ABB REL650 Technical Manual page 85

1MRK 506 382-UEN A
Line distance protection REL650 2.2 IEC
Technical manual
Activating
signal
LED
IEC01000228 V2 EN-US
Figure 15: Operating Sequence 1 (Follow-S)
If inputs for two or more colors are active at the same time to the same LED, the
priority color it shows is in accordance with the color described above. An example
of the operation when two colors are activated in parallel to the same LED is
shown in figure16.
Activating
signal GREEN
Activating
signal RED
LED
IEC09000312 V1 EN-US
Figure 16: Operating sequence 1, two colors
Sequence 2 (Follow-F)
This sequence is the same as Sequence 1, Follow-S, but the LEDs are flashing
instead of showing steady light.
Sequence 3 LatchedAck-F-S
This sequence has a latched function and works in collecting mode. Every LED is
independent of the other LEDs in its operation. At the activation of the input signal,
the indication starts flashing. After acknowledgment the indication disappears if
the signal is not present any more. If the signal is still present after
acknowledgment it gets a steady light.
Activating
signal
LED
Acknow.
IEC01000231 V1 EN-US
Figure 17: Operating Sequence 3 LatchedAck-F-S
Local Human-Machine-Interface LHMI
G G
Section 5
IEC01000228_2_en.vsd
GUID-107FE952-3B4C-4C01-831A-3147E652327C v4
R G
IEC09000312_1_en.vsd
en01000231.vsd
GUID-CC607709-5344-4C88-AA97-6395FD335E55 v5
SEMOD56072-47 v2
SEMOD56072-50 v2
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