HEIDENHAIN MSE 1000 - Manual (Page 131)

Troubleshooting
Diagnostics
Operating Instructions 131
1 V
PP
diagnostics
Lissajous figure
Displays the signal A and B amplitude readings from the
encoder as a Lissajous figure. The encoder must be moved for
the graph to be visible.
The graph will display a circle, centered in the graph when
an encoder is operating properly. Differences in the shape or
position of the circle may indicate signal quality or encoder
alignment problems. The size of the circle is based on the signal
A and B amplitude readings. A circle smaller or larger than 1 V
may indicate a minimum or maximum amplitude problem.
Signal A Amplitude
Displays the signal A amplitude reading from the encoder.
Signal B Amplitude Displays the signal B amplitude reading from the encoder.
Signal A Symmetry Displays the signal A symmetry reading from the encoder.
Signal B Symmetry
Displays the signal B symmetry reading from the encoder.
Phase Angle
Displays the phase angle reading from the encoder.