LS680-DA
Troubleshooting
2
014-
05
23
8
Troubleshooting
8.1
What to do in the event of an error
Before requesting a service call, please check that the following actions have
been taken:
■
Test the equipment according to the following checklist.
■
Telephone assistance from the Service Center in order to isolate the
problem.
Checklist
■
If none of the above solves the problem, contact the Service Center. Have
the exact model number of the sensor ready if possible.
Fault
Displays
Cause
Remedy
PWR
ERR
LAN
OPT
No display
off
off
off
off
The power supply is
switched off or there is a
wiring fault in the
distributor or control
cabinet.
Check whether there is
a reason why it is
switched off (installation
or maintenance work
etc.). Switch the power
supply on if appropriate.
Check the wiring
carefully and repair any
wiring faults.
No network
connection
on
off
Network cable not
connected or incorrectly
connected
Check the connection to
the next node; is the
LAN LED also off on
this node?
No optical
communication
on
on
off
Receiving level too low,
transfer blocked
Improve alignment or
incorrect pairing; F1+F2
required
Bargraph not
responsive
despite precise
alignment
on
off
on
on
Not an error; individual
scaling deviation in the
highest green signal
strength
none
Bargraph full
scale and data
errors
on
on
on
on
Overload of the device
Move the device in
horizontal or vertical
direction by about
40 mm relative to the
other device
