5 DATA USED FOR POSITIONING CONTROL

MELSEC-Q

1)Generally, the OP is set at the lower limit or upper limit of the stroke limit.

2)By setting the upper limit value or lower limit value of the software stroke limit, overrun can be prevented in the software. However, an emergency stop limit switch must be installed nearby outside the range.

3)To invalidate the software stroke limit, set the setting value to "upper limit value = lower limit value". (The setting value can be anything.)

4)When the unit is "degree", the software stroke limit check is invalid during speed control (including speed-position switching control, position-speed switching control) or during manual control.

Pr.14

Software stroke limit selection

Set whether to apply the software stroke limit on the "current feed value" or the "machine feed value". The software stroke limit will be validated according to the set value.

Pr.15

Software stroke limit valid/invalid setting

Set whether to validate the software stroke limit during JOG/Inching operation and manual pulse generator operation.

 

 

 

 

Setting value, setting range

 

Setting value buffer memory

 

 

 

 

Default

 

address

 

 

 

Item

 

 

 

 

 

 

 

 

 

 

Value set with peripheral device

Value set with sequence

value

Axis 1

Axis 2

Axis 3

Axis 4

 

 

 

 

 

 

 

 

program

 

 

 

 

 

 

 

 

The setting value range differs depending on the "

 

Unit

 

 

 

 

 

 

 

 

Pr.1

 

 

 

 

 

 

 

 

setting".

 

 

 

 

 

 

 

 

 

 

Pr.16

 

Here, the value within the [Table 1] range is set.

100

24

174

324

474

 

Command in-position width

 

 

 

 

 

 

25

175

325

475

 

 

[Table 1] on right page

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.17

 

1 to 500 (%)

1 to 500 (%)

300

26

176

326

476

 

Torque limit setting value

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.18

 

0 : WITH mode

0

 

 

 

 

 

 

 

 

 

M code ON signal output

 

1 : AFTER mode

1

 

 

 

0

27

177

327

477

 

 

 

 

 

 

 

 

 

 

 

timing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pr.16

Command in-position width

Set the remaining distance that turns the command in-position ON. The command in-position signal is used as a front-loading signal of the positioning complete signal. When positioning control is started, the "command in-position flag" (3rd flag

from right) in "

Md.31

Status" turns OFF, and the "command in-position flag" turns

ON at the set position of the command in-position signal.

Speed

Position control start

Command in-position flag

Pr.16 Command in-position width

ON OFF

5 - 30

Page 118
Image 118
Mitsubishi Electronics QD75P Pr.14 Software stroke limit selection, Pr.15 Software stroke limit valid/invalid setting