ABB Relion 650 Series Technical Manual page 71

1MRK 506 326-UUS B
Activating
signal GREEN
Activating
signal RED
LED
Reset
IEC09000316 V1 EN-US
Figure 22: Operating sequence 5, two colors
Sequence 6 (LatchedReset-S)
In this mode all activated LEDs, which are set to sequence 6 (LatchedReset-S), are automatically
reset at a new disturbance when activating any input signal for other LEDs set to sequence 6
(LatchedReset-S). Also in this case indications that are still activated will not be affected by
manual reset, that is, immediately after the positive edge of that the manual reset has been
executed a new reading and storing of active signals is performed. LEDs set for sequence 6 are
completely independent in its operation of LEDs set for other sequences.
Timing diagram for sequence 6
Figure 23
Activating
signal 1
Activating
signal 2
LED 1
LED 2
Automatic
reset
Manual
reset
IEC01000239 V2 EN-US
Figure 23: Operating sequence 6 (LatchedReset-S), two indications within same disturbance
Figure 24
Line distance protection REL650
Technical manual
R
shows the timing diagram for two indications within one disturbance.
Disturbance
shows the timing diagram for a new indication after
© Copyright 2011 ABB Power Grids. All rights reserved
G
IEC09000316_1_en.vsd
tRestart
IEC01000239_2-en.vsd
tRestart time has elapsed.
Section 4
Local Human-Machine-Interface LHMI
SEMOD56072-75 v3
SEMOD56072-86 v3
65