Diagnostics and troubleshooting
Leuze electronic
MA 235
i
73
TNT
35/7-2
4
V
13.2
Interface errors
Notice!
Please use
chapter 13 as a master copy
should servicing be required.
Cross the items in the "Measures" column which you have already examined, fill out the
following address field and fax the pages together with your service contract to the fax
number listed below.
Customer data (please complete)
Leuze Service fax number:
+49 7021 573 - 199
Error
Possible error causes
Measures
No communication via
CANopen interface
CAN
continuous red
light LED
Incorrect wiring.
Check wiring.
Incorrect baud rate / address
different baud rate setting in con-
trol and MA: no communication.
Address >99: no communication.
Check switch settings:
Baud rate selector switch S3.
Address switch S1, S2.
Sporadic errors at the
CANopen interface
Incorrect wiring.
Check wiring.
In particular, check wire shielding.
Check the cable used.
Effects due to EMC.
Check shielding (shield covering in place up to
the clamping point).
Check grounding concept and connection to
functional earth (FE).
Avoid EMC coupling caused by power cables laid
parallel to device lines.
Overall network expansion
exceeded.
Check max. network expansion as a function of
the max. cable lengths.
Figure 13.1: Interface error
Device type:
Company:
Contact partner / department:
Phone (direct):
Fax:
Street / No:
ZIP code/City:
Country:
