Operational Overview
The calculated offset is the distance travelled during deceleration ramp from the home velocity to a stop plus the distance travelled at the home velocity for 400µs. This extra distance is used to guarantee that the motor will not need to backup after the deceleration ramp.
The Specified Offset allows the user to choose an exact offset from the Home Reference.
Once the home reference is detected, the device will do whatever is necessary to reach the offset position. This may be as simple as a deceleration to a stop, a continuation at speed followed by a deceleration to a stop, or a deceleration followed by a move in the opposite direction.
To enter a specified home offset, select the Specified Offset option button. PowerTools Pro always displays the calculated offset value as a reference.
Figure 44: Specified Home Offset
Note
If the home reference is detected before the axis has reached its peak velocity, the axis will still continue to the precise offset position.
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