Yaskawa J50M Instructions - 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