4. DESCRIPTION OF PARAMETERS
B–63980EN/01
48
#7
1601
#6 #5
NCI
#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
NCI Inposition check at deceleration
0 : Performed
1 : Not performed
1620
Time constant T used for linear acceleration/deceleration in rapid traverse for
each axis
[Data type] Word axis
[Unit of data] ms
[Valid data range] 0 to 4000
Specify a time constant used for acceleration/deceleration in rapid tra-
verse.
4.12
PARAMETERS OF
ACCELERATION/
DECELERATION
CONTROL