ABB 2TLJ030050R0500 Manuale di istruzioni originale - Pagina 8
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5 Operation
LED indication
LED
LED on Tina
Information output signal attributes
The information output of the unit (pin-5) is set either high (+24 VDC) or low (0 VDC) depending on
four different input signals (pin-2):
•
Dynamic signal - Dynamic signal input exist, i.e. the safety circuit is OK up until this unit
•
No dynamic signal - Dynamic signal input does not exist, i.e. the safety circuit is interrupted
before this unit.
•
+24 VDC - A constant +24 VDC signal is applied = high (H)
•
0 VDC - The pin is connected to 0 VDC = low (L)
The information output signal depends on the input signal according to the table below. Note that if the
safety is interrupted; i.e. if the emergency button is pressed, the information output signal is always
low (L).
Input signal (pin-2)
Info output signal (pin-5)
The delay for switching the information signal output from high to low (H
is given in the table below.
Info output signal switch
Delay
NB: If the unit detects an error (short circuit or interruption) lasting shorter than 13 ms the information
output signal is set to low for 1.2 s (1200 ms) and then set to high again. This does not affect Vital
since it needs 22 ms to release. Pluto however does release, which means that a filter (20 ms) must
be implemented if this function is needed.
Warning! The information output signal is not a failsafe signal and should never be used for the
safety purpose(s).
8
Smile_Tina_Manual_(English)_v1A
2010-10-19
Indication
Description
Safety circuit closed
Green
(protection OK)
Safety circuit open
Green-Red (flash)
(protection OK)
Safety circuit interrupted
Red
(protection open)
Dynamic signal
High
H
L
~ 12 ms
Input signal on pin-2
Dynamic signal in
No dynamic signal in or 0 VDC in
+24 VDC in or safety circuit
interrupted
No dynamic signal
High
L
H
~ 0 ms
+24 VDC
0 VDC
Low
High
L) and low to high (L
H)
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