
Function name
Signal type
Signal name
Description
TR2PTDF.1.BLKD5H
Status from 5th harmonic
restraint blocking, combined
TR2PTDF.1.BLKDWAV
Status from waveform blocking,
combined
TR2PTDF.1.OPR_HS
Operate signal from high set
(instantaneous) stage
TR2PTDF.1.OPR_LS
Operate signal from low set
(biased) stage
TR2PTDF.1.BLKD2H_A
Status from 2nd harmonic
restraint block, phase A
TR2PTDF.1.BLKD2H_B
Status from 2nd harmonic
restraint block, phase B
TR2PTDF.1.BLKD2H_C
Status from 2nd harmonic
restraint block, phase C
TR2PTDF.1.BLKD5H_A
Status from 5th harmonic
restraint blocking, phase A
TR2PTDF.1.BLKD5H_B
Status from 5th harmonic
restraint blocking, phase B
TR2PTDF.1.BLKD5H_C
Status from 5th harmonic
restraint blocking, phase C
TR2PTDF.1.BLKDWAV_A
Status from waveform blocking,
phase A
TR2PTDF.1.BLKDWAV_B
Status from waveform blocking,
phase B
TR2PTDF.1.BLKDWAV_C
Status from waveform blocking,
phase C
Three-phase thermal overload
for transformers (T2PTTR)
Binary inputs
T2PTTR.1.BLK_CLOSE
Thermal overload indicator. To
inhibit reclose.
T2PTTR.1.ALARM
The calculated temperature is
over Alarm level Temperature
limit
T2PTTR.1.START
Signal indicating current that
will raise temperature above
operate level if prolonged
T2PTTR.1.OPERATE
Operate signal
Three-phase thermal overload
for motors (MPTTR)
Binary inputs
MPTTR.1.BLK_RESTART
Thermal overload indicator, to
inhibit restart
MPTTR.1.ALARM
Alarm signal when thermal load
exceeds alarm setting
MPTTR.1.OPERATE
Operate signal when thermal
load exceeds operate setting
Stabilised restricted earth-fault
(LREFPNDF)
Binary inputs
LREFPNDF.1.START
Low impedance restricted earth-
fault protection start
LREFPNDF.1.OPERATE
Low impedance restricted earth-
fault protection operate
LREFPNDF.1.BLK2H
Signal to indicate second
harmonic blocking when the
second harmonic has been
enabled
Emergency start (ESMGAPC)
Binary inputs
ESMGAPC.1.ST_EMERG_ENA
Emergency start signal
Table continues on next page
Section 2
1MRS756791 A
DNP3 data mappings
38
630 series
Point List Manual