Mitsubishi Electric RD77MS16, User Manual

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8 CONTROL SUB FUNCTIONS
8.2 Sub Functions Specifically for Machine Home Position Return
Movement speed during home position shift
When using the home position shift function, the movement speed during the home position shift is set in "[Pr.56] Speed
designation during home position shift". The movement speed during the home position shift is selected from either the
"[Pr.46] Home position return speed" or the "[Pr.47] Creep speed". For the acceleration/deceleration time, the value specified
in "[Pr.51] Home position return acceleration time selection" or "[Pr.52] Home position return deceleration time selection" is
used.
The following drawings show the movement speed during the home position shift when a mechanical home position return is
carried out by the near-point dog method.
■ Home position shift operation at the "[Pr.46] Home position return speed" (When "[Pr.56]
Speed designation during home position shift" is 0)
■
Home position shift operation at the "[Pr.47] Creep speed" (When "[Pr.56] Speed designation
during home position shift" is 1)
Near-point dog
Zero signal
Home position
Home position
V
[Pr.46] Home position
return speed
[Pr.44] Home position
return direction
When the "[Pr.53] Home position
shift amount" is positive
When the "[Pr.53] Home position
shift amount" is negative
Machine home position
return start
[Pr.47] Creep speed
Near-point dog
Zero signal
Home position
Home position
V
When the "[Pr.53] Home position
shift amount" is positive
When the "[Pr.53] Home position
shift amount" is negative
Machine home position
return start
[Pr.44] Home position
return direction