Synchronous Control Analysis Mode - Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual

5.4

Synchronous Control Analysis Mode

With synchronous control analysis mode, advanced synchronous control parameters are only analyzed 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.
"[Md.141] BUSY" 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 command position value restoration disable (error code: 1C29H [FX5-SSC-S], or error code: 1E79H [FX5-SSC-
G])
[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])
[Cd.184] Positioning start
[Md.141] BUSY (Target axis bit)
(OFF during analyzing)
[Md.26] Axis operation status
Synchronous control system control data
Setting item Setting details
[Cd.380]
Synchronous control
start
Fetch cycle: Operation cycle
[Cd.381]
Synchronous control
analysis mode
Fetch cycle: At start (Synchronous control)
*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 and from axis 1 to 8 is valid in the 8-axis module.
5 ADVANCED SYNCHRONOUS CONTROL INITIAL POSITION
162
5.4 Synchronous Control Analysis Mode
The last monitor value
Standby (0) Analyzing (5)
Check synchronization
position in synchronous
control analysis mode.
• Synchronous control begins if the target axis bit is
turned ON.
• Synchronous control ends if the bit is turned OFF during
synchronous control.
• If the target axis bit is turned ON and synchronous
control is started, the analysis is only executed and the
control does not start.
Monitor value at synchronous control start
Start positioning on the cam axis command position value at the beginning
after checking the target axis bit of "[Cd.380] Synchronous control start" is
OFF.
Standby (0) Standby (0) Analyzing (5) Synchronous control (15)
Position control (8)
Move to the
synchronization
position with
positioning control.
Setting value
■Set the target axis in 16 bits.
(bit0: axis 1 to bit7: axis 8
OFF: Synchronous control end
ON: Synchronous control start
■Set the target axis in 16 bits.
(bit0: axis 1 to bit7: axis 8
OFF: Synchronous control analysis mode OFF
ON: Synchronous control analysis mode ON
Start synchronous control
Default
value
*1
0
*2
)
0
*2
)
Buffer
memory
address
36320
36322