Engine Underspeed (Level 1 & 2) - Woodward easYgen-2000 Series User Manual

Configuration
Configure Monitoring > Engine > Engine Underspeed (Level 1...
ID Parameter
2103 Delayed by
engine speed
2109
4.4.3.2 Engine Underspeed (Level 1 & 2)
General notes
ID Parameter
2150 Monitoring
2156
2154 Limit
2160
2155 Delay
2161
2151 Alarm class
2157
158
CL Setting range Description
[Default]
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.
The speed measured by the magnetic pickup unit (MPU) is moni‐
tored for underspeed. If the MPU is disabled, the speed may only
be monitored using the generator underfrequency monitoring. If the
MPU speed falls below the underspeed limits the configured
alarms will be initiated.
Refer to
for the triggering characteristic of this monitoring function.
CL Setting range Description
[Default]
2 [On] Underspeed monitoring is carried out according to the following parameters.
Monitoring is performed at two levels. Both values may be configured inde‐
pendent from each other (prerequisite: Level 1 > Level 2).
Off Monitoring is disabled for Level 1 limit and/or Level 2 limit.
2 0 to 9999 rpm The percentage values that are to be monitored for each threshold limit are
defined here.
2154: [1,300.0
rpm] If this value is reached or exceeded for at least the delay time without inter‐
ruption, the action specified by the alarm class is initiated.
2160: [1,250.0
rpm]
2 0.02 to 99.99 s If the monitored engine speed falls below the threshold value for the delay
time configured here, an alarm will be issued.
2155: [1.00 s]
2161: [0.10 s]
Notes
If the monitored engine speed exceeds the threshold (plus the hysteresis)
again 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.
2151: [B]
2157: [F]
easYgen-2200/2500 | Genset Control
3315 Ä p. 239) must expire prior to fault monitoring being enabled for
If this protective function is triggered, the display indi‐
cates "Underspeed 1" or "Underspeed 2" and the log‐
ical command variable "05.03" or "05.04" will be ena‐
bled.
Ä Chapter 9.1.1 "Triggering Characteristics" on page 481
37535B