Operation; Led Indication; Information Output Signal Attributes - ABB Tina 2B Original Instructions Manual

5

Operation

LED indication

LED Indication
Green
LED on Tina Green-Red (flash)
Red

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 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
the table below.
Info output signal switch
Delay
Warning! The information output signal is not a failsafe signal and should never be used for the safety purpose(s).
2TLC172121M0201, rev. A
2011-09-20
Description
Safety circuit closed (protection OK)
Safety circuit open (protection OK)
-
Dynamic signal
High
H L
~ 95 ms
Input signal on pin-2
Dynamic signal in
No dynamic signal in or 0 VDC in
+24 VDC in
No dynamic signal
Low
L) and low to high (L
L H
~ 80 ms
9
+24 VDC 0 VDC
Low Low
H) is given in
www.abb.com/lowvoltage