Mitsubishi Electric MELSEC iQ-R Series User Manual page 214

• For the long axis speed specification, set speed limit value is valid for the Velocity input which is as the long
axis speed. For details, refer to the following.
Page 318 Speed Limit
• Note that the vector speed when specifying the long axis speed may be larger than the speed limit value.
(Ex.)
When setting a value like the following in the 2-axis linear interpolation, the vector speed exceeds the speed
limit value.
The setting items and the setting values are shown below.
• Axis 1 movement amount (D1): 100 [pulses]
• Axis 2 movement amount (D2): 200 [pulses]
• Long axis speed (V): 50 [pulses/s]
• Speed limit value: 55 [pulses/s]
In the above case, the reference axis is axis 2 whose movement amount is the largest, and the control is
carried out based on the positioning speed specified to the axis 2. The positioning speed and the vector speed
of each axis are shown below.
• Axis 1 positioning speed: 100 / 200  50 = 25 [pulses/s]
• Axis 2 positioning speed: 50 [pulses/s]
• Vector speed: (25
Axis 1 positioning speed
The vector speed becomes a value that exceeds the speed limit value 55.
6 AXIS CONTROL FUNCTION
212
6.4 Multiple Axes Positioning Control
2 2
+ 50 ) = 55.9 [pulses/s]
Axis 2 positioning speed
Vector speed