DKG-329 User Manual V-12 (09.10.2012)
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STOP FAIL (warning): Set if the engine has not stopped before the expiration of the Stop Timer.
OVERLOAD (load_dump): Set if at least one of the genset phase currents goes over the Overcurrent
Limit for Overload Timer. If currents goes below the limit before expiration of the timer then no alarm will
be set.
EXCESS POWER (load_dump): Set if the genset power (kW) supplied to the load goes over the Excess
Power limit for Overload Timer. If the power goes below the limit before expiration of the timer then no
alarm will be set.
GENSET LOW VOLTAGE: Set if any of the generator phase voltages goes outside programmed limits for
Overload Timer. This fault will be monitored with holdoff timer delay after the engine is running.
GENSET HIGH VOLTAGE: Set if any of the generator phase voltages goes outside programmed limits for
Overload Timer. This fault will be monitored with holdoff timer delay after the engine is running.
LOW BATTERY VOLTAGE (warning): Set if the battery voltage goes below the programmed limit.
HIGH BATTERY VOLTAGE: Set if the battery voltage goes above programmed limits. Both warning and
alarm levels for high battery voltage are programmable.
MAINS PHASE ORDER FAIL (warning): Set if the mains phase order checking is enabled, mains phases
are present and mains phase order is reversed. This fault prevents the Mains Contactor to close.
The modes of operation are selected by pushing the front panel keys. Changing the operation
mode while the genset is running will result to a behavior suitable for the new operating mode. For example,
if the LOAD TEST mode is selected when genset is running at TEST mode, then the load will be transferred
to the genset.
OFF: In this mode, the mains contactor will be energized if mains phase voltages are within the
programmed limits. The engine will be stopped.
AUTO: It is used for genset and mains automatic transfer. If at least one of the mains phase voltages is
outside limits, the mains contactor will be deactivated and the REMOTE START output will be activated at
the end of the start wait period. The engine will run without load during engine heating period. After this, if
alternator phase voltages and frequency are within limits, then the unit will wait for the generator contactor
period and the generator contactor will be energized.
When all the mains phase voltages are within the limits, the engine will continue to run for the mains waiting
period. At the end of this period the generator contactor is deactivated and the mains contactor will be
energized. If a cooling period is given, the REMOTE START output will be active during the cooling period.
At the end of the period, the REMOTE START output will be de-energized and the diesel will stop. The unit
will be ready for the next mains failure. If the operation of the genset is disabled by the weekly schedule,
then the AUTO led will flash, and the operation of the genset will be as in the OFF mode.
TEST: It is used to test the generator when the mains are on, or keep the generator running in the
emergency backup mode. The operation of the generator is similar to the AUTO mode, but the mains
contactor will not be deactivated if the mains are not off. If the mains are off, mains contactor will be
deactivated and the generator contactor will be activated. When the mains are on again, a changeover to
the mains will be made, but the engine will be kept running unless another mode is selected. To stop the
engine, select AUTO or OFF mode.
LOAD TEST: It is used to test the genset under load. Once this mode is selected, the engine will run and
the load will be transferred to the genset. The genset will feed the load indefinitely unless another mode is
selected.
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