en
Chapter 8
Tab. 9: Error displays of
the 7-segment display
98
SICK AG • Industrial Safety • Germany • All rights reserved
Fault diagnosis
8.4
Error displays of the 7-segment display
This chapter explains the meaning of the error displays of the
7-segment display and how to respond to the messages.
Display Cause
EDM error (the
or
flashing
indicates that
the internal
restart interlock
is not active)
Configuration of
the sensors
connected is
incorrect
System error
Overcurrent
switching
output 1
Short-circuit
switching
output 1
Short-circuit
switching
output 1
Overcurrent
switching
output 2
Short-circuit
switching
output 2
Is only detected with safety switching outputs (OSSDs) enabled.
1)
Remedying the error
Check the contactors or switching
devices and the wiring and rectify the
wiring error.
If is displayed switch the device off
and on again.
Check the connection of the sensors
to the switching amplifier.
Switch the device off and on again.
Replace the safety evaluation device
UE401.
at
1)
Check the contactor or the switching
devices. Replace them if necessary.
Check the wiring for short-circuit to
0 V.
Switch the device off and on again.
1 )
at
Check the wiring for short-circuit to
24 V.
Switch the device off and on again.
at
Check the wiring for short-circuit to
1)
0 V.
Switch the device off and on again.
at
Check the contactor or the switching
1)
devices. Replace them if necessary.
Check the wiring for short-circuit to
0 V.
Switch the device off and on again.
at
Check the wiring for short-circuit to
1)
24 V.
Switch the device off and on again.
Operating Instructions
L4000 system
8010009/1KO6/2023-08-16
Subject to change without notice