Woodward easYgen-3000XT Series, Руководство пользователя, Страница: 453 / 1205

ID Parameter CL Setting range
[Default]
Description
time configured here, an alarm
will be issued.
Notes
If the monitored active power
mismatch falls below the
threshold (minus the hysteresis)
before the delay expires the time
will be reset.
2921 Alarm class 2 Class A, Class B, Class C, Class D,
Class E, Class F , Control
[Class B]
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”
2922 Self acknowledge 2 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).
4.5.1.5.7 Engine/Generator Unloading Mismatch
General notes
This monitoring function is always enabled and becomes active when a stop command is
issued. Following a stop command, the controller tries to reduce the power before
opening the GCB. If the power falls below the unload limit (parameter
╚═▷ 3125 ) before
the delay (parameter ╚═▷ 3123 ) expires, a "GCB open" command will be issued. If the
controller fails to reduce the power to fall below the unload limit (parameter ╚═▷ 3125 )
before the delay (parameter ╚═▷ 3123 ) expires, a "GCB open" command will be issued
together with an alarm.
If this protective function is triggered, the display indicates "Gen. unloading fault" and
the logical command variable "06.30" will be enabled.
453 easYgen-3000XT Series B37574
4 Configuration
4.5.1.5.7 Engine/Generator Unloading Mismatch
Released