Emerson Epsilon Eb Series Reference Manual page 151

Epsilon Eb and E Series EN Drives Reference Manual
Figure 84: 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
84 to determine the electrical angle at the rising edge Z. This is the Encoder Marker Electrical
Angle.
134
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 
180
° +
 
tu
 
t1
. Use Figure
TS