Function and Commissioning of the TNT 35
Leuze electronic
TNT 35 und TNT 35/7-24V
21
T
N
T
35/
7-
24V
DEUTSCH
ENGLISH
FRANÇAIS
IT
ALIANO
ESPAÑO
L
NEDERLANDS
4.2.4
Wiring of single-beam protective photoelectric sensors in series
Several photoelectric sensor pairs can be connected in series with multi-axle arrangements
on a machine or system. The adjacent picture shows a three-axle photoelectric sensor
arrangement. It is possible to operate up to six photoelectric sensor pairs on one TNT 35.
Function characteristics:
The TNT 35 (terminal 14) activates the first photoelectric sensor transmitter. The receiver is
activated via the first optical path and, by using its output, activates the second
photoelectric sensor transmitter. The supply has to provided on each photoelectric
transmitter and receiver. The feedback to the TNT 35 (terminal 15) is done by the last
photoelectric sensor receiver within the series connection.
Any time the light axis is interrupted, a message is issued to the TNT 35 through the series
connection.
The series connection tests every transmitter and receiver for function capability while
performing the testing procedure.
Figure 4.2-5:
Wiring of single-beam protective photoelectric sensors in series
5 6
8
7
13 14 15 16
21 22 23 24
29 30 31 32
Sensor
Start/Active
EDM
OFF/ON
TNT35
+24V
GND
T
R
+24V
GND
Active
+24V
GND
R
T
+24V
GND
Active
+24V
GND
T
R
+24V
GND
Active