108
3 MAJOR POSITIONING CONTROL
3.2 Setting the Positioning Data
Speed control
In "speed control" ("[Da.2] Control method" = Forward run: speed 1 to 4, Reverse run: speed 1 to 4), control is carried out in
the axis direction in which the positioning data has been set by continuously outputting pulses for the speed set in "[Da.8]
Command speed" until the input of a stop command.
The eight types of speed control includes "Forward run: speed 1 to 4" in which the control starts in the forward run direction,
and "Reverse run: speed 1 to 4" in which the control starts in the reverse run direction.
Refer to the following for the combination of the reference axis and the interpolation axis.
Operation chart
The following charts show the operation timing for 1-axis speed control with axis 1 and 2-axis speed control with axis 2 when
the axis 1 is set as the reference axis.
The "in speed control" flag ([Md.31] Status: b0) is turned ON during speed control.
The "Positioning complete signal" is not turned ON.
■
1-axis speed control
RD77MS4 operation example
t
V
BUSY signal
[X10]
OFF
ON
Positioning start signal
[Y10]
OFF
ON
Positioning complete signal
([Md.31] Status: b15)
OFF
OFF
ON
[Da.8] Command speed
Does not turn ON even when control is stopped
by stop command.
OFF
ON
In speed control flag
([Md.31] Status:b0)
[Cd.180] Axis stop
Содержание RD77MS16
Страница 1: ...MELSEC iQ R Simple Motion Module User s Manual Application RD77MS2 RD77MS4 RD77MS8 RD77MS16 ...
Страница 2: ......
Страница 316: ...314 9 COMMON FUNCTIONS 9 4 External Input Signal Select Function Program example ...
Страница 317: ...9 COMMON FUNCTIONS 9 4 External Input Signal Select Function 315 9 ...
Страница 574: ...572 13 PROGRAMMING 13 4 Positioning Program Examples Parameter initialization program Flash ROM write program ...
Страница 575: ...13 PROGRAMMING 13 4 Positioning Program Examples 573 13 Error reset program Axis stop program ...
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