Woodward easYgen-2000 Series User Manual page 160

Configuration
Configure Monitoring > Engine > Engine/Generator Speed Det...
ID Parameter
2450 Monitoring
2454 Speed/fre‐
quency mis‐
match limit
2455 Delay
2453 Activation fre‐
quency
2451 Alarm class
160
CL Setting range Description
[Default]
2 [On] Monitoring of the speed/frequency/LogicsManager mismatch (n/f/LM mis‐
match) is carried out according to the following parameters.
Off Monitoring is disabled.
2 1.5 to 8.5 Hz The frequency mismatch that is to be monitored is defined here.
[5.0 Hz] If the monitored frequency mismatch reaches or exceeds this value for at
least the delay time without interruption, the action specified by the alarm
class is initiated.
Notes
The LogicsManager is monitored with respect to his status.
2 0.02 to 99.99 s If the monitored frequency mismatch exceeds the threshold value for the
delay time configured here, an alarm will be issued.
[2.00 s]
Notes
If the monitored frequency mismatch falls below the threshold (minus the hys‐
teresis) before the delay expires the time will be reset.
2 15 to 85 Hz The speed/frequency mismatch monitoring is enabled at this generator fre‐
quency.
[20 Hz]
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.
[E]
Notes
For additional information refer to
on page 587
easYgen-2200/2500 | Genset Control
Speed/frequency mismatch (n/f mismatch) is carried
out only if an MPU is connected to the control and
parameter "Speed pickup" (param‐
eter 1600 Ä p. 242), is configured On. The following is
valid:
The measurement via Pickup is enabled (On):
Mismatch monitoring is carried out using the engine
speed from the Pickup and the generator frequency. If
the speed/frequency mismatch or the LogicsManager
is enabled and the frequency is outside of the config‐
ured limit, an alarm will be issued.
The measurement via Pickup is disabled (Off):
Mismatch monitoring is carried out using the generator
frequency and the LogicsManager. If the LogicsMan‐
ager output is enabled and the frequency is outside of
the configured limit, an alarm will be issued.
Ä Chapter 9.5.1 "Alarm Classes"
37535B