Chapter
9
Operating Instructions
TPS
72
Operating Instructions | SICK
8021799/2017-09-26
Subject to change without notice
Fault diagnosis
9
Fault diagnosis
This chapter describes how to identify and remedy fault situations.
9.1
Response to faults
WARNING
Risk resulting from faults
Cease operation if the cause of the malfunction has not been clearly identified.
A defect in the system may result in fatal accidents or damage to the system.
Take the TPS out of operation if you cannot clearly identify the fault and if you cannot
safely remedy the problem.
9.2
Fault indicators of the LMS151
You can discern the following information from the LEDs:
Display
Possible cause
Remedy
and
off
No operating voltage, or
voltage too low
Check the voltage supply and
activate, if necessary
lights up
Optics cover contaminated,
still in operation
Clean the optics cover.
flashes at 1 Hz
Optics cover contaminated,
no operation
Clean the optics cover.
flashes at 4 Hz
System error
Pay attention to the error display
of the 7-segment display or carry
out a diagnostics with the aid of
SOPAS ET.
Switch the device off and back on
again.
Tab. 19: LED display in the case of an error for the LMS151 2D LiDAR sensor
The 7-segment display provides the following information:
Display
Possible cause
Remedy
No fault.
Device is in measuring mode
Idle mode, outputs are in
the OFF state, laser is
switched off.
No fault. If the criteria for IDLE
mode are withdrawn, operational
readiness is restored.
Motor starts
No fault.
Error in the 2D LiDAR
sensor
Send the 2D LiDAR sensor to the
manufacturer for repair.
Temperature is too low
The ambient temperature is too
low for the measuring mode.
Tab. 20: 7-segment display for the LMS511/LMS111 2D LiDAR sensor