Protections And Alarms - Datakom D-500 MK2 User Manual

D-500 MK2 User Manual

15. PROTECTIONS AND ALARMS

The unit provides 3 different protection levels, being warnings, loaddumps and shutdown alarms.
1- SHUTDOWN ALARMS: These are the most important fault conditions and cause:
The ALARM led to turn on steadily,
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- The genset contactor to be released immediately,
- The engine to be stopped immediately,
The Alarm digital output to operate.
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2- LOAD_DUMPS: These fault conditions come from electrical trips and cause:
The ALARM led to turn on steadily,
-
- The genset contactor to be released immediately,
- The engine to be stopped after Cooldown period,
The Alarm digital output to operate.
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3- WARNINGS: These conditions cause:
- The WARNING led to turn on steadily,
- The Alarm digital output to operate.
Alarms operate in a first occurring basis:
-If a shutdown alarm is present, following shutdown alarms, loaddumps and warnings will not be accepted,
-If a loaddump is present, following loaddumps and warnings will not be accepted,
-If a warning is present, following warnings will not be accepted.
Alarms may be of LATCHING type following programming.
For latching alarms, even if the alarm condition is removed, the alarms will stay on and disable the operation
of the genset.
Existing alarms may be canceled by pressing one of the
operating mode buttons:
Most of the alarms have programmable trip levels. See the programming chapter for adjustable alarm limits.
If a fault condition occurs, the display will automatically
switch to the ALARM LIST page.
If the ALARM MUTE button is pressed, the Alarm
output will be deactivated; however the existing
alarms will persist and disable the operation of the
genset.
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Firmware V-6.3