Name Type Default Description
BLOCK_LS BOOLEAN 0=False Signal for blocking
the stab. stage
ENA_MULT_HS BOOLEAN 0=False Enables the high
stage multiplier
LNPLDF Output signals
Table 648: LNPLDF Output signals
Name Type Description
OPERATE BOOLEAN Operate, local or remote,
stabilized or instantaneous
stage
START BOOLEAN Start, local or remote
STR_LS_LOC BOOLEAN Start stabilized stage local
STR_LS_REM BOOLEAN Start stabilized stage remote
OPR_LS_LOC BOOLEAN Operate stabilized stage local
OPR_LS_REM BOOLEAN Operate stabilized stage re-
mote
OPR_HS_LOC BOOLEAN Operate instantaneous stage
local
OPR_HS_REM BOOLEAN Operate instantaneous stage
remote
BLKD2H_LOC BOOLEAN Restraint due 2nd harmonics
detected local
BLKD2H_REM BOOLEAN Restraint due 2nd harmonics
detected remote
PRO_ACTIVE BOOLEAN Status of the protection, true
when function is operative
4.3.1.9 LNPLDF Settings
Table 649: LNPLDF Group settings (Basic)
Parameter
Values (Range) Unit Step Default Description
Low operate value 10...200 %Ir 1 10 Basic setting for
the stabilized stage
start
High operate value 200...4000 %Ir 1 2000 Instantaneous
stage operate value
Start value 2.H 10...50 % 1 20 The ratio of the
2. harmonic com-
ponent to funda-
mental component
required for block-
ing
High Op value Mult 0.5...1.0 0.1 1.0 Multiplier for scal-
ing the high stage
operate value
Table continues on the next page
Protection functions 1MRS759142 F
676 REX640
Technical Manual
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