2-Axis Speed Control - Mitsubishi Electric MELSEC-L LD75P User Manual

9.2.15

2-axis speed control

In "2-axis speed control" ("[Da.2] Control system" = Forward run: speed 2, Reverse run: speed 2), control is carried out
in the 2-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 two types of 2-axis speed control are "Forward run: speed 2" in which the control starts in the forward run
direction, and "Reverse run: speed 2" in which control starts in the reverse run direction.
(Refer to  Page 359, Section 9.1.6 for the combination of the reference axis with the interpolation axis.)
(1) Operation chart
The following chart shows the operation timing for 2-axis (axes 1 and 2) speed control with axis 1 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.
Da. 8
Da. 8
Positioning start signal
[Y10]
BUSY signal
[XC,XD]
Positioning complete signal
[X14,X15]
Axis stop signal (stop command)
(Either Y4 or Y5)
In speed control flag
Md.31
V
Interpolation axis (axis 2)
Command speed
V
Command speed
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
Status: b0
CHAPTER 9 MAJOR POSITIONING CONTROL
Referense axis (axis1)
ON
t
t
Does not turn ON even
when control is stopped
by stop command.
9
419