Loaddump Alarms - Datakom D-500 MK2 User Manual

D-500 MK2 User Manual

15.4. LOADDUMP ALARMS

Digital input and analog sender alarms are fully programmable
for the alarm name, sampling and action.
Only internal alarms are explained in this section.
VOLTAGE UNBALANCE
CURRENT UNBALANCE
OVERCURRENT
OVERLOAD
REVERSE POWER
GENSET PHASE ORDER
FAIL
MAINS CB FAIL TO
OPEN
GENSET CB FAIL TO
CLOSE
PICKUP SIGNAL LOST
SERVICE REQUEST
UNIT LOCKED
UNKNOWN TOPOLOGY
Excitation Lost
Set if any of the generator phase voltages differs from the average by more
than Voltage Unbalance Limit for Voltage Fail Timer. This fault will be
monitored with Fault Holdoff Timer delay after the engine is running.
Set if any of the generator phase currents differs from the average by more
than Voltage Unbalance Limit for Voltage Fail Timer. This fault will be
monitored with Fault Holdoff Timer delay after the engine is running. The
action taken at fault condition is programmable.
Set if at least one of the genset phase currents goes over the Overcurrent
Limit for the period allowed by the IDMT curve setting. The allowed timer is
dependent of the overcurrent level. If currents go below the limit before
expiration of the timer then no alarm will be set. Please check chapter
Overcurrent Protection (IDMT) for more details. The action taken at fault
condition is programmable.
Set if the genset power (kW) supplied to the load goes over the Overload
Load Dump limit for Overload Timer. If the power goes below the limit
before expiration of the timer then no alarm will be set.
Set if the genset power (kW) is negative and goes over the Reverse Power
limit for Reverse Power Timer. If the power goes below the limit before
expiration of the timer then no alarm will be set.
Set if the fault is enabled and the genset phase order is reverse.
Set if the feedback input is defined and the related contactor block
feedback signal is not detected after the expiration of Contactor
Open/Close Fail Timer.
Set if the feedback input is defined and the related contactor block
feedback signal is not detected after the expiration of Contactor
Open/Close Fail Timer.
Set if the rpm measured from the magnetic pickup input falls below the
Crank Cut RPM level during Loss of Speed Signal Timer. The action of
signal loss is programmable.
Set if at least one of the service counters has expired. In order to reset the
service counters please hold pressed both with
5 seconds. The screen will display "Completed!"
Set if the controller is remotely locked.
Set if the automatic topology determination is active, and the topology
cannot be determined during "holdoff timer" after the engine runs.
Set if the AVR control output has gone to the low or high limit when the
genset is on load.
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Firmware V-6.3
and buttons during