Chapter 10 Operating Instructions
C 4000 Standard/Advanced
62 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8 009 861/OE59/19-11-04
Fault diagnosis
10.4 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. Please refer to chapter 3.4 “Status indicators” on page 16 for
a description of the 7-segment display.
Display Possible cause Remedying the error
', ( or
)
Inadequate alignment Re-align sender and receiver (see page 56).
The display goes off after 2 minutes.
- Configuration
incomplete
The display goes off automatically once the confi-
guration has been successfully transferred.
If display - does not go off:
Check the configuration of the system using the
CDS (Configuration & Diagnostic Software).
Re-transfer the corrected configuration to the
system.
/
or
EDM error Check the contactors and their wiring, eliminate
any wiring errors, if necessary.
If is displayed, switch the device off and back
on again.
0 Reset button fault Check the reset button for correct function. The
button may be defective or stuck.
Check the wiring of the reset button/for any
short-circuit to 24 V.
2O/ Configuration of the
switching amplifier
connected (e.g.
UE 402) is incorrect
Configure the switching amplifier connected with
the aid of the CDS.
Check the connection from the C 4000 to the
switching amplifier.
TO, Several operating
modes configured, but
none selected
Check the connection and the function of the
operating mode selector switch.
Check the connection for the operating mode
selector switch on the switching amplifier.
TO- Several operating
modes selected
simultaneously
Check the connection and the function of the
operating mode selector switch.
Check the connection for the operating mode
selector switch on the switching amplifier for a
short-circuit.
TO. Unconfigured
operating mode
selected
Configure the operating mode set on the
operating mode selector switch, or ensure that
this operating mode cannot be selected.
TO/ Key-operated push-
button for bypass is
malfunctioning or
invalid configuration
Check whether the configuration of the key-
operated pushbutton for bypass in the CDS
matches the electrical connection.
Check the function of the key-operated push-
button for bypass and replace it if necessary.
Ensure that both contacts on the key-operated
pushbutton for bypass are pressed within
2 seconds.
Tab. 21: Error displays of the
7-segment display
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