ABB RES670 Technical Manual page 100

Section 5
Local Human-Machine-Interface LHMI
94
acknowledgment has been performed on a higher priority signal. The low priority
signal will be shown as acknowledged when the high priority signal resets.
Activating
signal GREEN
Activating
signal RED
LED
Acknow
IEC09000313 V1 EN-US
Figure 18: Operating Sequence 3 (LatchedAck-F-S), 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 figure 19.
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
figure 20.
R
R
Y
G R R
1MRK 511 408-UUS A
G
IEC09000313_1_en.vsd
GUID-A652A49D-F016-472D-8D38-6D3E75DAB1DB v3
Y
IEC09000314-1-en.vsd
GUID-071B9EB5-A1D2-49C5-9458-4D21B7E068BE v3
Phasor measurement unit RES670 2.2 ANSI
Technical manual