Mitsubishi Electric QD77MS User Manual page 160

[Md.400] Current 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 (Refer to Chapter 2). The unit is PLS if the main input axis is invalid.
The current 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)
OPR
Current value change
(Note-1)
Speed control
Fixed-feed control
Speed-position switching control
(Note-1)
Position-speed switching control
(Note-1)
Connection to servo amplifier
Connection to synchronous
encoder
(Note-1): When "2: Clear feed current value to zero" is set in "[Pr.21] Feed current value during speed control" only.
Change method 1): The new current value after composite main shaft gear is calculated
Current value
after composite
main shaft gear
Change method 2): The travel value of the main input axis from the last synchronous
Current value
after composite
main shaft gear
Absolute position
detection system: valid
Change method 2)
based on the current value of the main input axis.
Main input direction of
=
composite main shaft gear
control session is reflected to the current value after composite main
shaft gear.
Current value
Main input direction of
= after composite +
composite main shaft gear
main shaft gear
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Chapter 4 Synchronous Control
Servo input axis
Absolute position
detection system: invalid
Change method 1)
Change method 1)
Change method 1)
Change method 1)
Change method 1)
Change method 1)
Change method 1)
—
Main input axis
current value
Synchronous
encoder axis
—
Change method 1)
—
—
—
—
—
Change method 1)
Travel value of main
input axis from the
last synchronous
control session