Woodward LS-5 v2 Series User Manual

appropriate buttons or by activating
the LogicsManager output "External
acknowledgement" (via a discrete
input or via an interface).
2853
2859
Monitoring lockable
(Limit 1/Limit 2)
2 Yes Monitoring for fault conditions is only
performed if "Lock Monitoring Status
24.40" is false.
[No] Monitoring for this fault condition is
continuously enabled regardless of
"Lock Monitoring Status 24.40".
4.3.1.6 System A Underfrequency (Level 1 & 2) ANSI# 81U
General notes
There are two underfrequency alarm levels available in the control. Both alarms are
de󰈡nite time alarms and are illustrated in the 󰈡gure below. The 󰈡gure diagrams a
frequency trend and the associated pickup times and length of the alarms. Monitoring of
the frequency is performed in two steps.
If this protective function is triggered, the display indicates "SyA. underfrequency 1" or
"SyA. underfrequency 2" and the logical command variable "07.08" or "07.09" will be
enabled.
Refer to ╚═▷ “9.1.1 Triggering Characteristics” for the triggering characteristic of this
monitoring function.
The system A underfrequency Level 2 limit
con󰈡guration parameters are located below
the "SyA. decoupling" function menu on the display.
ID Parameter CL Setting range
[Default]
Description
2900
2906
Monitoring
(Limit 1/Limit 2)
2 [On] Underfrequency monitoring is carried
out according to the following
parameters. Monitoring is performed
at two levels. Both values may be
con󰈡gured independent from each
other (prerequisite: Level 1 limit
> limit 2).
O󰈠 Monitoring is disabled for Level 1 limit
and/or Level 2 limit.
2904
2910
Limit
(Limit 1/Limit 2)
2 50.0 to 130.0 %
2904: [99.6 %]
2910: [98.0 %]
The percentage values that are to be
monitored for each threshold limit are
de󰈡ned here.
If this value is reached or exceeded
for at least the delay time without
interruption, the action speci󰈡ed by
the alarm class is initiated.
Notes
105LS-5 v2 Series37650
4 Con󰈡guration
4.3 Con󰈡gure Monitoring
Released

Woodward LS-5 v2 Series Specifications

General

Brand	Woodward
Model	LS-5 v2 Series
Category	Controller
Language	English