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NOTE
SSI only encoders are not recommended for use as motor feedback, but can be used for either
positioning or reference.
EnDat only encoders (EnDat)
•
6 wire
•
Position obtained via synchronous comms
•
Feedback resolution defined by comms resolution
•
No marker input
•
Freeze is based on the time of the freeze event and interpolation between samples
•
Wirebreak detection by comms error
•
Comms includes CRC check
•
Auto-configuration is possible
•
Compatible with EnDat 2.1 and EnDat 2.2
•
Encoder cable length compensation allowing high baud rates with long encoder cables.
NOTE
An EnDat encoder will provide high performance and is recommended for precision applications.
BiSS SINCOS encoders (SC BiSS)*
•
10 wire
•
5 V to 15 V supply
•
Absolute position determined via synchronous comms
•
Nominally the feedback resolution is sine waves per revolution plus 9 additional bits of
interpolation information
•
No marker input
•
Freeze is based on the time of the freeze event and interpolation between samples
•
Wirebreak detection
•
Encoder phase error detection using comms
•
Comms includes CRC check
•
Partial auto-configuration is possible
•
Initialization required to obtain the absolute position via comms and to align the analog signals
with the encoder counter
•
Encoder cable length compensation allowing high baud rates with long encoder cables.
NOTE
A SC BiSS encoder will provide high performance and is recommended for precision applications
BiSS only encoders (BiSS)*
•
6 wire
•
5 V to 15 V supply
•
Position obtained via synchronous comms
•
Feedback resolution defined by comms resolution
•
No marker input
•
Freeze is based on the time of the freeze event and interpolation between samples
•
Wirebreak detection by comms error
•
Comms includes CRC check
•
Partial auto-configuration is possible
•
Compatible with BiSS C Mode.
•
Encoder cable length compensation allowing high baud rates with long encoder cables.
NOTE
A BiSS encoder will provide high performance and is recommended for precision applications
* BiSS is not currently supported.
20
SI-Universal Encoder User Guide
Issue: 2
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