1.3 Operation Method Of Synchronous Control; Synchronous Control Execution Procedure - Mitsubishi Electric MELSEC iQ-R RD78G4 User Manual

1.3
Operation Method of Synchronous Control

Synchronous control execution procedure

The synchronous control is executed using the following procedure.
STEP 1
Preparation
STEP 2
STEP 3
Start
STEP 4
synchronous
control
Monitor the
synchronous
STEP 5
control and
change the
control.
STEP 6
Complete
synchronous
control
*1 Page 28 INPUT AXIS MODULE
*2 Page 75 CAM FUNCTION
*3 Page 91 ADVANCED SYNCHRONOUS CONTROL, Page 144 Synchronous Control Initial Position Parameters
*4 Page 176 Sample Program for Synchronous Control
1 OUTLINE OF ADVANCED SYNCHRONOUS CONTROL
22

1.3 Operation Method of Synchronous Control

Set the following parameters.
• Common parameters ([Pr.82], [Pr.152])
• Positioning parameters ([Pr.1] to [Pr.4],
[Pr.7] to [Pr.22], [Pr.25] to [Pr.42], [Pr.81],
[Pr.83], [Pr.84], [Pr.90], [Pr.95],
[Pr.116] to [Pr.119], [Pr.122], [Pr.123])
• Extended parameters ([Pr.91] to [Pr.94])
Set "input axis parameters" for advanced
synchronous control.
[Pr.300] to [Pr.304], [Pr.320] to [Pr.329]
*1
*2
Set the cam data.
*3
Set "synchronous parameters" for advanced
synchronous control. ([Pr.400] to [Pr.468])
Create a program to start / change control / stop
synchronous control.
(Set "[Cd.380] Synchronous control start", start and
*4
stop the input axis operation, and change the
reduction ratio.)
Write the program, which is created
in STEP1 and STEP2, to the CPU module.
Turn ON the synchronous control start bit for the
axis that starts synchronous control.
Check that synchronous control is in progress.
Operate the input axis.
Monitor the synchronous control operation status.
Execute the control change for the speed change
ratio, cam No., etc.
Stop the input axis.
Check that the input axis is stopped and turn
OFF the synchronous control start bit for the axis
that stops synchronous control.
End of control
One of the following two methods can be used.
Method (1)
: Directly set (write) the parameters
in the Motion module using the engineering tool.
Method (2)
: Set (write) the parameters from the CPU module
to the Motion module using the program.
Turn ON the target axis bit in "[Cd.380]
Synchronous control start" and start synchronous
control by the program in STEP 2.
Check that synchronous control is in progress in
"[Md.26] Axis operation status".
Operate the input axis by the program in STEP 2.
Monitor the control using the engineering tool.
Change the control by the program in STEP 2.
Stop the input axis by the program in STEP 2.
Turn OFF the target axis bit in "[Cd.380]
Synchronous control start" to stop synchronous
control by the program in STEP 2.