3.2.4 Alignment aid
A laser alignment aid is installed in the sender of the safety light curtain. The laser
ali
gnment aid can be switched on to perform a simple alignment of the sender.
Diagnostic LEDs are installed in the receiver of the safety light curtain. For a simple
alignment of the receiver, diagnostic LEDs 1, 2, 3 and 4 indicate the alignment quality
once the safety light curtain has been switched on.
Diagnostic LEDs 5 and 6 light up if the topmost beam (far from system plug) is synchro‐
nized. Diagnostic LEDs 7 and 8 light up if the bottommost beam (near system plug) is
synchronized.
3.2.5 Restart interlock
The safety light curtain has an integrated restart interlock. The function can be config‐
ur
ed during commissioning.
A restart interlock prevents the machine from starting again once the protective device
has been triggered. The operator must first press a reset pushbutton to allow the pro‐
tective device to resume its monitoring function. The operator can then restart the
machine.
3.2.6 External device monitoring (EDM)
The safety light curtain has integrated external device monitoring. The function can be
conf
igured during commissioning.
The external device monitoring (EDM) monitors the status of downstream contactors.
In order to use the external device monitoring, positively guided contactors must be
used to switch off the machine. If the auxiliary contacts of the positively guided contac‐
tors are connected to the external device monitoring, the external device monitoring
checks whether the contactors drop off when the OSSDs are switched off.
3.2.7 Application diagnostic output
The safety light curtain has an application diagnostic output on the system connection.
Depending on the configuration, the application diagnostic output signals a certain sta‐
t
us of the safety light curtain, e.g. if the reset pushbutton must be engaged or if there is
a weak signal at the receiver.
For a signal of the safety light curtain to be displayed, a light can be connected to the
application diagnostic output or the signal can be transmitted to the machine con‐
troller.
3.2.8 System plug
Overview
T
he following system plugs are available for the safety light curtain:
•
SP1 system plug
The system plugs are available in the following versions:
•
System plug (flying leads, 8-wire)
The following functions are available depending on the system plug used:
•
Beam coding
•
Restart interlock
•
External device monitoring (EDM)
•
Application diagnostic output
PRODUCT DESCRIPTION 3
8022883/2019-03-07 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex
17
Subject to change without notice
To Next Page
Loading...