Woodward LS-5 v2 Series - Page 101

ID Parameter CL Setting range
[Default]
Description
3053 Monitoring 2 [1- and 3-phase] During single-phase voltage phase/
vector shift monitoring, tripping
occurs if the phase/vector shift
exceeds the con󰈡gured threshold
value (parameter 3054) in at least one
of the three phases.
3-phase During three-phase voltage phase/
vector shift monitoring, tripping
occurs only if the phase/vector shift
exceeds the speci󰈡ed threshold value
(parameter 3055) in all three phases
within 2 cycles.
Notes
If a phase/vector shift occurs in one or
two phases, the single-phase
threshold value (parameter 3054) is
taken into consideration; if a phase/
vector shift occurs in all three phases,
the three-phase threshold value
(parameter 3055) is taken into
consideration.
Single phase monitoring is very
sensitive and may lead to nuisance
tripping if the selected phase angle
settings are too small.
3054 Limit 1-phase 2 3 to 30°
[20°]
If the electrical angle of the voltage
shifts more than this con󰈡gured value
in any single phase, an alarm with the
class con󰈡gured in parameter 3051 is
initiated. The decoupling procedure
will open the CBA.
3055 Limit 3-phase 2 3 to 30°
[8°]
If the electrical angle of the voltage
shifts more than this con󰈡gured value
in all three phases, an alarm with the
class con󰈡gured in parameter 3051 is
initiated. The decoupling procedure
will open the CBA.
3051 Alarm class 2 A/B/C/D/E/F/Control
[B]
Each limit may be assigned an
independent alarm class that speci󰈡es
what action should be taken when the
limit is surpassed.
Notes
For additional information see ╚═▷
“9.4.1 Alarm Classes”.
3052 Self acknowledge 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 condition is no longer
detected.
101LS-5 v2 Series37650
4 Con󰈡guration
4.3 Con󰈡gure Monitoring
Released