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Mitsubishi Electric RD77MS2 User Manual Page 18

Melsec iq-r simple motion module.
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List of synchronous control module
The module is used in synchronous control as follows.
Input axis module
Synchronous encoder
axis parameter
Synchronous encoder axis
Servo input axis
parameter
Servo input axis
• Input axis module can be set to one of servo input axis or synchronous encoder axis.
• Speed change gear can be arranged on one of main shaft side, auxiliary shaft side or after composite
auxiliary shaft gear.
• Set the movement amount of input axis module as large as possible to prevent the speed fluctuation of
output axis module in the synchronous control. If the movement amount of input axis module is small, the
speed fluctuation of output axis module may occur depending on the setting for synchronous parameter.
• The following items can be monitored using the Simple Motion Module Setting Function; each synchronous
control monitor data and rotation direction of main shaft main input axis, main shaft sub input axis, auxiliary
shaft axis, and output axis (cam axis feed current value)
■Input axis
Classification
Name
Input axis
Servo input
module
axis
Synchronous
encoder axis
1 OUTLINE OF SYNCHRONOUS CONTROL
1.1 Outline of Synchronous Control
Synchronous parameter
Main shaft module
Main shaft
Composite main
(main input axis)
shaft gear
Main shaft
(sub input axis)
Auxiliary
Auxiliary
shaft
shaft
gear
clutch
Auxiliary shaft axis
Auxiliary shaft module
Parts
Function description
• Used to drive the input axis with
the position of the servomotor
controlled by the Simple Motion
module.
• Used to drive the input axis with
input pulse from the
synchronous encoder.
Main shaft
gear
Main shaft
clutch
Composite
auxiliary
shaft gear
Speed change
Speed
gear module
change
gear
Output axis
Cam
module
Output axis
Maximum number of usable
Number per module
2-axis
4-axis
module
module
2
4
4
Cam data
Number
per axis
8-axis
16-axis
module
module
8
16
Reference
Page 24
Servo Input
Axis
Page 31
Synchronous
Encoder Axis

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