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8011952/YWL2/3-0/2016-08| SICKOPERATING INSTRUCTIONS | DUSTHUNTER C200
Subject to change without notice
6 TROUBLESHOOTING
Message Significance Possible cause Action
Reflector communication No connection between
sender/receiver unit and
reflector
● Connection line not connected
or not connected correctly
● Defective connection line
● Defective reflector/scattered
light receiver
● RS485 interface of the sender
unit defective
▸ Check the connection line
▸ Contact SICK Customer
Service.
LED monitor overflow Overmodulation of the
monitor channel during
scaling
Incorrect alignment of the opti-
cal axes of sender/receiver unit
and reflector
▸ Check/correct alignment.
▸ Repeat scaling
Q1-4 overflow Group signal of quad-
rant measurement too
high
● Measuring system not scaled
● Changed alignment of optical
axes
● Reduced active measuring
path
▸ Scale measuring system.
▸ Check/correct alignment.
▸ Contact SICK Customer
Service.
Set reference Scaling not possible Measurement or monitor signal
too low (contamination, incorrect
alignment)
▸ Check/correct alignment.
▸ Clean the optical surfaces
(see “Maintenance on the
sender/receiver unit and
reflector/scattered light
receiver”, page 94).
Contamination Contamination value is
higher than the permit-
ted limit value (see
“Technical Data”,
page 111)
● Deposits on the optical inter-
faces
● Unclean purge air
▸ Clean the optical surfaces
(see “Maintenance on the
sender/receiver unit and
reflector/scattered light
receiver”, page 94).
▸ Check purge air filter (see
“Cleaning the optical inter-
faces on the reflector”,
page 98).
▸ Contact SICK Customer
Service.
Power supply (24 V) < 18 V Supply voltage too low
● Line provided by customer
does not match the specifica-
tion (see “Connecting the MCU
control unit”, page 47)
● Voltage loss on the connection
line (core cross-section too low
in relation to the line length)
▸ Check the connection line
▸ Contact SICK Customer
Service.
Power supply (24 V) < 19 V