Assignment Description
U
OU
T
Voltage supply of sensors
I5 / I6 Connection of sensor pair A
I7 / I8 Connection of sensor pair B
6.3 Wiring notes
Voltage supply and overvoltage protection
T
he SICK safety evaluation module must be supplied by a SELV/PELV power supply unit.
In order to protect the sensors effectively against overvoltage on the supply cable, the
connection of the +24 V supply voltage for the sensors to output U
OUT
of the SICK
UE410-SD safety evaluation module is urgently recommended.
Output U
OU
T
Output U
OUT
is the voltage supply for the Safeguard Detector sensors.
6.3.1 Wiring the inputs
Connecting the sensors
T
he sensors must be connected in a voltage-free state (U
v
= 0 V).
Figure 11: Connection diagram of Safeguard Detector photoelectric proximity sensor
PNP: load => M
•
S
ensor pair A must be connected to inputs I5/I6.
•
Sensor pair B must be connected to inputs I7/I8.
NOTE
Pr
eventing cross-circuits using separate sensor cabling
A cross-circuit between the cables of the sensor to the SICK safety evaluation module
may not be detected by the SICK safety evaluation module in some circumstances and
must therefore be prevented by suitable measures when laying or selecting cables.
Selection of the operating mode
•
Oper
ating mode with one sensor pair: If only sensor pair A (I5/I6) is to be used,
then I1 must be connected to U
B
. LED I1 lights up continuously in this case.
•
Operating mode with two sensor pairs: If both sensor pair A (I5/I6) as well as sen‐
sor pair B (I7/I8) are to be used, I1 may not be connected. LED I1 is continuously
off in this case.
Connecting the reset pushbutton
T
he reset pushbutton must be connected to input I4.
Connecting the external device monitoring (EDM)
The external device monitoring (EDM) is connected in series to the reset pushbutton at
I4.
6 ELE
CTRICAL INSTALLATION
24
O P E R A T I N G I N S T R U C T I O N S | UE410 Safeguard Detector Box 8021417/2018-01-17 | SICK
Subject to change without notice