Mitsubishi Electric MELSEC iQ-R Series User Manual page 140

[Md.400] Position value after composite main shaft gear
The current value after combining the main input and the sub input values going into the composite main shaft gear is stored
as an accumulative value.
Units are in position units of the main input axis (Page 28 INPUT AXIS MODULE). The unit is pulse if the main input axis
is invalid.
The position value after composite main shaft gear will be changed when the following operations are executed in the main
input axis during synchronous control.
Operations of main input axis
(Synchronous control)
Home position return
Current value change
*1
Speed control
Fixed-pitch feed control
Speed-position switching control
Position-speed switching control
Connection to servo amplifier
Connection to synchronous encoder
*1 When "2: Clear command position value to zero" is set in "[Pr.21] Command position value during speed control" only.
Change method 1): The new position value after composite main shaft gear is calculated based on the current value of the
main input axis.
Position value after composite main shaft gear = Main input direction of composite main shaft gear  Main input axis current
value
Change method 2): The movement amount of the main input axis from the last synchronous control session is reflected to the
position value after composite main shaft gear.
Position value after composite main shaft gear = Position value after composite main shaft gear  Movement amount of main
input axis from the last synchronous control session
4 ADVANCED SYNCHRONOUS CONTROL
138
4.7 Synchronous Control Monitor Data
Servo input axis
Absolute position detection
system: valid
Change method 1)
Change method 1)
Change method 1)
Change method 1)
*1
Change method 1)
*1
Change method 1)
Change method 2)

Absolute position detection
system: invalid

Synchronous encoder axis

Change method 1)





Change method 1)