
B–64113EN–1/01
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
412
NOTE
1 This parameter is effective only in linear and circular
interpolation. In polar coordinate and cylindrical
interpolation, the maximum feedrate for all axes specified in
parameter No.1431 is effective.
2 If a setting for each axis is 0, the maximum feedrate
specified in parameter No.1431 is applied to all axes and the
feedrate is clamped at the maximum feedrate.
3 In a mode other than the AI advanced preview control / AI
contour control mode or advanced preview mode, the
maximum cutting feedrate specified in parameter No.1422
or No.1430 is applied and the feedrate is clamped at the
maximum feedrate.
#7
1601
#6 #5 #4 #3 #2
OVB
#1 #0
[Data type] Bit
OVB Block overlap in cutting feed
0: Blocks are not overlapped in cutting feed.
1: Blocks are overlapped in cutting feed.
Block overlap outputs the pulses remaining at the end of pulse
distribution in a block together with distribution pulses in the next block.
This eliminates changes in feedrates between blocks.
Block overlap is enabled when blocks containing G01, G02, or G03 are
consecutively specified in G64 mode. If minute blocks, however, are
specified consecutively, overlap may not be performed.
The following pulses in block F2 are added to the pulses remaining at the
end of pulse distribution in block F1.
(Number of pulses to be added) = F2
(Number of pulses required at the end of block F1)
F1
When F1 = F2
F
F1 F2
t
When block overlap is disabled
F
F1 F2
t
When block overlap is enabled