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Chapter 14 Common Functions
14.9 Driver communication function
This function uses the "Master-slave operation function" of servo amplifier. The Simple
Motion module controls master axis and the slave axis is controlled by data
communication between servo amplifiers (driver communication) without Simple
Motion module.
There are restrictions in the function that can be used by the version of servo amplifier.
Refer to each servo amplifier instruction manual for details.
The following shows the number of settable axes for the master axis and slave axis.
Network Servo amplifier Module
Combination of number of
settable axes
(Note-1)
Remark
Master axis Slave axis
SSCNET
MR-J3-_B
MR-J3-_BS
MR-J3-_B-RJ006
(Note-2)
QD77MS2 1 axis
1 axis or more/
1 master axis
The axes other
than the master
axis and slave
axis can be used
as normal axis.
QD77MS4 1 axis to 2 axes
QD77MS16 1 axis to 4 axes
SSCNET /H
MR-J4-_B
(Note-3)
QD77MS2 1 axis
1 axis or more/
1 master axis
QD77MS4 1 axis to 2 axes
QD77MS16 1 axis to 8 axes
—: No restriction
(Note-1): When the slave axis is not allocated for the master axis, the operation is normal operation only of
master axis.
(Note-2): The fully closed loop control servo amplifier can be set for the master axis only. It cannot be set for
the slave axis.
(Note-3): In the fully closed loop system, the servo amplifier can be set for the master axis only. It cannot be set
for the slave axis. Also, it cannot be used with the linear servo motors or direct drive motors. Refer to
each servo amplifier instruction manual for details.
The details shown below explain about the "Driver communication function".
[1] Control details
[2] Precautions during control
[3] Servo parameter