ABB REG650 Technical Manual page 65

Generator protection
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1MRK 502 034-UEN -
Technical Manual
Activating
signal
LED
Reset
IEC01000235 V2 EN
Figure 21:
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
22.
Activating
signal GREEN
Activating
signal RED
LED
Reset
IEC09000316 V1 EN
Figure 22:
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. LEDs set for sequence 6 are completely independent
in its operation of LEDs set for other sequences.
Timing diagram for sequence 6
Figure 23
shows the timing diagram for two indications within one disturbance.
Local Human-Machine-Interface LHMI
R
G
Section 4
IEC01000235_2_en.vsd
IEC09000316_1_en.vsd
59

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