SICK L4000 Mode D'emploi page 100

Operating Instructions
L4000 system
8010009/1HGT/2022-11-21
Subject to change without notice
Fault diagnosis
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
 Short-circuit
switching
output 2
 Short-circuit
between
switching output
1 and 2
Is only detected with safety switching outputs (OSSDs) enabled.
1)
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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.
1) at  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.
1) at  Check the wiring for short-circuit to
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.
at  Check the wiring for short-circuit to
1)
0 V.
 Switch the device off and on again.
 Check the wiring and rectify the error.
1)
 Switch the device off and on again.
en
Chapter 8
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