ABB REO 517 Applications Manual page 313

Multi-function terminals for railway application
Table of Contents

Advertisement

LED indication function (HL, HLED)
From
disturbance
length control
≥1
per LED
set to
sequence 6
)LJXUH $FWLYDWLRQ RI QHZ GLVWXUEDQFH
In order not to have a lock-up of the indications in the case of a persisting signal each
LED is provided with a timer, tMax, after which time the influence on the definition of
a disturbance of that specific LED is inhibited. This functionality is shown i diagram in
figure 173.
Activating signal
GREEN
Activating signal
YELLOW
Activating signal
RED
)LJXUH /HQJWK FRQWURO RI DFWLYDWLQJ VLJQDOV
7LPLQJ GLDJUDP IRU VHTXHQFH 
Figure 174 shows the timing diagram for two indications within one disturbance.
≥1
tRestart
&
t
&
≥1
≥1
≥1
&
tMax
t
&KDSWHU 
0RQLWRULQJ
New
disturbance
&
en01000237.vsd
To LED
To disturbance
length control
en01000238.vsd
303

Advertisement

Table of Contents
loading

Table of Contents