Mitsubishi Electric QD77MS User Manual page 543

(4) When either of three axes exceeds the speed limit, that axis is controlled with
the speed limit value. The speeds of the other axes are limited at the ratios of
"[Da.8] Command speed".
(Examples)
Setting item
Speed limit
[Pr.8]
value
Command
[Da.8]
speed
With the settings shown above, the operation speed in speed control is as
follows.
Axis 1: 4000.00 mm/min (Speed is limited by [Pr.8].)
Axis 2: 3000.00 mm/min (Speed is limited at ratios in axes 1, 2, and 3
Axis 3: 2000.00 mm/min (Speed is limited at ratios in axes 1, 2, and 3
(Note): Operation runs at speed 1 when a reference axis speed is less than 1
as a result of speed limit.
In addition, when "[Pr.7] Bias speed at start" is set, the set value will
be the minimum speed.
(5) An error "No command speed (error code: 503)" will occur if a current speed
(-1) is set in "[Da.8] Command speed".
(6) The software stroke limit check is not carried out when the control unit is set to
"degree".
Chapter 9 Major Positioning Control
Axis
Axis 1 setting
4000.00mm/min
8000.00mm/min
command speeds.)
command speeds.)
9 - 85
Axis 2 setting Axis 3 setting
5000.00mm/min 6000.00mm/min
6000.00mm/min 4000.00mm/min