BisCrc
BiSS CRC error. The BiSS frame contains
a CRC6 of some of the
data that is being sent.
This error is raised when
the CRC sent by the BiSS
slave is different than the
CRC computed by the
drive. This usually means
that the drive can't read
the frame properly.
0x7303,
0x7304
Regarding a CRC error, there are
several causes often seen:
1. Misconfiguration of the sensor
reading leading to the bits being
read wrong. In this case the fault
cannot be reset. Please check the
sensor configuration according to
the documentation of the encoder
manufacturer. Common
parameters wrongly configured
are the singleturn resolution and
multiturn resolution.
2. Misconfiguration of the object
CRC polynom, thus the CRC is
calculated wrong. In this case the
fault cannot be reset. Please check
the polynom in the encoder
documentation. The value by
default: 48 represents x^0 + x^1 +
x^6, which usually doesn't need to
be modified.
3. Inconsistency in signal transfer.
In this case the fault can
sometimes be reset, but would
occur under certain circumstances.
Please check the signals received
by the drive with an oscilloscope
under operation for better
investigation. The cause can be
that the signal transfer is
influenced by external field, or that
the signal transfer is unstable for
example due to soldering quality
or cable aging. Improve the
situation by replacing the cables,
better arranging the cables, adding
shielding, etc., ensuring that the
signals can be stably transfered
with acceptable noise.
BisRegEr
BiSS register
communication
error
Some BiSS encoders
require the firmware to
read/write some of their
registers to be initialized
properly. This error is
triggered when any of
these BiSS register
transaction fail.
0x7303,
0x7304
Try to reconfigure the encoder that
raised this error. To do so, there
are two possibilities:
- Set its function to Disabled and
then back to the function it had.
- Remove the encoder from the
sensor port list (0x2100) and add it
again.
SSI Sensor Faults
Synapticon Documentation
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