DKG-103 AUTOMATIC MAINS FAILURE UNIT
FEATURES
Microprocessor controlled,
Automatic engine starting and stopping,
Automatic load transfer,
Automatic shutdown on fault condition,
Survive cranking dropouts,
Operation in Automatic, Test and Off modes,
Low cost,
Small dimensions,
High power relay outputs,
Emergency backup operation,
Different models for 12V and 24V battery systems,
3 Phase mains voltage monitoring,
Alternator phase monitoring,
Digital alternator frequency display,
Overspeed and underspeed protection,
Low oil pressure protection,
High engine temperature protection,
Dust proof,
Vibration proof,
Two part connectors for easy replacement,
Low failure rate,
103_TANE.doc
DESCRIPTION INPUTS
The DATAKOM model DKG-103 automatic LOW OIL PRESSURE: negative closing switch
start unit is a microprocessor based low cost input.
digital unit offering all functions needed for HIGH TEMP SWITCH: negative closing switch
automatic control of a genset. input.
The unit is housed in a metal chassis with EMERGENCY STOP SWITCH: negative closing
polycarbonate front panel. switch input.
In automatic mode, the unit monitors 3 phases DC SUPPLY: 12 or 24 volts DC, (+) and (-)
of the mains voltage and controls the automatic terminals.
starting, stopping and load transfer of the R-S-T: 3 phase mains voltages.
generator. Once the generator is running the G: Generator phase voltage.
device monitors the internal protections and NEUTRAL: Mains and generator neutral
external fault inputs. terminal.
Thanks to its 30 Amp relay outputs, the unit
needs no extra relay in the control panel.
As the device needs no programming process,
TECHNICAL SPECIFICATIONS
it is easy to use and has a very low rate of Overspeed : 57Hz
failure. Underspeed : 30Hz
The unit has different models for 12 Volt and Multi attempts to start : 3 attempts
24 Volt gensets. Start delay : 3 secs
Crank time : 6 secs
MODES OF OPERATION Rest time : 10 secs
Crank disconnect : 10Hz
OFF: Mains contactor will be energized if AC Return time: 30 secs
mains are present. Run on: 90 secs
AUTOMATIC: The unit monitors the 3 phases
of the mains and will start the generator and Operating temperature: -10 to +70 degrees C.
control the changeover of mains and generator Relative humidity: %10 to %90.
contactors if a mains failure on any phase is DC Supply:
detected. When the mains are restored, the unit DKG-103/12V: 9 to 18 volts.
transfers the load and stops the engine. 4.0-18 V while cranking
TEST: The unit will start the generator without DKG-103/24V: 18 to 33 volts
a mains failure, but the load will not be 8.0-33 V while cranking
transferred until a mains failure occurs. (Also Power consumption: 1W average, 5W max.
called EMERGENCY BACKUP mode) Dimensions: 153 x 120 x 40mm (WxHxD)
Mounting hole dimensions:
142x96 mm minimum.
OUTPUTS Weight: 700g (approx.)
FUEL: Positive output relay used to control the
fuel solenoid. (30A / 28V)
START: Positive output relay used to control
the engine starter solenoid. (30A / 28V)
ALARM: Positive output relay activated by any
alarm condition. (5A / 28V) This output may
also be configured to control a stop solenoid or
a preheat output.
GENERATOR CONTACTOR: Outputs the DATAKOM Electronics Limited
alternator phase voltage to energize the
generator contactor. (5A / 250V-AC) Tel : +90-216-466 84 60
MAINS CONTACTOR: Outputs the mains phase
Fax : +90-216-364 65 65
voltage to energize the mains contactor.
(5A / 250V-AC) e-mail : datakom@datakom.com.tr
http: www.datakom.com.tr
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