Mitsubishi MELSEC-A series User Manual

3. SPEWICATIONS /MELSEC-A
(1 ) Speed change area (X axis: address 40, Y axis: address 340)
To change the speed of traverse during positioning, jog operation
or home positioning, write the new speeds to these addresses. (To
be within the range shown in Table 3.7 page 3-23) This data over-
rides the speed set in the positioning data. Speed change is illustrated
in Fig. 3.24 below.
IV
Speed data written to speed change area
It
V = speed
t = time
Fig. 3.24 Speed Change Example
POINT j
Acceleration and deceleration cycles use the positioning data
speed regardless of any forced speed change.
The speed cannot be force changed under the following
circumstances:
0 after a deceleration start point;
0 in inching mode;
after a stop command or after the jog signal is turned off;
0 during interpolation positioning.
or
(2) Present value change area (X axis: address 41,42, Y axis: address 341, 342)
To change the present value data in the AD71, write the new value
to these addresses.
POINT I
The present value cannot be changed while the AD71 is
BUSY.
Present value data is two words long, one word data cannot
be written.
(3) Jog speed area (X axis: address 44, Y axis: address 344)
Specify the jog speed by writing speed data to these addresses.
This data may be written at any time.
3-32
IB lNAl 66101-A

Mitsubishi MELSEC-A series Specifications

General

Brand	Mitsubishi
Model	MELSEC-A series
Category	Controller
Language	English