
B-65270EN/05 APPENDIX D.PARAMETERS RELATED TO HIGH-SPEED AND HIGH-PRECISION OPERATIONS
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(1) When HRV2 and fine ACC./Dec. is used (Series 16i/18i/21i/20i/0i)
• Using advanced preview control in the Series 16i/18i/21i
• Using AI advanced preview control in the Series 21i/20i/0i
(servo software Series 90B0)
For the above cases, make the following settings for using HRV2
control and fine acc./dec.
• Parameters that do not usually need tuning so often and can be left at fixed
values
Parameter No.
FS16i and so on
Standard setting value Description
2003#3 1 Enables PI control function
2003#5 1 Enables backlash acceleration
2004
0X000011
(Note 1)
HRV2 current control
2005#1 1 Enables feed-forward
2006#4 1 Uses the latest feedback data for velocity feedback.
2007#6 1 Enables FAD (Fine acc./dec.)
2015#6 1 Enables stage-2 backlash acceleration.
2016#3 1 Enables variable proportional gain in the stop state
2017#7 1 Enables velocity loop high cycle management function
2018#2 1
Changes the second override format for stage-2
backlash acceleration.
2040 Standard parameter for HRV2
(Note 2)
Current integral gain
2041 Standard parameter for HRV2
(Note 2)
Current proportional gain
2092 10000 Advanced preview (position) feed-forward coefficient
2119
2
(detection unit of 1 µm)
20
(detection unit of 0.1µm)
For variable proportional gain function in the stop state :
judgment level for stop state
(specified in detection units)
2146 50 Stage-2 backlash acceleration end timer
2202#1 1 Cutting/rapid traverse velocity loop gain variable
2209#2 1 Enables FAD of linear type.
NOTE
1 Keep the bit indicated with X (bit 6) at the standard
setting.
2 For motors not supporting the HRV2 standard
parameters, change the parameter settings to the
settings for HRV2 according to the instructions
described in Section G.4.
• Parameters whose settings must be changed according to the size of the
machine but needn’t tuning once set up
Standard setting value
Parameter
No.
Standard
setting
Speed
priority I
Speed
priority II
Description
2109 24 16 16 FAD time constant