Troubleshooting; What To Do In Case Of An Error - Pepperl+Fuchs MWC25M-L2M-B16 Series Manual

MWC25M-L2M-B16 Series

Troubleshooting

10 Troubleshooting
10.1

What to Do in Case of an Error

In case of a fault, use the following checklist to determine whether a malfunction with the sen-
sor can be remedied.
If none of the information provided in the checklist solves the problem, contact Pepperl+Fuchs
via your sales office for any queries. If possible, have the model number and firmware version
of the sensor to hand.
Checklist
Error
Green LED not lit
No CAN connection
to the device
Target object is not
detected even
though the sensor is
OK
60
Cause
The power supply is
switched off.
The plug is not connected
to the connector on the
sensor.
Wiring error in the splitter
or switch cabinet.
Supply cable to the sensor
is damaged.
LEDs have been disabled
in the parameter settings
The sensor's communica-
tion port is not connected
to the CAN bus or, in the
case of parameterization,
to the CAN/USB con-
verter-SUBD9.
No power supply
There may be an obstruc-
tion in the vicinity of the
sensor
Remedy
Check whether there is a reason why the
power supply is switched off (installation or
maintenance work, etc.). Switch on the
power supply if necessary.
Connect the plug to the sensor and tighten
the cap nut by hand.
Check the wiring carefully and repair any
errors with the wiring.
Pay attention to the pinoutas the standard
pinout (A-coded M12 plug) is different from
the pinout of the CANopen specification.
Replace the damaged cable.
Check the parameter settings under object
0x4001. The LEDs are disabled when
parameterizing 0x01.
Ensure that the communication port of the
sensor is connected to the CAN
bus/CAN/USB converter-SUBD9 and that
a 5-pin cable has been used.
Check whether there is a reason for the
absence of the power supply (installation or
maintenance work, etc.). Switch on the
power supply.
Make sure that the correct pins are con-
nected for CAN communication. (Pinout
differs from standard pinout)
Check that the sensor is correctly aligned.
Check the sensor parameterization and, if
necessary, change the measurement
mode. Information about various objects in
the sensing range is provided by the object
reflection list 0x4100 or in PACTware DTM
in the "Reflections in Field of View" evalua-
tion under the "Analysis" main menu.