Leuze electronic AMS 200, Technical Description, Page: 102 / 118

Diagnostics and troubleshooting
98 AMS 200 Leuze electronic
9 Diagnostics and troubleshooting
9.1 General errors causes
9.2 Status displays on the AMS 200… display
9. 3 PROFIBUS errors
Error Possible error causes Measures
PWR LED = "OFF"
• No supply voltage connected to
the device.
• Hardware error.
❏
Check device supply voltage.
Send device to customer service.
PWR LED = "flashing
red"
• Warning:
Light beam interruption.
• Warning: Plausibility error.
❏
Check alignment.
❏
Traverse rate >10m/s.
PWR LED = "perma-
nently red"
• Hardware error.
❏
See display for error description.
Send device to customer service.
Error Possible error causes Measures
PLB appears on the
display
• Indicates that implausible meas-
urement values have been ascer-
tained.
• Light beam interruption.
• Perm. measurement range
exceeded.
• Temperature far outside the
perm. range (Display: PLB+TMP).
❏
Check alignment.
❏
Check traverse rate >10m/s.
❏
Check whether the laser beam is always
pointing on the reflector during travel.
❏
Restrict traversing path or select an
AMS 200… with longer measurement range
❏
Ensure that the environmental conditions lie
within the perm. range.
ATT appears
on the display
• Indicates that the level of the
received signal is in the warning
range.
❏
Check alignment.
❏
Clean the optics of the AMS 200…
❏
Remove protective foil from reflector.
❏
Clean reflector surface.
TMP appears on the
display • Temperature outside the permis-
sible parameters.
❏
Ensure that the environmental conditions lie
within the perm. range.
LSR appears
on the display
• Laser prefailure message.
Replace device at the next possible
opportunity.
Have replacement device ready.
ERR appears
on the display
• Indicates a hardware error.
If necessary, send device to customer
service.
Error Possible error causes Measures
No communication via
PROFIBUS
(BUS LED red)
• Incorrect wiring.
• Wrong termination.
• Incorrect PROFIBUS address
set.
• PROFIBUS deactivated.
• Incorrect configuration.
❏
Check wiring.
❏
Check termination.
❏
Check PROFIBUS address.
❏
Activate PROFIBUS interface.
❏
Check configuration of the device in the
configuration tool.
Sporadic errors at the
PROFIBUS
• Incorrect wiring.
• Wrong termination.
• Effects due to EMC.
• Overall network expansion
exceeded.
❏
Check wiring.
❏
Check termination.
❏
Check shielding.
❏
Check grounding concept and connection to
FE.
❏
Avoid EMC coupling caused by power
cables laid parallel to device lines.
❏
Check max. network expansion as a func-
tion of the baud rate set.