Mitsubishi MELSEC-Q QD77MS, User Manual

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Chapter 9 Major Positioning Control
(2) The following table shows the items that must be set to use the near-point dog
signal (DOG) as speed-position switching signals.
Buffer memory address
Setting item
Setting
value
Setting details
QD77MS2
QD77MS4
QD77MS16
Cd.45
Speed-position
switching device
selection
1
Use the near-point dog signal
for switching from speed
control to position control
1566+100n 4366+100n
(Note): The setting is not required for "
Pr.42
External command function selection
" and "
Cd.8
External command
valid
".
Refer to Section 5.7 "List of control data" for information on the setting details.
(3) The following table shows the items that must be set to use "
Cd.46
Speed-
position switching command
" as speed-position switching signals.
Buffer memory address
Setting item
Setting
value
Setting details
QD77MS2
QD77MS4
QD77MS16
Cd.45
Speed-position
switching device
selection
2
Use the "
Cd.46
Speed-position
switching command
" for
switching from speed control
to position control
1566+100n 4366+100n
(Note): The setting is not required for "
Pr.42
External command function selection
" and "
Cd.8
External command
valid
".
Refer to Section 5.7 "List of control data" for information on the setting details.
Changing the position control movement amount
In "speed-position switching control (INC mode)", the position control movement
amount can be changed during the speed control section.
(1) The position control movement amount can be changed during the speed
control section of speed-position switching control (INC mode).
A movement amount change request will be ignored unless issued during the
speed control section of the speed-position switching control (INC mode).
(2) The "new movement amount" is stored in "
Cd.23
Speed-position switching
control movement amount change register" by the sequence program during
speed control.
When the speed-position switching signal is turned ON, the movement amount
for position control is stored in "
Cd.23 Speed-position switching control
movement amount change register".
(3) The movement amount is stored in the "
Md.29
Speed-position switching
control positioning amount" of the axis monitor area from the point where the
control changes to position control by the input of a speed-position switching
signal from an external device.