ABB Relion 650 Series Technical Manual page 69

1MRK 506 326-UUS B
Activating
signal GREEN
Activating
signal RED
LED
Acknow
IEC09000313 V1 EN-US
Figure 18: Operating sequence 3, 2 colors involved
If all three signals are activated the order of priority is still maintained. Acknowledgment of
indications with higher priority will acknowledge also low priority indications, which are not visible
according to
Activating
signal GREEN
Activating
signal YELLOW
Activating
signal RED
LED
Acknow.
IEC09000314 V1 EN-US
Figure 19: Operating sequence 3, three colors involved, alternative 1
If an indication with higher priority appears after acknowledgment of a lower priority indication
the high priority indication will be shown as not acknowledged according to
Line distance protection REL650
Technical manual
R
R
Figure 19.
Y
G
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G
IEC09000313_1_en.vsd
R
R Y
IEC09000314-1-en.vsd
Section 4
Local Human-Machine-Interface LHMI
GUID-A652A49D-F016-472D-8D38-6D3E75DAB1DB v2
GUID-071B9EB5-A1D2-49C5-9458-4D21B7E068BE v2
Figure 20.
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