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Alarm class
Visible in the
display
LED "Alarm"
& horn
Relay
"Command:
open GCB"
Shut-down
engine
Engine blocked
until ack.
sequence has
been
performed
A
Yes
No
No
No
No
Warning Alarm
This alarm does not interrupt the unit operation. A message output without a centralized alarm
occurs:
• Alarm text.
•
B
Yes
Yes
No
No
No
Warning Alarm
This alarm does not interrupt the unit operation. An output of the centralized alarm occurs and the
command variable 3.05 (horn) is issued.
• Alarm text + flashing LED "Alarm" + Relay centralized alarm (horn).
•
C
Yes
Yes
Soft unloading
Cool down time
Yes
Shutdown Alarm
With this alarm the GCB is opened and the engine is stopped. Coasting occurs.
• Alarm text + flashing LED "Alarm" + Relay centralized alarm (horn) + GCB open + Co
•
Engine stop.
D
Yes
Yes
Immediately
Cool down time
Yes
Shutdown Alarm
With this alarm the GCB is opened and the engine is stopped. Coasting occurs.
• Alarm text + flashing LED "Alarm" + Relay centralized alarm (horn) + GCB open + Co
•
Engine stop.
E
Yes
Yes
Soft unloading
Immediately
Yes
Shutdown Alarm
With this alarm the GCB is opened immediately and the engine is stopped.
• Alarm text + flashing LED "Alarm" + Relay centralized alarm (horn) + GCB open + Engine stop.
•
F
Yes
Yes
Immediately
Immediately
Yes
Shutdown Alarm
With this alarm the GCB is opened immediately and the engine is stopped.
• Alarm text + flashing LED "Alarm" + Relay centralized alarm (horn) + GCB open + Engine stop.
•
Control
No
No
No
No
No
Control Signal
This signal issues a control command only. It may be assigned to a discrete input for example to get a
control signal, which may be used in the LogicsManager. No alarm message and no entry in the alarm
list or the event history will be issued. This signal is always self-acknowledging, but considers a delay
time and may also be configured with an engine delay.
In manual mode all stopping alarms are without cool down.
CAUTION!
If an alarm of class C, D, or E is present and the GCB cannot be opened, the engine will
not be stopped. This can only be achieved by enabling GCB monitoring (parameter
) with the alarm class configured to "F" (parameter
1178
easYgen-3000XT Series
B37574
9 Appendix
9.5.4 Alarm Classes
Released