ABB RES670 Technical Manual page 99

1MRK 511 408-UUS A
Phasor measurement unit RES670 2.2 ANSI
Technical manual
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
The sequence described below is valid only if the same function block
is used for all three colour LEDs.
When an acknowledgment is performed, all indications that appear before the
indication with higher priority has been reset, will be acknowledged, independent of if
the low priority indication appeared before or after acknowledgment. In figure
shown the sequence when a signal of lower priority becomes activated after
Local Human-Machine-Interface LHMI
G G
Section 5
R G
IEC09000312_1_en.vsd
en01000231.vsd
GUID-CC607709-5344-4C88-AA97-6395FD335E55 v5
SEMOD56072-47 v2
SEMOD56072-50 v2
18 it is
93