Mitsubishi Electric MELSEC-L LD75D, User Manual

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CHAPTER 9 MAJOR POSITIONING CONTROL
9
9.
2 Set
ting t
he Pos
itioning
D
at
a
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.
t
V
BUSY signal
[XC,XD]
OFF
ON
Positioning start signal
[Y10]
OFF
ON
Positioning complete signal
[X14,X15]
OFF
Axis stop signal (stop command)
(Either Y4 or Y5)
OFF
ON
Does not turn ON even
when control is stopped
by stop command.
OFF
ON
Md.31
In speed control flag
Da. 8
Referense axis (axis1)
t
V
Command speed Da. 8
Interpolation axis (axis 2)
Command speed
Status: b0