Mitsubishi A1SD75P1-S3, User Manual

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MELSEC-A
1 PRODUCT OUTLINE
1.1.3 Mechanism of positioning control
Positioning control using the AD75 is carried out with "pulse signals". (The AD75 is a
module that generates pulses). In the positioning system using the AD75, various
software and devices are used for the following roles. The AD75 realizes complicated
positioning control when it reads in various signals, parameters and data and is
controlled with the PLC CPU.
Creates control order and
conditions as a sequence
program.
Stores the created program.
The AD75 outputs the start signal and
stop signal following the stored program.
AD75 errors, etc., are detected.
GPP function
software
package
PLC CPU
Outputs signals such as the start
signal, stop signal, limit signal and
control changeover signal to the AD75.
AD75
software
package
AD75 positioning
module
External signal
Manual pulse
generator
Issues commands by
transmitting pulses.
Sets the parameters and
positioning data for control.
Outputs the start command for
JOG operation, etc., during test
operation with the test mode.
Monitors the positioning operation.
Servo
amplifier
Stores the parameter and data.
Outputs pulses to the servo according to the
instructions from the PLC CPU, AD75 software
package, external signals and manual pulse generator.
Receives pulse commands from AD75, and
drives the motor.
Outputs the drive unit READY signal and
zero point signal to the AD75.
Motor
Workpiece
Carries out the actual work according to commands
from the servo.
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