Emerson Control Techniques Epsilon Eb Series Reference Manual page 187

Epsilon Eb and EN Drives Reference Manual
Figure 124: CCW Electrical Angle Plot
=
EUA 90
Where:
EUA = Motor Encoder "U" Angle
If EUA is >360° subtract 360°.
Next, use the oscilloscope to examine the phase relationship between Z and V
124 to determine the electrical angle at the rising edge Z. This is the Encoder Marker
Electrical Angle.
168
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° +
tu
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. Use Figure
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