116 Rockwell Automation Publication 2198-UM002L-EN-P - October 2021
Chapter 4 Connector Data and Feature Descriptions
Figure 69 - Sine/Cosine Encoder Phasing
The drive UFB feedback connector uses Hall signals to initialize the
commutation angle for permanent magnet motor commutation. The
commutation self-sensing feature initializes the commutation angle for
motors that do not have the Hall effect sensors.
Figure 70 - Hall Encoder Phasing
IMPORTANT
The Sine/Cosine encoder signal phasing is different than the TTL
encoder signal phasing.
IMPORTANT
When using an incremental Sine/Cosine feedback device, the drive
cannot synthesize a marker signal, so a physical marker signal is
required for the home-to-marker sequence (and the marker hookup
test) to complete.
When using absolute feedback devices (for example, Hiperface) the
drive synthesizes a marker signal because these devices don't have a
marker signal required for the home-to-marker sequence (and the
marker hookup test) to complete.
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