
B-65150E/04 4. SERVO FUNCTION DETAILS
− 159 −
#7 #6 #5 #4 #3 #2 #1 #0
1960
−
OVR8
2018
−
OVR8 (#2) 1: The format of the stage 2 acceleration override is determined.
1725
−
Stage 2 acceleration override
2114
−
[Valid data range] 0 to 32767
When the stage 2 acceleration override function is used, the stage 2
acceleration amount of two-stage backlash acceleration is found from
the following formula:
(Stage 2 acceleration amount)
(Stage 2 override setting)
= × 1 + α ×
256
Here, let α be a circular acceleration, R be a radius (mm), F be a
circular feedrate (mm/min), and P be a detection unit (mm). Then, α
can be expressed as:
2
α = (F/60 × 0.008)
2
P
R
So, the stage 2 override setting and acceleration amount are related as
follows:
256 (Stage 2 acceleration amount)
= × − 1
α (Stage 2 acceleration amount setting)
(4) Neglecting backlash acceleration during feeding by the handle
#7 #6 #5 #4 #3 #2 #1 #0
1953
−
BLCU
2009
−
BLCU (#6) 1: To enable backlash acceleration only during cutting feed
When the two-stage backlash function is used, this setting is effective
with the following servo software series and editions:
Series 9070/K(11) and subsequent editions
Series 9080/K(11) and subsequent editions
Series 9090/A(01) and subsequent editions
Series 90A0/C(03) and subsequent editions
(Stage 2 acceleration
amount setting)
(Stage 2
override
setting)
NOTE
Stage 2 override is effective for stage 2 offset.