Справочник Пользователя для Mitsubishi Electronics QD77MS16

 
 

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Chapter 1    Product Outline

 

1.1.3 Mechanism of positioning control 

In the positioning system using the Simple Motion module, various software and 
devices are used for the following roles.   
The Simple Motion module realizes complicated positioning control when it reads in 
various signals, parameters and data and is controlled with the PLC CPU. 

 

Working
parts of a
machine

Creates control order and
conditions as a sequence 
program.

Stores the created program.

The PLC CPU outputs the start signal and
stop signal following the stored program
to the QD77MS.

QD77MS errors, etc., are detected.

GX Works2

PLC CPU

Outputs signals such as the start 
signal, external command signal and 
switching signal to the QD77MS.

QD77MS 
Simple Motion
module

External signal

Manual pulse generator/
Incremental synchronous encoder

Issues commands by
pulse output.

Sets the parameters and 
positioning data for control.

Outputs the start command for 
JOG operation, etc., during test
operation with the test function.

Monitors the positioning
operation.

Servo 
amplifier

Stores the parameter and data.

Outputs data to the servo amplifier according to the
instructions from the PLC CPU, GX Works2, external
signals and manual pulse generator.

Servo motor

Moves the machine according to commands from
the servo amplifier.

Receives positioning commands and control  
commands from QD77MS, and drives the servo motor.

Outputs the positioning data such as the servo motor   
to the QD77MS by the SSCNET    (/H).