Operating Instructions Chapter 3
C4000
Product description
8 009 221/16-11-00 © SICK AG • Safety Systems • Germany • All rights reserved 21
3.5.2 Indicator elements of the receiver
Fig. 14: Indicator elements of
the receiver
Display Meaning
{
Orange: Cleaning or realignment required
[
Yellow flashing: Reset required
}
Red: System locks the machine
]
Green: System enabled
e
System error. The device is defective. Replace the receiver.
0
Bad alignment to sender.
Please refer to chapter “Commissioning” on page 35.
1
2
h
Operation with wide protective field
r
Operation with reduced resolution and/or blanking
u
Non-coded operation (only after switching on)
-
Operation with code 1 (only after switching on)
,
Operation with code 2 (only after switching on)
Other
displays
All other displays are error messages. Please refer to chapter “Fault
diagnosis” on page 40.
7-segment display
Yellow
Orange
Red
Green
a
.
:
ean
ng o
t
e
operation indicator elements
of the receiver