Woodward easYgen-2000 Series User Manual page 110

Configuration
Configure Monitoring > Generator > Generator Underfrequency (...
ID Parameter
1950 Monitoring
1956
1954 Limit
1960
1955 Delay
1961
1951 Alarm class
1957
110
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.
CL Setting range Description
[Default]
2 [On] Underfrequency monitoring is carried out according to the following parame‐
ters. Monitoring is performed at two levels. Both values may be configured
independent from each other (prerequisite: Level 1 limit > limit 2).
Off Monitoring is disabled for Level 1 limit and/or Level 2 limit.
2 50.0 to 130.0 % The percentage values that are to be monitored for each threshold limit are
defined here.
1954: [90.0 %]
If this value is reached or exceeded for at least the delay time without inter‐
1960: [84.0 %]
ruption, the action specified by the alarm class is initiated.
Notes
This value refers to the System rated frequency (parameter
2 0.02 to 99.99 s If the monitored generator frequency value falls below the threshold value for
the delay time configured here, an alarm will be issued.
1955: [5.00 s]
1961: [0.30 s]
Notes
If the monitored generator frequency falls below the threshold (plus 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.
1951: [B]
1957: [F]
Notes
For additional information refer to
on page 587
easYgen-2200/2500 | Genset Control
If this protective function is triggered, the display indi‐
cates "Gen. underfrequency 1" or "Gen. underfre‐
quency 2" and the logical command variable "06.03"
or "06.04" will be enabled.
Ä Chapter 9.1.1 "Triggering Characteristics" on page 481
The parameter limits listed below have identical setting
ranges. Each parameter may be configured with dif‐
ferent settings to create unique trip characteristics for
specific thresholds.
This monitoring function is disabled when the idle
mode (Ä Chapter 4.5.9.4 "Idle Mode" on page 242) is
active.
Ä Chapter 9.5.1 "Alarm Classes"
1750 Ä p. 94).
37535B