Error Displays Of The 7-Segment Display; Tab.9: Error Displays Of The 7-Segment Display - SICK L 4000 Manual De Instrucciones

Operating Instructions
L 4000 system
Tab.9: Error displays of the
7-segment display
8010009/TI69/2009-11-26
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.
Dis- Cause
play
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 out-
put 1
Short-circuit
switching out-
put 1
Short-circuit
switching out-
put 1
Overcurrent
switching out-
put 2
Short-circuit
switching out-
put 2
1)
Is only detected with safety switching outputs (OSSDs) enabled
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Remedying the error
Check the contactors or switching de-
vices 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
UE 401.
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.
Chapter 8
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