Mitsubishi Electric MELSEC-QD75MH1 User Manual page 133

5 DATA USED FOR POSITIONING CONTROL
Item
Pr.16
Command in-position width
Pr.17
Torque limit setting value
Pr.18
M code ON signal output
timing
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.
To invalidate the software stroke limit, set the setting value to "upper limit
value = lower limit value". (The setting value can be anything.)
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.
To invalidate the software stroke limit, set the setting value to "current feed 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
Value set with peripheral device
The setting value range differs depending on the "
setting".
Here, the value within the [Table 1] range is set.
[Table 1] on right page
1 to 1000 (%)
0 : WITH mode
1 : AFTER mode
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
Md.31
from right) in "
ON at the set position of the command in-position signal.
Velocity
Position control start
Command
in-position flag
Value set with PLC program
Pr.1
1 to 1000 (%)
0
1
Status" turns OFF, and the "command in-position flag" turns
5 - 32
MELSEC-Q
Setting value buffer memory
Default
value
Axis 1 Axis 2 Axis 3 Axis 4
Unit
24
100
25
300 26
0 27
Command in-position width
Pr.16
ON
OFF
address
174 324 474
175 325 475
176 326 476
177 327 477