Servo Input Axis; Overview Of Servo Input Axis - Mitsubishi Electric QD77MS User Manual

2.1 Servo input axis

2.1.1 Overview of servo input axis

The servo input axis is used to drive the input axis based on the position of the servomotor
that is being controlled by the Simple Motion module.
The status of a servo input axis can also be monitored even before the synchronous control
start since the setting of a servo input axis is valid after the system's power supply ON.
The following shows the relationship between the position of the servomotor and the servo
input axis.
Control method for servo input axis
All controls (including synchronous control) can be executed for a servo input axis.
Refer to the "User's Manual (Positioning Control)" of each Simple Motion module for the
controls other than the synchronous control.
Pr.300 Servo input
axis type
Pr.301

Servo input axis

smoothing time
constant
Pr.302 Servo input axis
phase compensation
advance time
Servo input axis
Pr.303
phase compensation
time constant
Servo input axis
Pr.304
rotation direction
restriction
POINT
If the virtual servo amplifier function is set in the servo input axis, synchronous control
can be executed by the input value as virtual.
Refer to the "User's Manual (Positioning Control)" of each Simple Motion module for
details on virtual servo amplifier function.
Servo motor position
Feed current value
Real current value
Servo command value
Feedback value
Input
smoothing
processing
Phase
compensation
processing
Rotation direction
restriction
Current value of
servo input axis
2 - 2
Chapter 2 Input Axis Module
Md.302 Servo input axis
phase compensation
amount
Md.303 Servo input axis
rotation direction
restriction amount
Md.300 Servo input axis
current value
Md.301 Servo input axis
speed