
1.AXIS CONTROL B-63783EN-1/01
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1.2.2 Increment System
General
The increment system depends on the combination of the least input
increment (input increment) and least command increment (output
increment). The least input increment is the least increment for the
programmed amount of movement. The least command increment is
the least increment for the amount of movement of the machine.
The unit of each least increment is mm, inch, or deg.
As indicated in Table 1.2.2(a), five increment systems are supported.
For each axis, an increment system can be set using bit 0 (ISA), bit 1
(ISC), bit 2 (ISD), or bit 3 (ISE) of parameter No. 1012. To switch
between metric input and inch input for the least input increment, a G
code (G20/G21) or bit 0 (INI) of parameter No. 0010 can be used.
Whether to use the metric system or inch system for the least command
increment is determined for each machine; bit 1 (INM) of parameter No.
1002 is used to select either the metric system or inch system.
A combination of the metric system and inch system is not allowed.
Some functions (such as circular interpolation and cutter
compensation) cannot be used for axes for which different increment
systems are used.
IS-D and IS-E are optional.
NOTE
The unit (mm, inch) in the table is a diameter value
for diameter specification (with bit 3 (DIA) of
parameter No. 1006 set to 1); for radius
specification, the unit is a radius value.
Table. 1.2.2 (a) Increment Systems
Increment
system name
Least input
increment
Least command
increment
Maximum stroke
0.01 mm 0.01 mm 999999.99 mm
0.001 inch 0.001 inch 99999.999 inch
IS-A
0.01 deg 0.01 deg 999999.99 deg
0.001 mm 0.001 mm 99999.999 mm
0.0001 inch 0.0001 inch 9999.9999 inch
IS-B
0.001 deg 0.001 deg 99999.999 deg
0.0001 mm 0.0001 mm 9999.9999 mm
0.00001 inch 0.00001 inch 999.99999 inch
IS-C
0.0001 deg 0.0001 deg 9999.9999 deg
0.00001 mm 0.00001 mm 9999.99999 mm
0.000001 inch 0.000001 inch 999.999999 inch
IS-D
0.00001 deg 0.00001 deg 9999.99999 deg
0.000001 mm 0.000001 mm 999.999999 mm
0.0000001 inch 0.0000001 inch 99.9999999 inch
IS-E
0.000001 deg 0.000001 deg 999.999999 deg