BP internal signal
Designation of binary output
signal
Description
Delay 4
211830_DIST Delay 4
Signal for starting in Zone 4 (excepting
when Zone 4 is being used as an
overreaching zone).
Delay Def
211835_DIST Delay Def
Signal for starting in the final zone.
Meas Main
211840_DIST Meas Main
Measurement by the distance function
(Zones 1, 2, 3, 4 or the final zone).
Meas Oreach
211845_DIST Meas Oreach
Measurement in the distance protection
overreach zone.
Meas Fward
211850_DIST Meas Fward
Measurement by the distance protection in
the forwards direction.
Meas Bward
211855_DIST Meas Bward
Measurement by the distance protection in
the reverse direction (reverse zone).
Weak Infeed
211860_DIST Weak Infeed
Tripping by the ‘weak infeed’ function.
Power Swing
211865_DIST Power Swing
Power-swing blocking function picked up.
VTSup
211870_DIST VT Sup
VT supervision picked up.
VTSup Delay
211875_DIST VT Sup Delay
Delayed operation of the VT supervision
after 12 s.
Com Send
211880_DIST Com Send
Signal generated when a transfer trip signal
is transmitted.
Com Boost
211885_DIST Com Boost
Signal for boosting PLC transmitting power.
Freq dev
211890_DIST Freq Dev
Signal indicating a deviation of the memory
voltage frequency.
Table 23: BU_OCDT output signals
BP internal signal
Designation of binary output
signal
Description
Trip
212105_OCDT TRIP
Trip signal
Start
212705_OCDT Start
Start signal
Table 24: BU_OCINV output signals
BP internal signal
Designation of binary output
signal
Description
Trip
213105_OCINV TRIP
Trip signal
Start
213705_OCINV Start
Start signal
Table 25: BU_DIROCDT output signals
BP internal signal
Designation of binary output
signal
Description
Trip
214105_DIROCDT TRIP
Trip signal
Start
214705_DIROCDT Start
Start signal
Start L1
214710_DIROCDT Start L1
L1 phase start signal
Start L2
214715_DIROCDT Start L2
L2 phase start signal
Table continues on next page
1MRK 505 406-UEN B
Section 3
Signals
Bay protection functions REB500
19
Technical manual
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