Mitsubishi Electric MELSEC-Q QD75M User Manual page 588

12 CONTROL SUB FUNCTIONS
Example
Acceleration/deceleration time
Cd.12
change during speed change,
enable/disable selection
Cd.10 New acceleration time value
Cd.11 New deceleration time value
Setting item
New acceleration
Cd.10
time value
New deceleration
Cd.11
time value
Acceleration/
deceleration time
change during
Cd.1 2
speed change,
enable/disable
selection
Refer to Section 5.7 "List of control data" for details on the setting details.
(4) If the "new acceleration/deceleration time" is set to "0" and the speed is
changed after the "new acceleration/deceleration time" is validated, the
operation will be controlled with the previous "new acceleration/deceleration
time".
V
Disabled
(5) The acceleration/deceleration time change function is disabled for JOG
operation and inching operation.
POINT
If the speed is changed when an acceleration/deceleration change is enabled, the
"new acceleration/deceleration time" will become the acceleration/deceleration time
of the positioning data being executed. The "new acceleration/deceleration time"
remains valid until the changeover to the next positioning data. (The automatic
deceleration processing at the completion of the positioning will also be controlled
by the "new acceleration/deceleration time".)
[3] Setting the acceleration/deceleration time change function
To use the "acceleration/deceleration time change function", write the data
shown in the following table to the QD75 using the PLC program.
The set details are validated when a speed change is executed after the details
are written to the QD75.
Setting
value
Set the new acceleration time.
Set the new deceleration time.
Set "1: Acceleration/deceleration time change
1
enable".
Speed change
Speed change
Speed change
Controlled with the acceleration/
deceleration time in the parameter.
Enabled
0 1000
Setting details
12 - 49
MELSEC-Q
New acceleration/deceleration
time ( Cd. 10 , Cd. 11 )
0
Buffer memory address
Axis Axis Axis
1 2
1508 1608 1708
1509 1609 1709
1510 1610 1710
1511 1611 1711
1512 1612 1712 1812
t
Axis
3 4
1808
1809
1810
1811