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3. SPECIFICATIONS
MELSEGA
Positioning speeds are multiplied by 6.1 (PLS/sec).
For example, when a positioning speed is 200 (PLSkec), the maximum speed
to
be output from
AlSD71 is as follows:
200
=
6.1 x n.. ..n
=
32.7868..
..
Therefore, the maximum speed is 6.1 x 32
=
195.2 (PLSlsec).
(3) Positioning address
Set the positioning address in accordance with the positioning method.
When using the incremental method,
set the travel distance in the
position control mode. When using the absolute method, set the target
position.
Set the travel distance after receiving a control switching signal in the
speed/positioning control switching mode.
(4)
Dwell time
The dwell time is the period of time indicated in Fig. 3.21 below.
BUSY
(X14)
I
I
I
I
Speed graph
I
For pattern
00
U
Dwell
~
~
Fig. 3.21 Pattern 00
During interpolation positioning,
the longer dwell time value is valid
irrespective of the distance travelled (e.g.
if X
axis
=
1
sec and
Y
axis=
1.5 sec, 1.5 sec is valid.)
3-36
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