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BiSS / EnDat 2.2 - Encoder Connections
3.3.5 BiSS / EnDat 2.2
Encoder Interface X3A The BiSS/EnDat 2.2 encoder supports encoders with bidirectional serial
communication for incremental and absolute position with high transfer
rates.
The encoder provides one serial data channel with clock for communication
with the encoder. The clock signal serves as synchronization for the serial
data channel. This serial data channel can provide the drive with the abso-
lute position of the motor as well as other operating data.
The encoder protocol must be adjusted with parameter LE14.
Setting: NUM
EnDat 2.2 0
BiSS Hengstler Acuro 1
BiSS C-Mode 2
During start-up and run, a request is transmitted to the encoder and the
absolute position is read out via serial communication. This initial readout of
the absolute position provides the drive with the commutation angle for per-
manent magnet motors. On the very first operation of a permanent magnet
motor, it is necessary to synchronize the encoder position to one of the pole
pairs of the motor. See parameter LE06 for more information and section
5.10.
Due to the high clock frequencies, it is absolutely necessary to ensure
these signals are well shielded!
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