Electrical connection
32
SOLID-2
Leuze electronic
Review-Stand, , 8. April 2015
DEUTSCH
E
NGLISH
FRAN
ÇAIS
ITALIA
N
O
ESPAÑOL
N
EDERLANDS
The polarity of of the power supply at Pin1 and Pin3 determines the selected optical
transmission channel. If +24V DC is present on Pin1 and 0V on Pin3 transmission
channel 1 is selected. If 0V is present on Pin1 and +24V DC on Pin3 transmission
channel 2 is selected.
Make certain to select the same transmission channel for both, for transmitter and
receiver.
Warning!
For optimal shielding cables must be used, where the shield is led on the knurled nut of the
connecting cable socket (such cables are listed under accessories in Chapter 11.3).
6.1.1.1
Internal cyclical testing
To activate internal cyclical testing, connect Pin4 of the transmitter to +24V DC.
Warning!
While using the internal cyclical testing both of the OSSDs must by used to open the safety
circuit redundant.
6.1.1.2
External test signal
To use the external testing option, connect the test output of the corresponding testing
safety interface with Pin4 of the transmitter. In case of using the external testing procedure
in combination with a testing safety interface, only one of the OSSDs needs to be
connected to the testing safety interface.
Note:
External testing takes precedence over the internal testing.
Test input Pin4 Transmitter:
+24V DC
test = not activated
high impedance or 0V test = activated
a = transmitter
b = test input pin4
c = high impedance or 0V
d = high impedance
Fig. 6.1-2:
Transmitter, external testing
+24V DC
b
a
2 K
External test signal
8 - 150 ms
c
OSSD output
6 ms
6 ms
d
+24V DC
+24V DC
