Sharp CD-M4000 Operations Instructions Page 70

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Chapter 10 Operating Instructions
C4000 Standard/Advanced
70 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8009861/WA65/2012-06-12
Subject to change without notice
Fault diagnosis
Display Possible cause Remedying the error
 Short-circuit at the
operating mode
selector switch
Check the operating mode inputs on the
switching amplifier connected for short-circuit to
24 V.
System error Disconnect the supply voltage to the C4000 for
at least 3 seconds.
If the problem persists, then have the unit
(sender or receiver) replaced.
# Switching amplifier
connected (e.g.
UE402) is faulty
Interrupt the supply of power to the C4000 and
to the switching amplifier for at least 3 seconds.
If the problem persists, replace the switching
amplifier.
 Overcurrent at
switching output 1
Check the contactor. Replace, if necessary.
Check the wiring for short-circuit to 0 V.
 Short-circuit at
switching output 1
Check the wiring for short-circuit to 24 V.
$ Short-circuit at
switching output 1
Check the wiring for short-circuit to 0 V.
# Overcurrent at
switching output 2
Check the contactor. Replace, if necessary.
Check the wiring for short-circuit to 0 V.
! Short-circuit at
switching output 2
Check the wiring for short-circuit to 24 V.
 Short-circuit at
switching output 2
Check the wiring for short-circuit to 0 V.
" Short-circuit between
switching output 1
and 2
Check the wiring and rectify the error.
 Error on the teach-in
key-operated switch,
the emergency stop
button or the key-
operated pushbutton
for bypass
Check whether the configuration of the teach-in
key-operated switch, the emergency stop button
or the key-operated pushbutton for bypass in the
CDS matches the electrical connection.
Check the function of the teach-in key operated
switch, the emergency stop button or the key-
operated pushbutton for bypass.
 Invalid configuration of
the EDM
Verify that the machine-side EDM is connected
correctly.
$ External sender
detected
Check the distance from reflective surfaces
(page 43) or from other light curtains.
If necessary, re-configure the device with
another beam coding (page 25) or install non-
reflective partitions.
# Connection problem
between host and
guest
Check the connection between the cascaded
devices. If necessary, replace defective cables.
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