ABB REO 517 Applications Manual page 312

302
LED indication function (HL, HLED)
Activating
signal GREEN
Activating
signal RED
LED
Reset
)LJXUH  2SHUDWLQJ VHTXHQFH  WZR FRORUV
6HTXHQFH  /DWFKHG5HVHW6
In this mode all activated LEDs, which are set to sequence 6 (LatchedReset-S), are au-
tomatically 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, i.e. immediately after the positive edge of that the
manual reset has been executed a new reading and storing of active signals is per-
formed. LEDs set for sequence 6 are completely independent in its operation of LEDs
set for other sequences.
'HILQLWLRQ RI D GLVWXUEDQFH
A disturbance is defined to last from the first LED set as LatchedReset-S is activated
until a settable time, tRestart, has elapsed after that all activating signals for the LEDs
set as LatchedReset-S have reset. However if all activating signals have reset and some
signal again becomes active before tRestart has elapsed, the tRestart timer does not re-
start the timing sequence. A new disturbance start will be issued first when all signals
have reset after tRestart has elapsed. A diagram of this functionality is shown in figure
172.
R G
&KDSWHU 
0RQLWRULQJ
en01000236.vsd