Generator Undervoltage (Level 1 & 2) Ansi# 27 - Woodward easYgen-2000 Series User Manual

Configuration
Configure Monitoring > Generator > Generator Undervoltage (Le...
ID Parameter
2005 Delay
2011
2001 Alarm class
2007
2002 Self acknowl‐
edge
2008
2003 Delayed by
engine speed
2009
4.4.1.5 Generator Undervoltage (Level 1 & 2) ANSI# 27
General notes
112
CL Setting range Description
[Default]
Notes
This value refers to the System rated frequency (parameter
2 0.02 to 99.99 s If the monitored generator voltage value exceeds the threshold value for the
delay time configured here, an alarm will be issued.
2005: [5.00 s]
2011: [0.30 s]
Notes
If the monitored generator voltage falls below the threshold (minus the hyste‐
resis) before the delay expires the time will be reset.
2 Class A/B/C/D/ Each limit may be assigned an independent alarm class that specifies what
E/F action should be taken when the limit is surpassed.
2001: [B]
2007: [F]
Notes
For additional information refer to
on page 587
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 condi‐
tion is no longer detected.
The alarm must be acknowledged and reset by manually pressing the appro‐
priate buttons or by activating the LogicsManager output "External acknowl‐
edgement" (via a discrete input or via an interface).
2 Yes Monitoring for fault conditions is not performed until engine delayed moni‐
toring is enabled. The engine monitoring delay time (param‐
eter
parameters assigned this delay.
[No] Monitoring for this fault condition is continuously enabled regardless of engine
speed.
Voltage is monitored according to how the parameter "Generator
voltage measuring" (parameter
controller provides the user with two alarm levels for generator
undervoltage. Both alarms are definite time alarms.
Monitoring for undervoltage faults is performed in two steps.
Refer to
for the triggering characteristic of this monitoring function. The dia‐
grams listed there show a frequency trend and the associated
pickup times and length of the alarms.
easYgen-2200/2500 | Genset Control
Ä Chapter 9.5.1 "Alarm Classes"
3315 Ä p. 239) must expire prior to fault monitoring being enabled for
If this protective function is triggered, the display indi‐
cates "Gen. undervoltage 1" or "Gen. undervoltage 2"
and the logical command variable "06.07" or "06.08"
will be enabled.
Ä Chapter 9.1.1 "Triggering Characteristics" on page 481
1766 Ä p.
1851 Ä p. 96) is configured. This
95).
37535B