13 automatic corner override – Yaskawa J50M Instructions User Manual
Page 133

(19)
(20)
(21)
(22)
(23)
H o w e v e r ,
#6472, maximum spindle speed at
the gear using solid tap, is the upper limit
(to be clamped).
Creep Speed Command for Spindle Indexing
#6463
Range : 1 to 32767
Unit 1 = 500 pulses/s
Standard setting : 10
However, #6472,
maximum spindle speed at
the gear using solid tap, is upper limit (to
be clamped).
Spindle
Spindle
#6464
Stop Confirmation
I n d e x i n g
Range : 0 to 255
= 8 ms
Standard setting :
Timer for
Original Position for Spindle Indexing
#6465
Range : 0 to
4095
Unit 1 = 1 pulse
Standard setting : 0
Revolving Speed to Confirm Spindle Stop
#6473
I t s e t s
spindle
loop of
spindle
Range : 0 to
30
Unit 1 = 1 rein-l
Standard setting : 30
t h e r e v o l v i n g s p e e d t o c o n f i r m
stop at the time of forming position
spindle with G93.
Position loop of
is formed after G93 is specified and
the spindle speed decreases to a
-
value lower
than this parameter.
Set the value lower
than the parameter to confirm zero speed at
the spindle drive side.
Return speed in solid tap
#6470
Range O to 255
Unit 1 = O. 1 times
When O is specified, the magnification is 1
time.
Items (18) to (23) cover the parameter about spindle
indexing at the time of
G93.
SLPC input
I
I
Spindle
speed
command
I
I
#6462
I
I
C
phase
#6464 - -
Spindle indexing and parameter
Note :
In case of setting original position O, it stops on C phase
after one revolution at creep speed after detecting C
phase.
2.13 AUTOMATIC CORNER OVERRIDE
The load at the corner increases when machining
the inner surface.
In conventional machines, the cutting speed
was reduced by the override switch, or the speed
was commanded by dividing the corner rounding
block in several blocks.
Corner override is a function where the
override automatically changes in a single-block
command.
(1)
(a)
Command format
Non-modal G code G106
used.
G 1 0 6 G 0 1 X . . . Y . . . I . . .
(or J... )
F . . . .
G106 :
Non-modal G code
I
: Cutting margin (X-axis direction)
J
: Cutting margin (Y-axis direction)
CUTTING MARGIN
I
( b )
(2)
F i g .
2.80
Override command
:
step F feedrate override %
(1 to
100)
# 6 2 1 7 :
2nd step F feedrate override %
(1 to
100)
When the cutting margin is larger than the tool
radius, #6216 is always calculated as 100%.
(Refer to the Note. )
Operation
This function automatically calculates the position in
the corner where the load on the tool starts to
change, from the tool radius and cutting margin.
The position where the load is applied differs
according to the size of the tool radius and cutting
margin.
This is why the following be considered.
(a) When the cutting margin is larger than the tool
radius
(b) When the tool radius is larger than or equal to
the cutting margin
(c) When the tool radius is larger than the cutting
margin
125