Speed Control - Mitsubishi Electric A1SD75P1-S3 User Manual

9 MAIN POSITIONING CONTROL

9.2.8 Speed control

In "speed control"(" Da.2 Control method" = Forward run: speed limit, Reverse run:
speed limit), 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.7 Command
speed" until the input of a stop command.
The two types of speed control are "Forward run: speed limit" in which the control
starts in the forward run direction, and "Reverse run: speed limit" in which control starts
in the reverse run direction.
Da. 7 Command speed
Positioning start signal
BUSY signal
Positioning complete signal
Stop command
In speed control flag
Md.40 Status:b0
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Operation chart
The following chart shows the operation timing for speed control. The "in speed
control flag" ( Md.40 Status: b0) is turned ON during speed control.
V
ON
OFF
[Y10,Y11,Y12]
ON
OFF
[X4,X5,X6]
OFF
[X7,X8,X9]
OFF
ON
OFF
Fig. 9.9 Speed control operation timing
ON
9 - 46
MELSEC-A
t
Does not turn ON even
when control is stopped
by stop command