Woodward easYgen-2000 Series User Manual page 128

Configuration
Configure Monitoring > Generator > Generator Phase Rotation
ID Parameter
3950 Monitoring
3954 Generator
phase rotation
3951 Alarm class
3952 Self acknowl‐
edge
3953 Delayed by
engine speed
128
CL Setting range Description
[Default]
2 [On] Phase rotation monitoring is carried out according to the following parame‐
ters.
Off No monitoring is carried out.
2 [CW] The three-phase measured generator voltage is rotating CW (clock-wise; that
means the voltage rotates in L1-L2-L3 direction; standard setting).
CCW The three-phase measured generator voltage is rotating CCW (counter clock-
wise; that means the voltage rotates in L1-L3-L2 direction).
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.
[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.
easYgen-2200/2500 | Genset Control
The direction of configured rotation being monitored by
the control unit is displayed on the screen.
If this protective function is triggered, the display indi‐
cates "Gen.ph.rot. mismatch" and the logical command
variable "06.21" will be enabled.
This monitoring function is only enabled if Generator
voltage measuring (parameter
ured to "3Ph 4W" or "3Ph 3W" and the measured
voltage exceeds 50 % of the rated voltage (param‐
eter 1766 Ä p. 95) or if Generator voltage measuring
(parameter 1851 Ä p.
(in this case, the phase rotation is not evaluated, but
defined by the 1Ph2W phase rotation (param‐
eter 1859 Ä p. 96)).
Ä Chapter 9.5.1 "Alarm Classes"
3315 Ä p. 239) must expire prior to fault monitoring being enabled for
1851 Ä p. 96) is config‐
96) is configured to "1Ph 2W"
37535B