Indexing Position Operation; Concept Of Index - Parker P Series User Manual

8.2 Indexing Position Operation

8.2.1 Concept of Index

An index consists of the following components : Distance, Speed, Acceleration,
Deceleration, Registration Distance, Registration Speed, Repeat Count, Dwell Time,
Next Index, Action. Below are descriptions of each of the components.

Distance
Distance refers to the moving distance of each index (Unit: UU): it can be either
absolute or relative.
The final distance for absolute movement is the difference between the moving
distance and the current position. The final distance for relative movement is the
movement distance.
The final moving distance is the size of the colored area under the
acceleration/deceleration pattern below.

Speed
Speed determines the target speed for index operation (Unit: UU/s).
Speed always has positive value regardless of the movement distance. The
positivity/negativity of the target speed is determined based on the
positivity/negativity of the movement distance.
When the moving distance is not sufficient compared with the set value of speed and
acceleration/deceleration, a triangular pattern may be generated, which means the
speed failed to reach the target speed.
Parker Hannifin
P series User Guide 166