Installation manual

Operation Manual for LCD Digital Readouts Page 20 of 48
Advanced Functions
The following additional functions & operations are
available on General Purpose Digital Readouts
See PROGRAMMING PARAMETER (Pr23).
ABSOLUTE VS INCREMENTAL MEASUREMENTS.
The Digital Readout has two measurement “indexes”. One
is referred to as ABS and the other is INC. The ABS
measurement setting is designed to allow the user to set
an “absolute“ zero point on the Digital Readout referenced
from a fixed or known position. The INC measurement
setting is designed to take relative or “incremental” distance measurements
from one arbitrary point to another. The settings operate independently
allowing separate position offsets to be programmed for ABS and INC. The
Absolute position of the measuring system is not lost when using the
Incremental (INC) settings and will be recalled and displayed when the Readout
is returned to Absolute (ABS) mode. The terms “Absolute” and
“Incremental” are used here to describe a measurement function or
technique and should not be confused with the terms Absolute and
Incremental when used in reference to the type of “Measuring
Technology” employed by different ProScale products.
ABS
The Digital Readout automatically enters ABS (Absolute) mode when power is
first applied. This is indicated by the ABS
ABSABS
ABS symbol in the upper left corner of the
LCD. While in the ABS mode, all position measurements are related to the
current system reference point. To enter the INC
(Incremental) mode, press & hold the ABS/INC
key for 1.2 seconds.
NOTE: To change the timing of this key to a
momentary press to enter INC mode, See
Programming Parameter (Pr22).
INC
While in the INC (Incremental mode), the INC
INCINC
INC symbol is shown in the upper left
corner of the LCD. When the INC mode is initially entered, the displayed
position will change to reflect a new reference point at the current position of
the Encoder. This is typically a position of zero (0) but may be changed by
using the + or – Key to enter an offset. Moving the Encoder in either direction
will display the distance moved from the initial Incremental starting point (plus
any offset). To complete another incremental measurement from the new
position, momentarily press the ABS/INC key. The Digital Readout will again
change to 0.00 (or the previously programmed offset). To return to the ABS
mode, press and hold the ABS/INC key for 3 seconds.