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© SICK AG
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Germany
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8014012/1EF3/2021-12-08
Subject to change without notice
Chapter
5
Fault diagnosis
Operating Instructions
5
Fault diagnosis
A3M60 Basic
This chapter describes how to identify and remedy errors and malfunctions during the
operation of the A3M60 Basic PROFIBUS Absolute Encoder.
WARNING
5.1
In the event of faults or errors
Cease operation if the cause of the malfunction has not been clearly identified!
Stop the machine if you cannot clearly identify or allocate the error and if you cannot safely
rectify the malfunction.
5.2
Support
If you cannot remedy an error with the help of the information provided in this chapter,
please contact your local SICK representative.
5.3
Diagnostics
5.3.1
Error and status indications on the LEDs
See section 3.6
Controls and status indicators
on page 14.
Tab. 15: Structure of the
diagnostics message
Note
5.3.2
Diagnostics message
PROFIBUS provides diagnostics features that help you to locate a problem if the cause of
the error is unclear or if there are availability problems.
The diagnostics on the A3M60 Basic are based on the
channel-related diagnostics
model
. The diagnostics comprise three bytes per error that occurs.
Message part
Value
Description
Byte 1
81h (fixed)
Header
Byte 2
40h (fixed)
Channel specification
Byte 3
30h
Max. velocity exceeded
36h
Position error
38h
Memory error
If, for example, a second error occurs at the same time, the entire three bytes are
transmitted again for this second error, i.e. the total length is then six bytes.
