ABB RELION 630 Series Technical Manual page 49

1MRS757256 F
PML630/Compact Load-Shedding Solution
Technical Manual
Activating
signal GREEN
Activating
signal RED
LED
Reset
IEC09000316 V1 EN
Figure 20: 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 are not 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.
Figure 21 shows the timing diagram for two indications within one disturbance.
R G
Section 3
Basic functions
IEC09000316_1_en.vsd
43