Basler DECS-250 - Page 186

21-18 9440300990
BESTlogic™Plus DECS-250
Name Description Symbol
PREPOSITION 3
ENABLE
When true, this element informs the unit to
use setpoints for Preposition 3.
PROTECTION
SELECT
SECONDARY
SETTINGS
When true, this element informs the unit to
use secondary values for protection.
PSS SEQ CNTRL
ENABLED
When true, PSS sequence (phase rotation)
control is enabled. (Available when the
controller is equipped with the optional Power
System Stabilizer, style number xPxxxxx)
PSS OUTPUT
DISABLE
When true, this element disables the output of
the PSS. The PSS continues to run, but the
output is not used. (Available when the
controller is equipped with the optional Power
System Stabilizer, style number xPxxxxx)
PSS SEQ CNTRL
SELECTION
When true, phase rotation is selected to be
ACB. False when phase rotation is selected
to be ABC. (Available when the controller is
equipped with the optional Power System
Stabilizer, style number xPxxxxx)
PSS MOTOR When true, the PSS is in motor mode. False
when in generator mode. (Available when the
controller is equipped with the optional Power
System Stabilizer, style number xPxxxxx)
PSS SELECT
SECONDARY
SETTINGS
When true, this element selects secondary
settings for the PSS. (Available when the
controller is equipped with the optional Power
System Stabilizer, style number xPxxxxx)
RAISE ENABLE When true, this element raises the active
setpoint.
REMOTE LVRT FAIL
MODE
This element can be used to toggle the
operating mode (Q(PF) or Hold Value) when
an LVRT Remote Communications Failure
has occurred. When an LVRT Remote
Communications Failure has been detected,
the LVRT Mode during the failure will be
controlled by the Fail Mode Setting and this
logic element. When the LVRT Remote
Control Fail Mode is set to Q(PF), the
operating mode will be Q(PF) and this logic
element has no effect. When the LVRT
Remote Control Fail Mode is set to Hold
Value, this logic element can be used to set
the operating mode during an LVRT Remote
Communications Failure as indicated below:
• When true, the LVRT Remote Control
Failure Mode is set to Hold Output.
• When false, the LVRT Remote Control
Failure Mode is set to Q(PF).