Near Pass Function - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

Near pass function

When the continuous path control is performed using the interpolation control, the near pass function is performed.
This function suppresses the machine vibration occurring at the time of switching the positioning data when the continuous
path control is performed using the interpolation control.
[Near pass function]
The extra movement amount occurring at the end of each positioning data being continuously executed is carried over to the
next positioning data. Since the alignment is not performed, the output speed drops are eliminated and the machine vibration
which occurs during the speed change can be suppressed.
Since the alignment is not performed, the operation is controlled in a path that passes near the position set in [Da.6]
Positioning address/movement amount.
Control details
The following figure shows the path of the continuous path control using the 2-axis linear interpolation control.
[Da.6] Positioning address
Positioning data No.3 tracking
V
Positioning data No.3
12 CONTROL SUB FUNCTION
224
12.3 Function to Compensate Control
Positioning data No.4 tracking
No dips in speed
t
Positioning data No.4