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Direction of Travel Setup
This setting allows the user to match the NMS300 to the actual direction of travel of any of the 3 axes
tted to the machine.
The two settings available for each axis are and
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Press the axis select key next to the ‘X’, ‘Y’ or ‘Z’ axis to cycle through the options
Example:
If the current setting is and the travel is positive from right to left, changing the
setting to will reverse the direction to measure positive from left to right
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E----
Radius / Diameter (measure setup)
The radius /diameter function allows the user to display actual (radius) or twice-actual (diameter)
measurements for each axis.
This function is generally used in turning applications, such as the cross travel on a lathe where the diam-
eter reading is displayed rather than the radius.
There are two setting for each axis:
Radius
Diameter
rad
dia
Press the axis select key next to the ‘X’, ‘Y’ or ‘Z’ axis to cycle through the options
Error Compensation
The digital readout (DRO) system helps to improve productivity. It decreases the number of scrapped
parts, as there is no concern about making mistakes related to counting the revolutions on the dials. The
DRO system also helps to eliminate some errors related to ball-screw backlash.
The DRO system will operate to its published accuracy, provided all components are in working order and
properly installed. Field calibration is not necessary.
Accuracy problems with machined parts may be caused by machine error, DRO system error, or a com-
bination of both. The rst step in determining the source of error is to check the DRO system. To do this
compare the movement of the Newall reader head to the position reading shown on the display. A high
accuracy standard, such as a laser interferometer is required. A dial indicator can be used to check short
distances, but a laser provides the best results. If a dial indicator must be used, be sure it is the highest
available accuracy.
Setting up the unit
