
B–63683EN/01
11. CONTROL FUNCTION
187
For nibbling commands, constant positioning time control and parameter
selection for the X– and Y–axes are performed at one of three levels
according to the nibbling pitch. This function, however, performs
three–level switching based on external signals SNP and SNP2.
The following table lists the correspondence between the external signals
and parameters:
Level SNP SNP2 Pn Tn TPFn PGn PK1Vn PK2Vn PGT PIIP
1 0 1 16800
16802
16804
16807
16810
16813
16816
16819
16822 16825
2 1 0 16801
16803
16805
16808
16811
16814
16817
16820
16823 16826
16843 16054#3
3 0 0 16190
16191
16806
16809
16812
16815
16818
16821
16824 16827
Pn Nibbling pitch parameter No. (top: metric input, bottom: inch input)
Tn Positioning time parameter No. (top: X–axis, bottom: Y–axis)
TPFn output timer parameter No. (top: X–axis, bottom: Y–axis)
PGn Position gain parameter No. (top: X–axis, bottom: Y–axis)
PK1Vn Velocity loop gain (integral) parameter No. (axis–type parameter
common to X– and Y–axes)
PK2Vn Velocity loop gain (proportional) parameter No. (axis–type parameter
common to X– and Y–axes)
PGT Position gain switching speed parameter No. (common to X– and
Y–axes)
PIIP PI/IP control selection parameter No. (axis–type parameter common to
X– and Y–axes)
11.7
NIBBLING
PARAMETER
SWITCHING
CONTROL USING
EXTERNAL SIGNALS
Overview
Specifications
Correspondence
between external signals
and parameters