Mitsubishi Electric MELSEC-L LD75D, User Manual

Page: 447 / 818

445
CHAPTER 9 MAJOR POSITIONING CONTROL
9
9.
2 Set
ting t
he Pos
itioning
D
at
a
(7) Changing the speed control command speed
In "position-speed switching control", the speed control command speed can be changed during the position
control.
• The speed control command speed can be changed during the position control of position-speed switching
control. A command speed change request will be ignored unless issued during the position control of the
position-speed switching control.
• The "new command speed" is stored in "[Cd.25] Position-speed switching control speed change register" by
the program during position control. This value then becomes the speed control command speed when the
position-speed switching signal turns ON.
● The machine recognizes the presence of a command speed change request when the data is written to "[Cd.25] Position-
speed switching control speed change register" with the program.
●
The new command speed is validated after execution of the position-speed switching control before the input of the
position-speed switching signal.
● The command speed change can be enabled/disabled with the interlock function in speed control using the "position-
speed switching latch flag" ([Md.31] Status: b5) of the axis monitor area.
Stop signal
t
Speed change
enable
Position-speed switching
signal
ON
OFF
Position
control
Speed
control
Position control start Position-speed switching control start
0 V2
OFF
Position-speed switching
latch flag
Status: b5
ON
V3
V2 becomes the speed control command speed.
Setting after the position-speed
switching signal ON is ignored.
Position-speed
switching control
speed change register
Md.31
ON
Cd.25
OFF