ABB REO 517 Applications Manual page 315

Multi-function terminals for railway application
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LED indication function (HL, HLED)
Activating
signal 1
Activating
signal 2
LED 1
LED 2
Automatic
reset
Manual
reset
)LJXUH 2SHUDWLQJ VHTXHQFH  /DWFKHG5HVHW6  WZR GLIIHUHQW GLVWXUEDQFHV
Figure 176 shows the timing diagram when a new indication appears after the first one
has reset but before tRestart has elapsed.
Disturbance
t Restart
Disturbance
t Restart
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0RQLWRULQJ
305

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