3.
SPECIFICATIONS
/MELSEC-A
(1
2)
Positioning complete signal duration
Sets the duration of the "positioning complete signal" from the
AD71.
Positioning
is
considered to
be
complete after the
AD71
terminates
pulse output and the predetermined
dwell
time has elapsed.
(1
3)
Pulse output mode
Defines the output mode
as
A
type or
8
type.
0
Forward pulse or reverse
pulse,
two
pulse chains.
0
PLS+
SIGN
Forward and reverse feed pulses.
Travel
direction
is
controlled
by
direction sign
(SIGN).
I
I I
I
Low
in forward direction.
Direction Sign
High
in
reverse direction.
slGN
(Present
value increases
in
forward direction and
decreases in reverse.)
(1
4)
Direction setting
Selects
the direction for which the present value increases.
(Set
0
when using forward pulse output.
Set
1
when using reverse pulse
output.
)
(15)
Positioning mode
Specifies incremental, absolute, or incrementaVabsolute com-
0
In incremental mode positioning, positions
are
reached with
bination modes for positioning.
reference to the previous position.
(See
Fig.
3.6.)
Zero
point
A
-
B
To
move
from
A to
6.
travel
is
defined
as
point
A
t
so
many
pulses.
Fig.
3.6
Incremental
Method
.
.-
i
3-14
IB
INAl
66101-A
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