Mitsubishi Electric MELSEC Q Series User Manual page 199

Input Speed-position switching command signal (CHANGE) at the area where the speed is stable (constant speed status).
When a servomotor is used, the actual movement amount after the switchover to position control is "Set movement amount
+ Accumulated pulse amount". If the signal is input during acceleration or deceleration, the operation stop position varies
due to the variation in the accumulated pulse amount.
(7) Parameter and positioning data setting
The following table lists the parameter and positioning data to be set, setting condition, and check timing.
Set other parameters if necessary.
Setting item
0: Position control mode
Positioning mode 1: Speed-position control switch
Pr.9
mode
Positioning
address P1
0 to 2147483647pulse
Da.2
(movement
amount)
Positioning
1 to 4000000pulse/s
Da.3
speed V1
(8) Speed-position movement amount change
The movement amount for position control can be changed during speed control of the speed-position control
switch mode.
Set the new movement amount in "
during speed control. The value in "
amount for position control at the input of Speed-position switching command signal (CHANGE).
Default
Setting range
value
0
0pulse
0pulse/s
New speed-position movement amount" using a sequence program
Cd.6
New speed-position movement amount" is reflected as the movement
Cd.6
CHAPTER 9 MAJOR POSITIONING CONTROL
Check timing
Setting condition
of the set data
The data can be set
anytime.
Note that the set data at
the rise (ON) of a
positioning start signal
When a
(Y22, Y23) are used for
positioning start
the operation. If the data
signal (Y22, Y23)
are written when BUSY
is turned on
signal (X14) is on, the
data will be accepted at
the rise (ON) of the next
positioning start signal
(Y22, Y23).
9
Buffer
memory
address
(decimal)
25
302
303
304
305
197