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14
Epsilon EP-I Indexing Drive and FM-2 Indexing Module Reference Manual
Time Scale Group
Time Base
Select either minute or second as the time scale for the configuration. The default time scale is minutes. If the selected time
scale is seconds, then the velocity units will appear as
user units/sec. If the selected time scale is minutes, the velocity units will appear as
user units/minute.
If the selected time scale is seconds, then the accel/decel units will appear as user units/sec
2
. If the selected time scale is
minutes, the accel/decel units will appear as
msec/(1000 (user units)/min) or msec/(k (user units)/min). Therefore, for accel/decel units, the default is msec/kRPM (the
same as previous versions of the FM-2 module).
Acceleration Group
Decimal Places
This will specify the number of digits after the decimal place to be used in all Acceleration/Deceleration parameters.
Position View
The Position View allows you to set up and view the parameters related to drive positioning. In, Position has been selected
in the Hierarchy Tree. The right side of the view is divided into groups. An explanation of the groups and their functions is
provided below.
Figure 10: Position View
Index In Position Group
In Position
The In Position (InPosn) source will activate at the end of a move if the absolute value of following error is less than or equal
to the In Position Window for the In Position Time.
In Position Window
The absolute value of the Following Error must be less than or equal to this value at the end of an index in order for the InPosn
source to activate. This window is set in units specified in the User Units View.
For example:
The In Position window is set to 0.0025 revs. At the end of an index, the following error is calculated to be 0.0012
revolutions. Therefore, the InPosn output will activate.