Woodward LS-5 v2 Series - System B Operating Voltage; Frequency

1770 SyB. voltage monitoring 2 The unit can either monitor the phase-
neutral (wye) voltages or the phase-
phase (delta) voltages.
If the controller is used in a
compensated or isolated network,
voltage protection monitoring should
be con󰈡gured as phase-neutral to
prevent earth-faults resulting in
tripping of the voltage protections.
[Phase - phase] The phase-phase voltage will be
monitored and all subsequent
parameters concerning voltage
monitoring "system B" are referred to
this value (VL-L).
Phase - neutral The phase-neutral voltage will be
monitored and all subsequent
parameters concerning voltage
monitoring "system B" are referred to
this value (VL-N).
Notes
WARNING: This parameter in󰈢uences
the protective functions.
4.3.2.1
System B Operating Voltage / Frequency
General notes
The operating voltage/frequency parameters are used to check if the values are in range
when performing a dead bus closure and synchronization.
It is recommended to con󰈡gure the operating limits within the monitoring limits.
ID Parameter CL Setting range
[Default]
Description
5800 Upper voltage limit 2 100 to 150 %
[110 %]
The maximum permissible positive
deviation of the system B voltage
from the system B rated voltage
(parameter 1768) is con󰈡gured here.
This value may be used as a voltage
limit switch. The conditional state of
this switch may be used as a
command variable for the
LogicsManager (02.03).
5801 Lower voltage limit 2 50 to 100 %
[90 %]
The maximum permissible negative
deviation of the system B voltage
from the system B rated voltage
(parameter 1768) is con󰈡gured here.
This value may be used as a voltage
limit switch. The conditional state of
this switch may be used as a
command variable for the
LogicsManager (02.03).
128 LS-5 v2 Series 37650
4 Con󰈡guration
4.3 Con󰈡gure Monitoring
Released