
B-63323EN-1/03 7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL
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7.1.7.3 Second feedrate override
Overview
These signals override the cutting feedrate after the cutting feedrate has
been overridden by first override *FV0 to *FV7.
There are two types of second feedrate override:
- 0 to 254% (in 1-% steps)
- 0 to 655.34% (in 0.01-% steps)
Which of the above is to be used can be specified using parameter APO
(bit 0 of No. 1403).
Signal
- Second feedrate override signal
*AFV0 to *AFV7 <G013>
[Classification] Input signal
[Function] Applies second feedrate override to the cutting feedrate. These eight
binary code signals correspond to the override values as follows.
∑
×
.
A
A*!8*" %|2| Vi
i
@
Vi=0 when *AFVi is "1" and
Vi=1 when *AFVi is "0"
These signals have the following weight.
*AFV0=1% *AFV1=2%
*AFV2=4% *AFV3=8%
*AFV4=16% *AFV5=32%
*AFV6=64% *AFV7=128%
If all signals are "0" or "1", the override is regarded as
0%. The override is selectable in steps over a range of 0 to 254%.
[Operation] For cutting feed during automatic operation, the actual feedrate is the
result of applying the first override and then the override value selected
with this signal to the specified feedrate.
The conditions under which the first override is assumed to be 100%
remain effective. If any of the conditions is satisfied, second feedrate
override is also assumed to be 100%.
- Second feedrate override signal B
*AFV0B to *AFV15B <G146 to G147>
[Classification] Input signal
[Function] Applies second feedrate override to the cutting feedrate. These sixteen
binary code signals correspond to the override values as follows.
∑
××
)>
A
)A*!8*" %|2| Vi
i
@
Vi=0 when *AFViB is "1" and
Vi=1 when *AFViB is "0"
If all signals are "0" or "1", the override is regarded as
0%. The override is selectable in 0.01 steps over a range of 0 to
655.34%.
[Operation] Has the same function as the second feedrate override signal.