CEA7 CONTROL UNIT ALARMS | PAGE 38
HIGH WATER TEMPERATURE BY SENSOR
The CEA7 control unit's high water temperature by sensor alarm is associated
with the analogue input for the water temperature (T). The high water temperature
by sensor alarm is activated when a higher temperature is detected than the
programmed limit (Thresholds table, parameter 27).
Detection of the high water temperature alarm by sensor is set by default (Alarms
table, parameter 49) to be activated: Always.
A high water temperature by sensor alarm can be associated a debounce time
(Alarms table, parameter 50) during which it must be detected that the water
temperature is above the limit set (Thresholds table, parameter 27).
The high water temperature by sensor alarm is set by default (Alarms table,
parameter 51) to perform no action (warning).
LOW OIL PRESSURE BY SENSOR
The CEA7 control unit's low oil pressure by sensor alarm is associated with the
analogue input for the oil pressure (T). The low oil pressure by sensor alarm is
activated when lower pressure is detected than the programmed limit (Thresholds
table, parameter 26).
The low oil pressure by sensor alarm is set by default (Alarms table, parameter
52) to be activated when it is detected that the engine has been started.
A low oil pressure alarm can be associated a debounce time (Alarms table,
parameter 53) during which it must be detected that the oil pressure is below the
limit set (Thresholds table, parameter 26).
The low oil pressure alarm is set by default (Alarms table, parameter 54) to
perform no action (warning).
REVERSE POWER
The CEA7 control unit's reverse power alarm is activated when the measured
power (both for the network and genset) is negative and above a certain %
(Thresholds table, parameter 10) of nominal power (Thresholds table, parameter
9).
Sometimes the reverse power alarm may be due to the incorrect wiring of the
current transformers.
Detection of the reverse power alarm is set by default (Alarms table, parameter
43) to be activated under nominal engine conditions.
A reverse power alarm can be associated a debounce time (Alarms table,
parameter 44) during which the power measured must be outside the
programmed limit.
The reverse power alarm is set by default (Alarms table, parameter 45) to perform
a stop of the engine with cooling.
LOW BATTERY VOLTAGE
The CEA7 control unit's low battery voltage alarm is activated when the battery
voltage measured falls below a set limit (Thresholds table, parameter 17).
Detection of the low battery voltage alarm is set by default (Alarms table,
parameter 46) to be activated: Always.
A low battery voltage alarm can be associated a debounce time (Alarms table,
parameter 47) during which it must be detected that the battery voltage is below
the limit set (Thresholds table, parameter 17).
The low battery voltage alarm is set by default (Alarms table, parameter 48) to
perform no action (warning).
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