SICK UE403 - Status indicators

Chapter 3 Operating Instructions
UE403
14 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010854/WP71/2012-11-28
Subject to change without notice
Product description
3.4 Status indicators
T
he UE403 has a status LED for the input and output (I/O) on each M12 connection. Other
indications during operation are also indicated on the 7>segment display on the M4000
receiver.
Status LED
COM connection
Display Meaning
 Yellow LED off: No supply voltage
 Yellow LED illuminated: Device ready for operation
 Yellow LED flashing: Error
(See chapter 9.3 “Error displays of the LEDs” on page 30ff.)
Connections RES/OVR, A1, A2, B1, B2, 
Display Meaning
 Yellow LED off: No signal (0 V LOW)
 Yellow LED illuminated: Signal is present (24 V HIGH)
• The combined RES/OVR connection can process several signals. However, the status
LED only indicates whether a signal is present or not. A decision as to which signal is
present is not made.
• The electrical connection is described in chapter 5.4 “Reset/override/additional signal
C1/belt stop connection M12× 5” on page 21.
Fig. 3: Status LED of the
UE403
Tab.
2
:
Meaning of the status
LEDs of the UE403
Notes
Status LED
RES/OVR:
Reset/override/C1/belt stop
A2:
Muting sensor
B2:
Muting sensor
COM:
EFI connection
A1:
Muting
sensor
B1:
Muting
sensor

:
External muting lamp
Configuration connection (
under
protective cover)