Starting By Inputting External Command Signal; Restrictions; Data Required To Be Set - Mitsubishi Electric QD77MS User Manual

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Setting item

External command

function selection

: Set the external command signal (DI) in " [Pr.95] External command signal selection" at QD77MS16 use.

Refer to Chapter 5 "Data Used for Positioning Control" for details on the setting details.

Setting item

Positioning start No.

External command valid

[2] Starting by inputting external command signal

When starting positioning control by inputting the external command signal, the

start command can be directly input into the Simple Motion module. This allows

the variation time equivalent to one scan time of the PLC CPU to be eliminated.

This is an effective procedure when operation is to be started as quickly as

possible with the start command or when the starting variation time is to be

suppressed. To start positioning control by inputting the external command signal,

set the "data required to be set" and then turn ON the external command signal.

When starting by inputting the external command signal, the start complete signal

will not turn ON.

Set the following data in advance.

Set to "0: External positioning start".

Set "[Cd.3] Positioning start No." and enable "[Cd.8] External command valid" with

a program. Then, turn ON the external command signal (DI).

Set the positioning data No. to be started.

Set to "1: Validates an external command.".

Chapter 6 Sequence Program Used for Positioning Control

Setting details

Buffer memory address

n: Axis No.-1

Buffer memory address

n: Axis No.-1

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