PROGRAMMING2. CONTROLLED AXES
B–64144EN/01
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The increment system consists of the least input increment (for input) and
least command increment (for output). The least input increment is the
least increment for programming the travel distance. The least command
increment is the least increment for moving the tool on the machine. Both
increments are represented in mm, inches, or deg.
Set bit 1 (ISC) of parameter No. 1004 to select which increment system
to use. The setting of bit 1 (ISC) of parameter No. 1004 is applied to all
the axes. For example, when IS–C is selected, the increment system for
all the axes is IS–C.
Name of
increment system
Least input
increment
Least command
increment
Maximum
stroke
IS–B
0.001mm
0.0001inch
0.001deg
0.001mm
0.0001inch
0.001deg
99999.999mm
9999.9999inch
99999.999deg
IS–C
0.0001mm
0.00001inch
0.0001deg
0.0001mm
0.00001inch
0.0001deg
9999.9999mm
999.99999inch
9999.9999deg
The least command increment is either metric or inch depending on the
machine tool. Set metric or inch to the parameter INM (No.100#0).
For selection between metric and inch for the least input increment, G
code (G20 or G21) or a setting parameter selects it.
Combined use of the inch system and the metric system is not allowed.
There are functions that cannot be used between axes with different unit
systems (circular interpolation, cutter compensation, etc.). For the
increment system, see the machine tool builder’s manual.
Maximum stroke = Least command increment99999999
See table 2.4 Incremen System.
Table 2.4 Maximum strokes
Increment system Maximum stroke
Metric machine system ± 99999.999 mm
± 99999.999 deg
Inch machine system ± 9999.9999 inch
± 99999.999 deg
Metric machine system ± 9999.9999 mm
± 9999.9999 deg
Inch machine system ± 999.99999 inch
± 9999.9999 deg
NOTE
1 A command exceeding the maximum stroke cannot be
specified.
2 The actual stroke depends on the machine tool.
2.3
INCREMENT SYSTEM
2.4
MAXIMUM STROKE