Hitachi Relion 650 Series Technical Manual page 55

1MRK 511 557-UEN Rev. A
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 15.
Activating
signal GREEN
Activating
signal YELLOW
Activating
signal RED
LED
Acknow.
D0E13165T201305151403 V1 EN-US
Figure 15:
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
Activating
signal GREEN
Activating
signal YELLOW
Activating
signal RED
LED
Acknow.
D0E13168T201305151403 V1 EN-US
Figure 16:
Sequence 4 (LatchedAck-S-F)
This sequence has the same functionality as sequence 3, but steady and flashing light are swapped.
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.
Technical Manual
Y
G
Operating sequence 3, three colors involved, alternative 1
G
G
Operating sequence 3, three colors involved, alternative 2
© 2021 Hitachi Energy. All rights reserved.
R
R Y
IEC09000314-1-en.vsd
R R Y
IEC09000315-1-en.vsd
Section 5
Local HMI
D0E5655T201305151403 v1
D0E5662T201305151403 v1
Figure 16.
D0E5426T201305151403 v1
D0E5427T201305151403 v1
49