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Question/Problem
Possible causes
Troubleshooting
No measurement
points are displayed in
the scan view in
SOPAS ET
•
The laser is switched off
•
No objects in the measur‐
ing range
•
Obstacles in the field of
view
•
Check the laser control settings
•
Check the settings for the
angular and distance ranges
•
Check that objects are posi‐
tioned correctly in relation to
the sensor and that the field of
view is not being blocked by
other objects
No transmission of
measurement data via
the Ethernet interface
•
Measurement data not
subscribed
•
The laser is switched off
•
All channels deactivated in
the output data format
•
Check that the LMDscandata
command has been sent and
confirmed by the device
•
Check the laser control settings
•
Check the output data format
settings (in the application)
Status LED lights up
green but problem
persists
•
Device is unable to detect
errors
•
Device is ready to take mea‐
surements; check other
sources of the problem
Status LED lights up
yellow, device contin‐
ues to be able to take
measurements
•
Warning, e.g., due to prob‐
lem with device synchro‐
nization or I/O configura‐
tion
•
Read the description of the
problem under System status
in SOPAS ET and take action if
appropriate
Status LED lights up
red, device is no
longer able to take
measurements
•
Error, e.g., due to internal
or external factors. The pri‐
mary function of the
device cannot be fulfilled
at the current time.
•
Read the description of the
problem under System status
in SOPAS ET
•
If the error persists, disconnect
the device from the voltage
supply for 10 seconds and then
restart
Motor synchronization
fails, synchronization
LED on slave does not
light up green perma‐
nently
•
No device configured as
master
•
No device configured as
slave
•
Link the sync I/Os
•
Sync signal corrupted
•
Check the master and slave
settings
•
Check connections and cables
Encoder ticks not
being output in data
telegram or are not
incrementing
•
Encoder not connected or
signal corrupted
•
Unsuitable encoder in use
(e.g., no push-pull output
stage or supply voltage
does not match LMS4000)
•
No encoder configured
•
Encoder ticks deactivated
in output data format
•
Check the encoder connection,
data sheet, and pin assignment
•
Check the settings for the
encoder (interfaces) in SOPAS
ET
•
Check the output data format
settings (in the application)
Data transmission
rate is less than 600
Hz
•
Output interval is greater
than 1
•
Average filter activated
•
Check the output data format
settings (in the application)
•
Check the filter settings
9.2
Repairs
Repair work on the device may only be performed by qualified and authorized person‐
nel from SICK AG. Interruptions or modifications to the device by the customer will inval‐
idate any warranty claims against SICK AG.
9
TROUBLESHOOTING
44
O P E R A T I N G I N S T R U C T I O N S | LMS4000
8023198//2018-06-18 | SICK
Subject to change without notice