Table 42: Motor feedback system error messages
Error regis‐
ter
Error
bit
Product
compat‐
ibility
Notifica‐
tion
Severity Persis‐
tence p-
perma‐
nent, np-
not perma‐
nent)
Description Required error handling
ENC_ST0
(adr. 40h)
7 EKx36,
EFx50,
EDx35
Position
Synchro‐
nization
Error
Minor np Position sensor subsys‐
tems could not match their
signals due to shocks,
hardware faults or too high
speed during power-up.
Synchronization of the
counted position and a new
absolute position was not
possible.
Attention!
If this error is accompanied
by the following (position
synchronization related) criti‐
cal errors, the system must
be placed in a safe state:
•
Counter Error
(ENC_ST0)
•
Position Cross-check
Error (ENC_ST1)
Meaning, it becomes a criti‐
cal severity error.
In any other case, it can be
handled as a minor severity
error and no action required.
EEx37 Cross-
check
Error
Critical p Cross-check of the two
safety channels failed.
The drive system must be
placed in a safe condition.
Action: SW reset of the
encoder.
6 EKx36,
EFx50,
EDx35
Counter
Error
Critical p Position quadrant counter
has detected an invalid
sequence of signals
Occurrence during opera‐
tion leads to a permanent
error.
The drive system must be
placed in a safe condition.
Action: SW reset of the
encoder.
EEx37 Improper
Configu‐
ration
Error
Encoder has detected an
invalid configuration.
Possible cause: allocation
misalignment between
encoder and motor shaft or
general encoder hardware
problem.
Occurrence during opera‐
tion leads to a permanent
error.
Bit will be set after start-up,
so clearing is needed.
Action: SW reset of the
encoder
CENTRAL FUNCTIONS 7
8017595/ZTW6/2018-01-15 | SICK T E C H N I C A L I N F O R M A T I O N | HIPERFACE DSL
®
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Subject to change without notice
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