HEIDENHAIN TNC 410 ISO Programming - Manual (Page 437)

HEIDENHAIN TNC 410, TNC 426, TNC 430 411
12.12 Unit o
f Measur
ement
12.12 Unit of Measurement
Function
This MOD function determines whether the coordinates are displayed
in millimeters (metric system) or inches.
n To select the metric system (e.g. X = 15.789 mm) set the Change
mm/inches function to mm. The value is displayed to 3 decimal
places.
n To select the inch system (e.g. X = 0.6216 inch) set the Change mm/
inches function to inches. The value is displayed to 4 decimal places.
If you activate inch display, the TNC shows the feed rate in inch/min.
In an inch program you must enter the feed rate large by a factor of 10.