Mitsubishi Melsec-A Series User Manual page 41

3. SPECIFICATIONS
/MELSEC
POINT
I
For continuous positioning, pattern 11 should not be used
more than nine times consecutively. Where a large number of
consecutive 11 patterns
are
being used, they must be broken
down by placing 01 pattern data every nine 11 patterns. (e.g.
pattern 11 = 9 times, pattern 01 = 1 time, pattern 11 = 9
timer, pattern 00
=
1 time).
Always set pattern 00 in the final data block.
While pattern
11
is continuing, the direction of movement
and
the
positioning method should remain unchanged, only
after pattern 01 or
00
may these be changed. I f the speed is
changed after deceleration has started, the new speed is
ignored and, if the M
code
has been set in WITH mode, the
"M code ON" signal is not
given.
During positioning using pattern 11, dwell time data and M
code will be ignored.
Interpolation positioning cannot be specified when pattern
11 is being used.
(b) Positioning method
Incremental or absolute positioning must be specified assuming
that
it
has not been set in the parameters (item 15, page
3-9).
Parameter data takes precedence over this data.
POINT
I
The positioning method cannot be c h a n d if pattern 11 has
been specified.
The positioning method can be changed after patterns
00
or
01 have been executed.
(c) Positioning direction
For incremental mode positioning, the direction of travel relative
to the previous address must be specified.
(0
specifies forward,
increasing address numbers and
1
specifies reverse, decreasing
address numbers.)
In absolute mode, the positioning direction is ignored.
3-26
IB 1NA) €61014