
6.NTERPOLATION FUNCTION B-63783EN-1/01
- 600 -
7677 Minimum tolerance of a block executed with smooth interpolation
[Input type] Setting input
[Data type] Real
[Unit of data] mm, inch (input unit)
[Minimum unit of data] Depends on the increment system of the reference axis.
[Valid data range] Nine digits of the least input increment (see Standard Parameter Setting
Table (A).)
(For IS-B, -999999.999 to +999999.999)
Set the tolerance to be checked as a condition for performing smooth interpolation.
When the tolerance specified in a block is smaller than this setting, the block is
executed without smooth interpolation.
Normally, set a value near one-tenth of the maximum tolerance (parameter No.
7676). When a value of 0.0 is set, the minimum tolerance is assumed to be one-
tenth of the maximum tolerance (parameter No. 7676). When a negative value is
set, the minimum tolerance is assumed to be 0.0.
Alarm and message
Number Message Contents
PS0990 SPL:ILLEGAL AXIS COMMAND An illegal axis was specified for spline interpolation or
smooth interpolation.
This alarm is also generated when an axis other than those
used for spline interpolation is specified. An "axis used for
spline interpolation" refers to the axis specified in the block
following the block in which the G06.1 G code is specified.
When smooth interpolation is executed, the axis specified
by the G5.1Q2 G code is illegal.
PS0993 SPL:CAN'T MAKE VECTOR A 3-dimensional tool offset vector cannot be generated.
- In generation of the 3-dimensional tool offset vector from
P2 onwards, the previous point and the following point
are on the same line, and that line is parallel with the 3-
dimensional tool offset vector for the previous point.
- The end point and the 2 previous point are the same in
generation of the 3-dimensional tool offset vector by the
end point for smooth interpolation and spline
interpolation.
Reference item
Series15i/150i-MB
Operator’s Manual
(Programming)
(B-63784EN)
II-4.16 Smooth interpolation