Starting/Ending Of Synchronous Control - Mitsubishi Electric MELSEC iQ-R RD78G4 User Manual

Precautions
• Mechanical elements such as limit switches are considered as already installed.
• Parameter settings for positioning control apply to all controls with the Motion module.
• Be sure to execute the home position return when the home position return request flag is ON.

Starting/ending of synchronous control

Set the advanced synchronous control parameters for each output axis to start synchronous control.
The status changes to synchronous control after the advanced synchronous control parameters are analyzed at the start of
synchronous control, and the output axes synchronize with input axis operations.
[Cd.380] Synchronous
control start
(Target axis bit)
BUSY signal
[Md.26] Axis operation
Standby (0)
status
[Md.321] Synchronous
encoder axis
position value
per cycle
[Md.407] Cam axis position
value per cycle
[Md.20] Command position
value
Synchronous control system control data
Setting item Setting details
[Cd.380] • Synchronous control starts if the target axis bit
Synchronous is turned ON.
control start • Synchronous control ends if the bit is turned
OFF during synchronous control.
Fetch cycle: Operation cycle
*1 When the synchronous control analysis mode is executed simultaneously or the synchronous control analysis mode and the
synchronous control start are executed simultaneously for multiple axes, perform the setting for the synchronous control start in batches
for each word. If the axes are set continuously in bits, the synchronous control analysis mode and the synchronous control start may not
operate depending on the timing.
*2 The range from axis 1 to 4 is valid in the 4-axis module, from axis 1 to 8 is valid in the 8-axis module, and from axis 1 to 16 is valid in the
16-axis module.
Analyzing (5) Synchronous control (15)
Setting value
■Set the target axis in bit.
Set with the following buffer memory
addresses.
• Buffer memory address: 36320
(bit0: axis 1 to bit15: axis 16
Buffer memory address: 36320
b15 b12
OFF : Synchronous control end
ON : Synchronous control start
Default
value
*1
0
*2
)
b8 b4 b0
Axis 1 to 16
1 OUTLINE OF ADVANCED SYNCHRONOUS CONTROL
1.3 Operation Method of Synchronous Control
Standby (0)
t
t
t
Buffer memory address
Axis 1 to axis 16
36320
23
1