ABB Relion 670 Series RES670, Technical Manual

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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.
IEC01000235_2_en.vsd
Activating
signal
LED
Reset
IEC01000235 V2 EN
Figure 20: Operating Sequence 5 LatchedColl-S
That means if an indication with higher priority has reset while an indication with lower
priority still is active at the time of reset, the LED will change color according to
Figure
21 .
Activating
signal RED
LED
Reset
IEC09000316_1_en.vsd
Activating
signal GREEN
R G
IEC09000316 V1 EN
Figure 21: Operating sequence 5, two colors
Sequence 6
LatchedReset-S
In this mode all activated LEDs, which are set to Sequence 6 (LatchedReset-S), are
automatically reset at a new disturbance when activating any input signal for other LEDs
set to
Sequence 6 LatchedReset-S. Also in this case indications that are still activated will
not be affected by manual reset, that is, immediately after the positive edge of that the
manual reset has been executed a new reading and storing of active signals is performed.
1MRK 511 365-UUS A
Section 5
Local Human-Machine-Interface LHMI
Phasor measurement unit RES670 2.1 ANSI 93
Technical manual