Chapter 1 Overview; Overview Of Synchronous Control - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

1
OVERVIEW
1.1

Overview of Synchronous Control

"Synchronous control" can be achieved using software instead of controlling mechanically with gear, shaft, speed change
gear or cam etc.
"Synchronous control" synchronizes movement with the input axis (servo input axis, command generation axis, synchronous
encoder axis), by setting "the parameters for synchronous control" and starting synchronous control on each output axis.
Positioning start
Servo program
Positioning control
Other axis input
Positioning start
Servo program
Positioning control
Servo
amplifier
Servo
motor
*1 It is possible to drive the servo input axis except the positioning control (home position return, manual control, speed-torque control,
synchronous control).
MELSEC iQ-R Motion controller Programming Manual (Positioning Control)
*2 Speed change gear can be arranged on two of "Main shaft side", "Auxiliary shaft side" or "After composite auxiliary shaft gear".
1 OVERVIEW
18
1.1 Overview of Synchronous Control
Synchronous encoder
Manual pulse generator/
Synchronous encoder input
Synchronous encoder
Command
axis parameter
generation
Synchronous encoder
axis
axis
Command generation
axis parameter
Command generation
axis
Servo input axis
*1
parameter
Servo input axis
Axis 4
Synchronous control start
Synchronous parameter
Main shaft Composite main
main input axis shaft gear
Main shaft
sub input axis
Auxiliary Auxiliary Speed
shaft shaft change
*2
gear clutch gear
Auxiliary
shaft axis
Synchronous control start
Synchronous
control start
Axis 1
Axis 2
Main shaft
gear
Main shaft
clutch
Speed
change
gear *2
Composite
auxiliary
shaft gear
Speed
change
gear *2
Cam
Output axis
Servo Servo Servo
amplifier amplifier amplifier
Servo Servo Servo
motor motor motor
Axis 3