) and (-) terminals.

L1: Generator phase voltage.

NEUTRAL: Generator neutral terminal.

HIGH TEMP SWITCH: Negative closing switch input.

LOW OIL PRESSURE: Negative closing switch input.

AUX:  Spare  fault  input.  A  negative  supply  connection to this input will cause the engine immediately stopped and  an  alarm  given  (independent  of  the  protection hold-off timer).

CHARGE: Connect  the  charge  alternator’s  D+  end  to this  terminal.  This  terminal  will  supply  the  excitation current  and  measure  the  voltage  of  the  charge alternator.

OUTPUTS

FUEL SOLENOID: 16amps@28V-DC.

START: 16amps@28V-DC.

ALARM: 16amps@28V-DC.

OPTIONS   

STANDARD FEATURES:

50Hz nominal

OPTIONAL FEATURES: (SUBJECT TO SPECIAL ORDER)

60Hz nominal

TECHNICAL SPECIFICATIONS