4
Operation
These indicators may be fully controlled from four simple push buttons:-
Function select
Must be pressed with another button to select required function.
Pressed on its own, returns from selected function to operation, and stores edited value to
RAM.
Twin Datum
When pressed on its own, adds the Datum Offset to the actual position. Press again to
subtract.
Certain machines, such as panel saws with turnover stops, require two datums with a fixed
offset that can be readily toggled.
Incremental / Absolute operation
When pressed on its own, switches between absolute and incremental operation.
In many applications dimensions are given on drawings, which are relative dimensions. Most
position indicators display only the absolute position and it is necessary to calculate the new
absolute position
e.g. 1928.7 + 325.9 = 2254.6
This is laborious and can lead to errors.
This can be avoided by the use of this range of indicators. The operator can select
= "Incremental". This sets the display to zero. Operator can now move 325.9 and re-
select
= "Absolute" ( the display now reads 2254.6 )
F
F
