Mitsubishi Electric AJ65BT-D75P2-S3 User Manual page 478

12 CONTROL AUXILIARY FUNCTIONS
[Path during continuous path control]
[Axis 1 output speed]
(a) Positioning address pass mode
V
Positioning data
No. 1
[Axis 2 output speed]
(a) Positioning address pass mode
V
Positioning data
No. 1
Fig. 12.11 Path and output speed of various axes during continuous path control
(2) Precautions during control
(a) If the movement amount designated by the positioning data is small when
the continuous path control is executed in the near pass mode, the output
speed may not reach the designated speed.
(b) If continuous path control is carried out in the near pass mode, the output
will suddenly reverse when the reference axis movement direction changes
from the positioning data No. currently being executed to the next
positioning data No.
If the sudden output reversal affects the mechanical system, carry out
control with continuous positioning control.
(When the reference axis movement direction changes in the positioning
address pass mode, the operation automatically decelerates.)
Axis 2
Output does not suddenly reverse.
Positioning data No.2
Positioning data No.2
Positioning data No.2
Positioning data No.1
(b) Near pass mode
V
Positioning data
No. 1
t
(b) Near pass mode
V
Positioning data
No. 1
t
12 - 20
MELSEC-A
Axis 1 (reference axis)
Output suddenly reverses.
Positioning data No.2
Positioning data No.2
t
t