Operating Instructions
LMS1xx Laser Measurement Sensors
Troubleshooting
8012471/ZN27/2017-06-09 © SICK AG · Germany · All rights reserved · Subject to change without notice 89
Chapter 9
9 Troubleshooting
Claims under the warranty rendered void!
The housing screws of the LMS1xx are sealed. Claims under the warranty against SICK AG
will be rendered void if the seals are damaged or the device opened. The housing is only
allowed to be opened by authorized service personnel.
This chapter describes how to identify and rectify errors and malfunctions of the LMS1xx.
9.1 In the event of faults or errors
Cease operation if the cause of the malfunction has not been clearly identified!
Stop the machine/system if you cannot clearly identify or allocate the error and if you
cannot safely rectify the malfunction.
9.2 Error displays of the LEDs
Important On the LMS12x the status indicators are switched off so that as far as possible it cannot be
seen that the device is part of an object protection system. In the practice check mode they
are switched on.
Display Possible cause Rectification of the error
ÙandØoff
No operating voltage, or
voltage too low
Check the voltage supply and activate,
if
necessary.
Ðilluminated
Optics cover contamina-
ted, still in operation
Clean the optics cover.
Ð flashes with 1 Hz
Optics cover contamina-
ted, no operation
Clean the optics cover.
Ð flashes with 4 Hz
System error Pay attention to the error display of the
7segment display or carry out a
diagnostics with the aid of SOPAS ET.
Switch the device off and back on again.
Tab. 36: Error displays of the LEDs
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