Mitsubishi Electric MELSEC-Q QD75M User Manual page 615

12 CONTROL SUB FUNCTIONS
Setting item
Target position
Cd.27
Value (new ad-
dress)
Target position
Cd.28
value (new speed)
Target position
Cd.29 change request
flag
Refer to Section 5.7 "List of control data" for details on the setting details.
Positioning start signal [Y10]
PLC READY signal [Y0]
All axis servo ON [Y1]
QD75 READY signal [X0]
Start complete signal [X10]
BUSY signal [XC]
Positioning complete signal [X14]
Error detection signal [X8]
Cd.27
Cd.28
Cd.29
[3] Method of setting target position change function from PLC CPU
The following table and chart show the example of a data setting and PLC
program used to change the target position of the axis 1 by the command from
the PLC CPU, respectively. (example in which the target position value and
command speed are changed to a new target position of "300.0 m" and a new
command speed of "10000.00 mm/min".)
(1) The following data is set.
(Referring to the starting time chart shown in item (2) below, carry out the
setting with the PLC program shown in item (3).)
Setting
value
3000 Set the new address.
1000000 Set the new speed.
1 Set "1: Carry out speed change".
(2) The following shows the time chart for target position change.
V
Target position value (new address)
Target position value (new speed)
Target position change request flag
Fig. 12.40 Time chart for target position change from PLC CPU
Setting details
0
1
12 - 76
MELSEC-Q
Buffer memory address
Axis Axis
1 2
1534 1634
1535 1635
1536 1636
1537 1637
1538 1638 1738 1838
Dwell time
3000
1000000
0
Axis Axis
3 4
1734 1834
1735 1835
1736 1836
1737 1837
t