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Starting/ending For Synchronous Control - Mitsubishi Electric RD77MS2 User Manual

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

Starting/ending for synchronous control

Set the parameters for synchronous control for each output axis to start synchronous control.
The status changes to synchronous control after the 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 status
[Md.321] Synchronous encoder
axis current value per
cycle
[Md.407] Cam axis current
value per cycle
[Md.20] Feed current value
Synchronous control system control data
Setting item
Setting details
[Cd.380]
• Synchronous control begins 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 The range from axis 1 to 2 is valid in the 2-axis module, from axis 1 to 4 is valid in the 4-axis module, and from axis 1 to 8 is valid in the
8-axis module.
Starting method for synchronous control
Synchronous control can be started by turning the target axis bit from OFF to ON in "[Cd.380] Synchronous control start" after
setting the parameters for synchronous control.
"5: Analyzing" is set in "[Md.26] Axis operation status" at the synchronous control start, and the parameters for synchronous
control are analyzed. The BUSY signal turns ON after completion of analysis, and "15: Synchronous control" is set in "[Md.26]
Axis operation status".
Start the input axis operation after confirming that "15: Synchronous control" is set in "[Md.26] Axis operation status".
Ending method for synchronous control
Synchronous control can be ended by turning the target axis bit from ON to OFF in "[Cd.380] Synchronous control start" after
the input axis operation is stopped.
The BUSY signal turns OFF at the synchronous control end, and "0: Standby" is set in "[Md.26] Axis operation status" at the
output axis stop.
Synchronous control can also be ended by turning the target axis bit from ON to OFF in "[Cd.380] Synchronous control start"
during the input axis operation. However, it is recommended to end after stopping the input axis operation since the output
axis stops immediately.
Refer to the following for the stop operation of output axis at the synchronous control end.
Page 23 Stop operation of output axis
Standby (0)
Analyzing (5)
Synchronous control (15)
Setting value
■Set the target axis in 16 bits.
*1
(bit0: axis 1 to bit15: axis 16
)
OFF : Synchronous control end
ON : Synchronous control start
1 OUTLINE OF SYNCHRONOUS CONTROL
1.3 Operation Method of Synchronous Control
Standby (0)
t
t
t
Default value
Buffer memory
address
0
36320
1
21

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