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Chapter
10
Operating Instructions
C4000 Select
52
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8012247/RI61/2007-11-30
Fault diagnosis
10
Fault diagnosis
This chapter describes how to identify and rectify errors and malfunctions during the
operation of the safety light curtain.
10.1
What to do in case of faults
Cease operation if the cause of the malfunction has not been clearly identified!
Stop the machine if you cannot clearly identify or allocate the error and if you cannot safely
remedy the malfunction.
The system state lock-out
In case of certain faults or an erroneous configuration, the system can go into the lock
@
out
status. The 7
@
segment display on the safety light curtain then indicates a number ranging
from 1 through 6. To place the device back in operation:
Rectify the cause of the fault as per Tab. 28.
Switch the power supply for the C4000 Select off and on again (e.g. by unplugging the
system connection and reinserting it).
10.2
SICK Support
If you cannot remedy an error with the help of the information provided in this chapter,
please contact your local SICK representative.
10.3
Error displays of the diagnostics LEDs
This chapter explains the meaning of the error displays of the LEDs and how to respond.
Please refer to the description in chapter 3.4 “Status indicators and C4000 Select
message center” on page 18.
LED Name Display
Possible cause
Rectification
POWER
Off
No operating voltage, or
voltage too low
Check the voltage supply
and activate, if necessary.
REPLACE
Red
The sender unit has detected
an internal error.
Cycle power. If the error
persists, replace sender unit
WARNING
Tab. 26: C4000 Select LED
troubleshooting on sender
unit