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Synchronous Control Analysis Mode - Mitsubishi Electric RD77MS2 User Manual

Melsec iq-r simple motion module.
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Synchronous Control Analysis Mode

With synchronous control analysis mode, parameters are only analyzed for synchronous control when there is a command to
start synchronous control. This mode is used to confirm the synchronous positions of the output axes in order to align axes
with position control before starting synchronous control.
If the target axis bit is ON in "[Cd.381] Synchronous control analysis mode" when starting synchronous control (turning the
target axis bit from OFF to ON for "[Cd.380] Synchronous control start"), operation enters synchronous control analysis mode.
When the synchronization position analysis is completed, the synchronous control monitor data ([Md.400] to [Md.425]) is
updated, and the target axis bit in "[Cd.380] Synchronous control start" turns OFF.
The busy signal is not turned ON during synchronous control analysis mode.
When starting synchronous control with synchronous control analysis mode, the following error does not occur.
• Cam axis feed current value restoration disable (error code: 1C29H)
[Cd.380] Synchronous control start
(Target axis bit)
[Cd.381] Synchronous control
analysis mode
(Target axis bit)
Synchronous control monitor data
([Md.400] to [Md.425])
Positioning start
BUSY signal (OFF during analyzing)
[Md.26] Axis operation status
Synchronous control system control data
Setting item
Setting details
• Synchronous control begins if the target axis bit is
Synchronous control
turned ON.
• Synchronous control ends if the bit is turned OFF during
synchronous control.
Fetch cycle: Operation cycle
• If the target axis bit is turned ON and synchronous
Synchronous control
control is started, the analysis is only executed and the
analysis mode
control does not start.
Fetch cycle: At start of the synchronous control
*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.
5.4 Synchronous Control Analysis Mode
The last monitor value
Start positioning on the cam axis feed current value at the beginning after
checking the target axis bit of "[Cd.380] Synchronous control start" is OFF.
Standby (0)
Analyzing (5)
Standby (0)
Check synchronization
position in synchronous
control analysis mode.
Monitor value at synchronous control start
Standby (0) Analyzing (5) Synchronous control (15)
Position control (8)
Move to the
position with
positioning control.
Setting value
■Set the target axis in 16 bits.
(bit0: axis 1 to bit15: axis 16
OFF: Synchronous control end
ON: Synchronous control start
■Set the target axis in 16 bits.
(bit0: axis 1 to bit15: axis 16
OFF: Synchronous control analysis mode OFF
ON: Synchronous control analysis mode ON
Start synchronous control


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