BiSS Sensor Faults
BisErBit
BiSS Error Bit
active.
One of the bits in the
BiSS frame is used to
signal error. This bit is set
by the encoder and read
by the drive according to
user-defined parameter
(Status bits active value).
This fault indicate that
the drive receives the
error bit being active.
0x7303,
0x7304
Please check the 2 cases often
seen:
1. Misconfiguration of Status bits
active value. The status bits (error
bit and warning bit) are by default
read as active low, i.e. the error bit
being 0 indicates the error being
active. Please check the
documentation of the encoder and
correctly configure the reading.
2. The encoder is indeed rasing an
error/ warning. Please check the
documentation of the encoder,
consult the encoder manufacturer
for further investigation.
BisWnBit
BiSS Warning
Bit active.
One of the bits in the
BiSS frame is used to
signal warning. This bit is
set by the encoder and
read by the drive
according to user-
defined parameter
(Status bits active value).
This fault indicate that
the drive receives the
warning bit being active.
0x7303,
0x7304
BisAcBit
BiSS
Acknowledge
Bit not
received.
The BiSS slave is not
acknowledging the
request to communicate
sent by the drive. This
usually happens when
there is some issue with
the power or
communication link, e.g.
one of the wires is
broken or not well
connected.
0x7303,
0x7304
Please firstly make sure that the
encoder is connected to the port
which is being configured.
Then check the wiring accoding to
the hardware wiring instructions to
make sure that, firstly the signals
are transfered to the correct pins,
secondly the signal transfer is
stable. Assistance of measurement
tools such as multimeter and
oscilloscope is necessary.
BisSrtBt
BiSS Start Bit
not received.
The BiSS slave
acknowledged the
request to communicate,
but it didn't sent the start
bit to start the
communication. This
usually happens when
there is some issue with
the power or
communication link, e.g.
one of the wires is
broken or not well
connected.
0x7303,
0x7304
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