Operating Instructions Chapter 3
M4000 Adv., Adv. A/P, Area
8010797/YT72/2016-02-19 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 21
Subject to change without notice
Product description
3.4.3 Status indicators of the receiver or of the M4000 Advanced A/P
Display Meaning
Orange Cleaning or realignment required
Yellow Reset required
Red System providing signals for shutting down the machine: output signal
switching devices off
Green System clear: output signal switching devices on
System error. Disconnect the supply voltage to the M4000 for at least
3 seconds. If the problem persists, replace the unit.
Poor alignment to sender.
Please refer to chapter 9.2 “Alignment of the M4000” on page 90.
Note: In normal operation, the display indicates the state “The light path
is interrupted”.
Muting (only with UE403 or sens:Control)
Override (only with UE403 or sens:Control)
Operation with blanking (only with UE403 or sens:Control)
Operation with large scanning range (only after switching on)
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 12 “Fault
diagnosis” on page 105.
Fig. 12: Status indicators of
the receiver or of the
M4000 Advanced A/P
indicators of the receiver or
the M4000 Advanced A/P
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