Yaskawa Sigma-5 User Manual: Design and Maintenance - Linear Motors - Manual (Page 105)

4.2 Settings for Common Basic Functions
4-15
4
Operation
„ When Using a Linear Scale with Multiple Zero Points and Passing 1st Zero Point in
Forward Direction and Returning after Power ON
When using a linear scale with multiple zero points, the same logic as that explained earlier for a linear scale
with only one zero point applies to each zero point.
See
„ When Passing 1st Zero Point in Forward Direction and Returning after Power ON .
„ When Using a Linear Scale with Multiple Zero Points and Passing 1st Zero Point in
Reverse Direction and Returning after Power ON
When using a linear scale with multiple zero points, the same logic as that explained earlier for a linear scale
with only one zero point applies to each zero point.
See „ When Passing 1st Zero Point in Reverse Direction and Returning after Power ON .
To output the phase-C pulse when a detection point is passed in reverse, set the following parameter to 1.
Even after zero point 1 has first been passed
in the forward direction, the phase-C pulse is not
output here because zero point 2 is passed
in reverse direction. The phase-C pulse is also output when passing this point
in reverse, because the SERVOPACK has recorded
the position where the phase-C pulse was originally output
when first passing the position in the forward direction.
Scale count-up direction
Power ON
Time
Phase-C pulse output
Zero point 1 Zero point 1 Zero point 2 Zero point 2
Scale count-up direction
Power ON Time
Phase-C pulse output
Zero point 1 Zero point 3 Zero point 2 Zero point 2 Zero point 2
Phase-C pulse is not output when passing
a zero point in reverse direction.
Zero point 3