Mitsubishi Electric MELSEC iQ-R RD78G4 - Starting;Ending of Synchronous Control

1 OUTLINE OF ADVANCED SYNCHRONOUS CONTROL
1.3 Operation Method of Synchronous Control
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1
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.
Synchronous control system control data
*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.
Setting item Setting details Setting value Default
value
Buffer memory address
Axis 1 to axis 16
[Cd.380]
Synchronous
control start
• Synchronous control starts if the target axis bit
is turned ON.
• Synchronous control ends if the bit is turned
OFF during synchronous control.
Fetch cycle: Operation cycle
■Set the target axis in bit.
*1
Set with the following buffer memory
addresses.
• Buffer memory address: 36320
(bit0: axis 1 to bit15: axis 16
*2
)
OFF : Synchronous control end
ON : Synchronous control start
0 36320
Standby (0) Analyzing (5) Standby (0)Synchronous control (15)
[Md.20] Command position
value
[Md.407] Cam axis position
value per cycle
[Md.321] Synchronous
encoder axis
position value
per cycle
[Cd.380] Synchronous
control start
(Target axis bit)
[Md.26] Axis operation
status
BUSY signal
t
t
t
Buffer memory address: 36320
b0
b15 b12
b8
b4
Axis 1 to 16