Mitsubishi Electric MELSEC iQ-R RD75P4, User Manual

Page: 410 / 598

408
12 DATA USED FOR POSITIONING CONTROL
12.3 Basic Setting
[Pr.42] External command function selection
Select a function with which external command signals are associated.
■ Buffer memory address
The following table shows the buffer memory address of this area.
■
Default value
The default value is 0: Start with external command for all the axes.
To enable the external command signal, [Cd.8] External command valid must be set to 1.
[Pr.82] Start adjustment time
Set the amount of time from when a positioning start trigger signal is input to when the RD75 starts outputting pulses in units
of ms with Quick start function. The actual time elapsed before a pulse output starts depends on the start trigger.
• Start with an external command signal: 20

s + [Pr.82] Start adjustment time
• Start with a positioning start signal: 8

s + [Pr.82] Start adjustment time
■
Buffer memory address
The following table shows the buffer memory address of this area.
■
Setting range
The following table shows the setting range.
■ Default value
The default value is 0 for all the axes.
External command function
selection Setting
value Description
Start with external command 0 Starts a positioning operation by inputting an external command signal.
External speed change request 1 Changes the speed in the current positioning operation by inputting an external command signal. Set a
new speed value in [Cd.14] New speed value.
Speed-position/position-speed
switching request 2 Switches the control from the speed control to the position control in the speed-position switching control,
or from the position control to the speed control in the position-speed switching control by inputting an
external command signal. To enable speed-position switching, set [Cd.24] Speed-position switching
enable flag to 1. To enable position-speed switching, set [Cd.26] Position-speed switching enable flag to
1.
Skip request 3 Skips the current positioning operation by inputting an external command signal.
Buffer memory name Axis 1 Axis 2 Axis 3 Axis 4
[Pr.42] External command function selection 62 212 362 512
Buffer memory name Axis 1 Axis 2 Axis 3 Axis 4
[Pr.82] Start adjustment time 134 284 434 584
135 285 435 585
Setting value with engineering tools Setting value with programs
0.00 to 10000.00 (ms) 0 to 1000000 (

10
-2
ms)