
B-65270EN/05 APPENDIX D.PARAMETERS RELATED TO HIGH-SPEED AND HIGH-PRECISION OPERATIONS
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• Parameters that need tuning based on the machine type
Standard setting value
Parameter
No.
Standard
setting
Speed
priority I
Speed
priority II
Description
1478 400.0 500.0 1000.0
Allowable speed difference (mm/min) in acceleration-dependent
on speed difference at corners
1635 24 16 16 Time constant (ms) for acc./dec. after interpolation
1656 64 48 32
Time constant (ms) for bell-shaped acc./dec. before interpolation
(portion with the time fixed)
1660 700.0 2000.0 4000.0
Acceleration of linear-/bell-shaped acc./dec. before interpolation
(portion with the acceleration fixed)
(Acceleration is specified in mm/s
2
units for individual axes.)
1663 525.0 1500.0 3000.0
Allowable acceleration (mm/s
2
) during acceleration-dependent
deceleration (HPCC mode)
(Acceleration is specified in mm/s
2
for individual axes.)
1665 525.0 1500.0 3000.0
Allowable acceleration (mm/s
2
) at arc interpolation during
acceleration-dependent deceleration (non-HPCC mode)
(Acceleration is specified in mm/s
2
for individual axes.)
• Parameters that do not usually need tuning so often and can be left at fixed
values
Parameter
No.
Standard
setting value
Description
1483 100.0 Lower speed limit to acceleration-dependent deceleration (HPCC mode) (mm/min)
1491 100.0
Lower speed limit to deceleration acceleration-dependent (non-HPCC mode)
(mm/min)
1517#6 0
Speed difference- or acceleration-dependent deceleration type
0: Compatible with the 15B (by making the most of allowable speed difference and
acceleration for each axis)
1: Fixed speed regardless of the direction of movement as long as the same contour
is involved.
1600#4 0
0: Linear- or bell-shaped acc./dec. after interpolation enabled
(Note 1)
1: Exponential acc./dec. after interpolation enabled
1603#6 1/0
When using the function for changing the time constant of bell-shaped acc./dec.
before interpolation, set 1.
1473
mm / inch
10000.0/3937.0
Reference speed in the function for changing the time constant of bell-shaped
acc./dec. before interpolation (mm/min / inch/min)
2401#6 0
Setting this parameter to 1 enables look-ahead acc./dec. before interpolation and
multibuffer when the power is switched on and in the cleared state. Fine HPCC is
also enabled if available.
If it is reset to 0, it is turned on with the G05.1Q1 command.
7565#7 0
Setting this parameter to 1 causes a specified speed to be ignored and assumes that
a speed set in parameter No. 7567 is specified
7567 0
Specified clamp value in the fine HPCC mode (mm/min (input unit))
If the parameter setting is 0, no clamp takes place except for the maximum cutting
speed specified in parameter No. 1422.
7565#4 0/1
Set this parameter to 1 if the cutting load-based deceleration function is to be
enabled. (This parameter is used if the mechanical rigidity of the Z-axis is low.)
7697#1 0/1 When using the slant type for override by cutting load, set 1.
(Note 2)
7698 80
Override of area 1 in deceleration by cutting load (This setting is unnecessary if bit 4
of parameter No. 7565 is set to 0 or bit 1 of parameter No. 7697 is set to 0.) (%)
(Note
2)