Woodward LS-5 v2 Series - Page 130

If the control is con󰈡gured for a clockwise rotation and the voltages into the unit are
calculated as counterclockwise the alarm will be initiated. The direction of con󰈡gured
rotation being monitored by the control unit is displayed on the screen.
If this protective function is triggered, the display indicates "SyB. phase rotation" and the
logical command variable "06.21" will be enabled.
This monitoring function is only enabled if "SyB. voltage measuring" (parameter 1851) is
con󰈡gured to "3Ph 4W" or "3Ph 3W" and the measured voltage exceeds 50 % of the
rated voltage (parameter 1766) or if "SyB. voltage measuring" (parameter 1851) is
con󰈡gured to "1Ph 2W" (in this case, the phase rotation is not evaluated, but de󰈡ned by
the 1Ph2W phase rotation (parameter 1859)).
ID Parameter CL Setting range
[Default]
Description
3950 Monitoring 2 On Phase rotation monitoring is carried
out according to the following
parameters.
[O󰆞] No monitoring is carried out.
3954 SyB. phase rotation 2 [CW] The three-phase measured system B
voltage is rotating CW (clock-wise;
that means the voltage rotates in L1-
L2-L3 direction; standard setting).
CCW The three-phase measured system B
voltage is rotating CCW (counter
clock-wise; that means the voltage
rotates in L1-L3-L2 direction).
3951 Alarm class 2 Class A/B/C/D/E/F/Control
[F]
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 refer to ╚═▷
“9.4.1 Alarm Classes”
3952 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.
The alarm must be acknowledged and
reset by manually pressing the
appropriate buttons or by activating
the LogicsManager output "External
acknowledgement" (via a discrete
input or via an interface).
130 LS-5 v2 Series 37650
4 Con󰈡guration
4.3 Con󰈡gure Monitoring
Released