Mitsubishi Electric MELSEC-Q QD75M User Manual page 560

12 CONTROL SUB FUNCTIONS
[Path during continuous path control]
[Axis 1 output speed]
[Axis 2 output speed]
Fig. 12.10 Path and output speed of various axes when movement direction varies during continuous
path control
[2] Precautions during control
(1) If the movement amount designated by the positioning data is small when
the continuous path control is executed, the output speed may not reach the
designated speed.
(2) If continuous path control is carried out, 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.
Axis 2
V
Positioning data
No. 1
V
Positioning data
No. 1
Positioning data No.2
Positioning data No.1
Axis 1 (reference axis)
Output suddenly reverses.
Positioning data No.2
Positioning data No.2
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MELSEC-Q
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