SICK UE402 - Error displays of the diagnostics LEDs; Additional error displays of the 7-segment display of the C4000

Operating Instructions Chapter 8
UE402
8009874/YT67/2016-02-22 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 31
Subject to change without notice
Fault diagnosis
8.3 Error displays of the diagnostics LEDs
T
his section explains the meaning of the error displays of the LEDs and how to respond.
Display Possible cause Remedying the error
Wrong connection  Check the wiring for short and cross-
circuiting.

Check the voltage supply of the UE402.
 Switch the UE402 and the C4000 off and
back on again.
If the problem continues to occur, you must
replace the UE402.

Internal error of the
UE402
 Carry out an extended diagnosis of the con-
nected safety light curtain C4000 with the aid
of the CDS (see page 32).
 Replace the device if an internal error is
diagnosed.
8.4 Additional error displays of the 7Dsegment display of
the C4000
The safety light curtain C4000 has new functions when connected to switching amplifier
UE402. This section explains the meaning of the additional error displays of the 7>segment
display and how to respond to the messages. You can find a description of the 7>segment
display in the chapter titled “Status indicators” of the safety light curtain C4000 operating
instructions.
Display Possible cause Remedying the error
 UE402 configuration is
incorrect
 Configure the UE402 with the aid of the CDS.
 Check the connection from the C4000 to the
UE402.
 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 UE402.
 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 UE402 for a short-circuit.
 Unconfigured
operating mode
selected
 Configure the operating mode set on the
operating mode selector switch, or ensure that
this operating mode cannot be selected.
Tab.
8
:
Error displays
of the
diagnostics LEDs
Tab.
9
:
Error displays of the
7,segment display