Error Displays Of The 7-Segment Display; Tab. 9: Error Displays Of The 7-Segment Display - SICK L4000 Instrucciones De Operación

en
Chapter 8
Tab. 9: Error displays of
the 7-segment display
98  SICK AG • Industrial Safety Systems • 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
7 EDM error (the
or flashing
∋ indicates that
the internal
restart interlock
is not active)
?1 Configuration of
the sensors
connected is
incorrect
System error
δ
ε?0 Overcurrent
switching
output 1
ε?1 Short-circuit
switching
output 1
ε?2 Short-circuit
switching
output 1
ε?3 Overcurrent
switching
output 2
ε?4 Short-circuit
switching
output 2
1)
Is only detected with safety switching outputs (OSSDs) enabled.
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.
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.
Operating Instructions
L4000 system
8010009/YTA2/2016-05-02
Subject to change without notice