6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL

6.5 Program details

6.5.1Initialization program

[1]OPR request OFF program

MELSEC-Q

This program forcibly turns OFF the "OPR request flag" (

Md.31

Status : b3)

which is ON.

When using a system that does not require OPR, assemble the program to cancel the "OPR request" made by the QD75 when the power is turned ON, etc.

Data requiring setting

Set the following data to use the OPR request flag OFF request.

 

 

 

Setting item

Setting

Setting details

Buffer memory address

 

 

 

value

Axis 1

Axis 2

Axis 3

Axis 4

 

 

 

 

 

 

 

 

OPR request flag OFF

1

Set to "1: Turn OPR request flag OFF".

1521

1621

1721

1821

 

Cd.19

 

 

 

request

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refer to Section 5.7 "List of control data" for details on the setting details.

Time chart for OPR OFF request

 

 

ON

 

PLC READY signal

[Y0] OFF

ON

 

 

 

 

QD75 READY signal

[X0] OFF

 

 

 

 

ON

 

OPR request OFF flag

OFF

 

 

[ Md. 31 Status: b3]

 

 

 

Cd. 19 OPR request flag OFF request

0

1

0

Fig. 6.1 Time chart for OPR OFF request

[2] External command function valid setting program

This program is used to validate the "external command signal" beforehand when using the external command functions (external start, speed change, speed- position switching, position-speed switching, skip). (Set which function to use

beforehand in "

Pr.42

External command function selection".)

Set the following data to validate the "external command signal".

Setting item

Setting

value

Setting details

Buffer memory address

Axis 1 Axis 2 Axis 3 Axis 4

 

 

 

External command valid

1

Set to "1: Validate external command".

1505

1605

1705

1805

 

Cd.8

 

 

 

 

 

 

 

 

 

 

Refer to Section 5.7 "List of control data" for details on the setting details.

 

 

 

 

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Mitsubishi Electronics QD75P, QD75D user manual External command function valid setting program, Data requiring setting