ABB Relion 650 Series Technical Manual page 70

Section 4
Local Human-Machine-Interface LHMI
Activating
signal GREEN
Activating
signal YELLOW
Activating
signal RED
LED
Acknow.
IEC09000315 V1 EN-US
Figure 20: Operating sequence 3, three colors involved, alternative 2
Sequence 4 (LatchedAck-S-F)
This sequence has the same functionality as sequence 3, but steady and flashing light have been
alternated.
Sequence 5 (LatchedColl-S)
This sequence has a latched function and works in collecting mode. At the activation of the input
signal, the indication will light up with a steady light. The difference to sequence 3 and 4 is that
indications that are still activated will not be affected by the reset that is, immediately after the
positive edge of the reset has been executed a new reading and storing of active signals is
performed. Every LED is independent of the other LEDs in its operation.
Activating
signal
LED
Reset
IEC01000235 V2 EN-US
Figure 21:
That means if an indication with higher priority has reset while an indication with lower priority
still is active at the time of reset, the LED will change color according to
64
G
G
Operating sequence 5 (LatchedColl-S)
© Copyright 2011 ABB Power Grids. All rights reserved
R R Y
IEC09000315-1-en.vsd
IEC01000235_2_en.vsd
1MRK 506 326-UUS B
SEMOD56072-64 v1
SEMOD56072-67 v3
GUID-4D52D221-F54F-4966-95B1-6ED6C536CEC9 v2
Figure 22.
Line distance protection REL650
Technical manual