Parameter Area - Mitsubishi MELSEC-A A1SD71-S2 User Manual

3.
SPECIFICATIONS
MELSEC-A
When the positioning speed is lower than the parameter speed limit,
the acceleration and deceleration times are comparatively ahort.
Therefore, the maximum positioning speed must be either equal to the
parameter speed limit or an approximate value.
The acceleration and deceleration times are valid for zero return,
positioning, and jog operations.
For interpolation positioning, the acceleration and deceleration times
for a master axis are valid. (The acceleration ane deceleration times
for a slave axis are ignored.)
Definition of a master axis and a slave axis during interpolation position-
i ng
Speed control mode Positioning control mode
Master axis
Axis whose travel distance is short Axis with a slow positioning speed Slave axis
Axis whose travel distance is long Axis with a fast positioning speed
I
I
Acceleration and deceleration times can be set within the range
of
64
to 5000 msec
by
using an AlSD71.
When inputting from a teaching module (peripheral device
+
SWOGP-
AD71 P, AD71TU), 64 to 4999 msec can be set.
If
the acceleration and deceleration times are set within the range of
5000
to 50000 msec, data must be written to
the
parameter area
(X
axis: address 7876 and
Y
axis: address 7896) using a sequence
program. (Hexadecimal input)
(17) Deceleration time for an emergency stop gives details about an
emergency stop in a shorter time than the deceleration times given
above.
(12) Positioning complete signal duration
Sets the duration of the "positioning complete signal" from the A1 SD71.
Positioning
i s
considered to be complete after the AlSD71 terminates
pulse output and the predetermined dwell time has elapsed.
A
positioning complete signal is not output in the speed control mode.
(I 3) Pulse output mode
Defines the output mode as
A
type or
B
type.
Forward pulse or reverse.pulse, two pulse chains.
I
Forward feed pulse
I
m F
PULSE F
U U U U U / A I
Reverse feed pulse
PULSE
- - , - m - u -
PULSE R
&Pe
I
PLS
+
SIGN
Feed ulse
&
Direction sign
m
Forward and reverse feed pulses. Travel direction is
controlled by direction sign
m).
I
I U
-
direction
25ms
L
Low in forward direction.
High in reverse direction.
(Present value increases in forward direction and
decreases in reverse.)
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