11 MANUAL CONTROL

MELSEC-Q

11.4.4 Creating a program to enable/disable the manual pulse generator operation

A sequence program must be created to execute a manual pulse generator operation. Consider the "required control data setting", "start conditions" and "start time chart" when creating the program.

The following shows an example when a manual pulse generator operation is started for axis 1.

Required control data setting

The control data shown below must be set to execute a manual pulse generator operation. The setting is carried out with the sequence program.

 

 

 

 

Setting

 

Buffer memory address

 

 

Setting item

Setting details

Axis

Axis

Axis

Axis

 

 

value

 

 

 

 

 

1

2

3

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual pulse

 

Set the manual pulse generator 1 pulse input

1522

1622

1722

1822

 

Cd.20

 

generator 1 pulse

1

 

 

magnification.

1523

1623

1723

1823

 

 

 

input magnification

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual pulse

 

Set "1: Enable manual pulse generator

 

 

 

 

 

 

 

 

operation". (Set "0: Disable manual pulse

 

 

 

 

 

Cd.21

 

generator enable

1 (0)

1524

1624

1724

1824

 

 

generator operation" when finished with the

 

 

 

flag

 

 

 

 

 

 

 

 

 

manual pulse generator operation.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

Start conditions

The following conditions must be fulfilled when starting. The required conditions must also be assembled in the sequence program, and the sequence program must be configured so the operation will not start if the conditions are not fulfilled.

 

 

 

 

 

Device

 

 

Signal name

 

Signal state

 

 

 

 

 

 

 

Axis

Axis

 

Axis

Axis

 

 

 

 

1

2

 

3

4

 

PLC READY signal

ON

PLC CPU preparation completed

 

Y0

 

 

QD75 READY signal

ON

QD75 preparation completed

 

X0

 

 

 

 

 

 

 

 

 

 

 

Synchronization flag

ON

QD75 buffer memory

 

X1

 

Interface

The access is possible.

 

 

Axis stop signal

OFF

Axis stop signal is OFF

Y4

Y5

 

Y6

Y7

signal

 

 

 

 

 

 

 

 

Start complete signal

OFF

Start complete signal is OFF

X10

X11

 

X12

X13

 

 

 

BUSY signal

OFF

QD75 is not operating

XC

XD

 

XE

XF

 

 

 

 

 

 

 

 

 

 

Error detection signal

OFF

There is no error

X8

X9

 

XA

XB

 

M code ON signal

OFF

M code ON signal is OFF

X4

X5

 

X6

X7

 

Drive unit READY signal

ON

Drive unit preparation completed

 

 

 

External

Stop signal

OFF

Stop signal is OFF

 

 

 

signal

Upper limit (FLS)

ON

Within limit range

 

 

 

 

 

 

 

 

 

 

 

 

Lower limit (RLS)

ON

Within limit range

 

 

 

 

 

 

 

 

 

 

 

 

If the PLC CPU is set to the asynchronous mode in the synchronization setting, this must be inserted in the program for interlocking. If it is set to the synchronous mode, it must not be inserted in the program for interlocking because it is turned ON when the PLC CPU executes calculation.

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Mitsubishi Electronics QD75D, QD75P user manual Manual pulse Set the manual pulse generator 1 pulse input