Operating Instructions Chapter 3
C 4000 Standard/Advanced
8 009 861/OE59/19-11-04 © SICK AG • Industrial Safety Systems • Germany • All rights reserved
17
Product description
3.4.2 Status indicators of the receiver
Display Meaning
, Orange Cleaning or realignment required
+ Yellow Reset required
, Red System providing signals for shutting down the machine (switching
output off)
, Green System enabled (switching output on)
3 Bypass active
6 System error. Disconnect the supply voltage to the C 4000 for at least
3 seconds. If the problem persists, replace the unit.
'
(
)
Poor alignment to sender.
Please refer to chapter 7.2 “Aligning sender and receiver” on page 56.
9 Operation with large protective field width (only after switching on)
? Operation with reduced resolution and/or blanking
B Non-coded operation (only after switching on)
% Operation with code 1 (only after switching on)
$ Operation with code 2 (only after switching on)
Z Emergency stop active
Other
displays
All other displays are error messages. Please refer to chapter “Fault
diagnosis” on page 61.
Fig. 6: Status indicators o
the receiver
Tab. 3: Status indicators o
the receiver
Orange
Yellow
Red
Green
7-segment displa
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