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MELSEC-Q
9 MAJOR POSITIONING CONTROL
(4) When either of three axes exceeds the speed limit, that axis is contro lled with
the speed limit value. The speeds of the other axes are limited at t he ratios of
"Da.8 Command speed".
(Examples)
Axis
Setting item
Axis 1 setting Axis 2 setting Axis 3 setting
Pr.8 Speed limit
value 4000.00mm/min 5000.00mm/min 6000.00mm/min
Da.8 Command
speed 8000.00mm/min 6000.00mm/min 4000.00mm/min
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
command speeds).
Axis 3: 2000.00 mm/min (Speed is limited at ratios in axes 1, 2, and 3
command speeds).
(5) An error "No command speed" (error code: 503) will occur if a current spe ed
(-1) is set in " Da.8 Command speed".
(6) The software stroke limit check is not carried out when the control u nit is set to
"degree".