Conversion Factors - Woodward easYgen-2000 Series User Manual

Appendix
Event And Alarm Reference > Conversion Factors
Alarm class Visible in the dis‐
play
Shutdown Alarm With this alarm the GCB is opened and the engine is stopped. Coasting occurs.
n
Alarm text + flashing LED "Alarm" + Relay centralized alarm (horn) + GCB open + Coasting + Engine stop.
E Yes
Shutdown Alarm With this alarm the GCB is opened immediately and the engine is stopped.
n Alarm text + flashing LED "Alarm" + Relay centralized alarm (horn) + GCB open + Engine stop.
F Yes
Shutdown Alarm With this alarm the GCB is opened immediately and the engine is stopped.
n
Alarm text + flashing LED "Alarm" + Relay centralized alarm (horn) + GCB open + Engine stop.
Control 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.
9.5.2

Conversion Factors

Temperature
Pressure
588
LED "Alarm" Relay "Command:
open GCB"
& horn
Yes Soft unloading
Yes Immediately
No No
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
ured to "F" (parameter
If an alarm has been configured with a shutdown alarm that has
been enabled to self-acknowledge, and has been configured as
engine delayed the following scenario may happen:
The alarm shuts down the engine because of its alarm class.
n
Due to the engine stopping, all engine delayed alarms are
n
ignored.
The alarm class is acknowledged automatically.
n
The alarm will self-acknowledge and clear the fault message
n
that shut the engine down.
This prevents the fault from being analyzed. After a short
delay, the engine will restart.
After the engine monitoring delay expires, the fault that origi‐
n
nally shut down the engine will do so again.
This cycle will continue to repeat until corrected.
°C → °F
°F → °C
bar → psi
psi → bar
easYgen-2200/2500 | Genset Control
Shut-down engine
Immediately
Immediately
No
2600 Ä p. 169) with the alarm class config‐
2601 Ä p. 169).
T [°F] = (T [°C] x 1.8) + 32
T [°C] = (T [°F] – 32) / 1.8
P [psi] = P [bar] x 14.503
P [bar] = P [psi] / 14.503
Engine blocked
until ack.
sequence has
been performed
Yes
Yes
No
37535B