9
9-14
FM 351 Positioning Function Module
EWA 4NEB 720 6001-02
9.6 Setting Set Actual Value
With the setting Set actual value you allocate a new coordinate to the current
encoder location. The working range is projected to a different physical range
on the axis. Therefore, you do not change any coordinate values.
The displacement of the working range is determined by ACT
new
-
ACT
current
.
ACT
new
is the specified value.
ACT
current
is the actual value at the time of execution.
Take note of the following requirements for this setting:
The axis must be synchronized on calling the function.
The specified actual value must be located within the working range.
The value must be entered in the DB for calling the setting by an FC.
Select the FC ACT_VAL for setting Set actual value.
The following applies to a linear axis: The magnitude of the displacement
produced from (ACT
new
- ACT
current
) must be less than or equal to the
magnitude of the permissible number range.
The following applies to a rotary axis: The specified actual value must be
more negative (smaller) than the rotary axis end and greater than or equal
to zero.
Using an example of Set actual value to 300 mm you can see how this set-
ting projects the travel range to a certain physical position on the axis. It pro-
duces the following effects:
The actual position is set to the new actual value.
The working range is displaced physically on the axis.
The individual points retain their original value, but are located at new
physical positions.
Definition
Requirements
Effects of the
Setting
Operating Modes and Settings
To Next Page
Loading...
