Chapter
9
Operating Instructions
DME4000
112
© SICK AG • Germany • Subject to change without notice
8014584/ZN33/2017-07
Appendix
9.2.4
Definitions/Errors/Correct Errors of PROFIBUS Error Messages
Problem
Cause
Remedy
Sensor error
Hardware problem
Check supply voltage,
Voltage off/on, if not self-repairing;
contact the service department.
Sensor temperature not within speci-
fications
Sensor too cold
(internal temperature
<
-15
°
C: Wait
until warm-up phase finishes. It might
be necessary to use the sensor with
heating.
Sensor too warm
(internal temperature
>
80
°
C: Let
sensor cool down.
Measurement error
Internal sensor temperature too
high/too low: Laser off
Check ambient temperature; use
cooling/heating
Light path interference due to fog,
dust or other factor
Take measures to provide uninter-
rupted light path
Measurement error
Lens or reflector soiled
Clean optical surfaces
Movement speed
>
10 m/s
Check maximum movement speed
Light path to reflector interrupted
Can light spot always be seen on the
reflector during movement?
Effect: Measured value output is set to “0”; PLB indicator lights in display; if
there is a temperature error: Laser off
Pre-failure signal
Laser diode at end of operating life
Have replacement sensor ready for
next maintenance cycle
Light path interference due to fog or
dust
Check light path
Lens or reflector soiled
Clean optical surfaces at next
maintenance cycle
Internal sensor temperature at fringe
range
Check ambient temperature
GSD Offset
Is deactivated with Octet 9, Bit 7
Effect: The offset value set per GSD is not transmitted to sensor
Application: When the preset function is used, the offset value set during the
preset remains valid
