Woodward easYgen-3000XT Series, Manual, Page: 471 / 1205

ID Parameter CL Setting range
[Default]
Description
If the monitored engine speed
exceeds the threshold (plus the
hysteresis) again before the delay
expires the time will be reset.
2151
2157
Alarm class 2 Class A, Class B, Class C, Class D,
Class E, Class F , Control
2151: [Class B]
2157: [Class F]
Each limit may be assigned an
independent alarm class that
specifies what action should be
taken when the limit is surpassed.
Notes
For additional information refer to
╚═▷ “9.5.4 Alarm Classes”
2152
2158
Self acknowledge 2
4
Yes The control unit automatically
clears the alarm if the fault
condition is no longer detected.
[No] The control unit does not
automatically reset the alarm
when the fault condition is no
longer detected.
The alarm must be acknowledged
and reset by manually pressing
the appropriate buttons or by
activating the LogicsManager
output "External
acknowledgment" (via a discrete
input or via an interface).
2153
2159
Enabled 2
4
Always Monitoring for this fault condition
is continuously enabled.
[87.70 LM:Eng.mon] Monitoring for fault conditions is
not performed until engine
monitoring is enabled. This is
determined through the
LogicsManager equation "Release
engine monitoring".
For xx = 1 to 32:
96.{xx}
LM: Flag{xx}
The monitoring is executed, if the
LogicsManager "Flag {xx}" is
TRUE.
Example:
96.01 LM: Flag 1, 96.02 LM: Flag
2, ..., 96.32 LM: Flag 32
4.5.2.3 Engine/Generator Speed Detection
General notes
Speed detection checks if the generator voltage frequency f (determined from the
measured generator voltage) differs from the measured engine speed n (determined from
the Pickup signal or the speed measured via ECU/J1939) and determines a difference (Δf-
n).
If the two frequencies are not identical (Δf-n ≠ 0) and the monitored frequency mismatch
reaches or exceeds the threshold, an alarm is output. Additionally the LogicsManager
output "Firing speed" is checked upon its logical status with respect to the measuring
values "generator frequency" and "Pickup speed".
471 easYgen-3000XT Series B37574
4 Configuration
4.5.2.3 Engine/Generator Speed Detection
Released