Yaskawa J50M Instructions User Manual
Page 237
(b) Where 2nd-step acceleration and deceleration are
used :
8
RATE
V a
-
T I M E
—
(c) Supplement for setting when 2nd-step
used
:
tb :
t’a :
acceleration/deceleration constant to
set a multiple of 8 ms
2nd-step acceleration/deceleration constant to
set a multiple of 8 ms
acceleration/deceleration constant.
The
of calculation can be rounded.
Therefore, Va and
must be set in such a way
that the value to be rounded will be as small as
possible.
(Example of X-axis)
Calculate it first.
. . . . . . Numbers below decimal point omitted.
8
Calculate it first.
“b = (#6280 - #6292) X
. . ..-. Numbers below decimal point omitted.
Mp = 100
Actual rapid traverse :
7.5
Actual changing speed :
X 7.5
Actual acceleration/deceleration time is as set by
parameter.
Notes :
1. By omitting the resultant calculation, rapid tra-
verse setting may differ from actual speed. (The
part below the
point is omitted for ‘a or
t’b value. In results, an error is generated in
or
2. MP indicates #6450, #6451, #6452 and #6453.
Input Status
Rapid Traverse
ROV
1
Y-axis
1
1
0
# 6 2 8 0
#628 1
# 6 2 8 2
# 6 2 8 3
Set speed
Set speed
Set speed
Set speed
1 Oo%
o
1
0
(
1
0
0
o
0
0
#623 1
Set
speed
Fo
o
0
1
#6266
Set speed
#6267
speed
F2
X–axi s
Y-axis
I
Z-axis
I
1
4th axis
#6286 to #6289 :
Specifies the first-stage time constant in linear
respectively, on the X-, Y-,
and 4th-axes.
Setting : “l” = 1 ms
Setting range : 8 to 32767
FEED RATE
(RAPID TRAV-
ERSE RATE)
I
T I M E
229