Operating Instructions Chapter 9
UE403
8010854/WP71/2012-11-28 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 29
Subject to change without notice
Fault diagnosis
9 Fault diagnosis
This chapter describes how to identify and remedy errors and malfunctions during the
operation of the UE403 switching amplifier.
9.1 In the event of faults or errors
WARNING
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 lockCout status
In case of certain faults or an erroneous configuration, the system can go into the lock>out
status. The 7>segment display on the connected multiple light beam safety device then
indicates or a defined error message (see M4000 operating instructions, section “Error
displays of the 7>segment display”).
First check whether the lock>out status is still present after switching on and off the
UE403 and, if necessary, the connected multiple light beam safety device (e.g. by
disconnecting the system plug and re-connecting.
To place the device back in operation:
Rectify the cause of the fault following the notes in the M4000 operating instructions.
Switch the power supply of the connected M4000 off and back on again (e.g. by
unplugging the system plug and reinserting it).
The lock-out status has the highest priority above all other indications on the 7>segment
display.
9.2 SICK support
If you cannot remedy an error with the help of the information provided in this chapter,
please contact your local SICK representative.
Note
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