Mitsubishi Electric MELSERVO-J4 series Instruction Manual page 459

16. FULLY CLOSED LOOP SYSTEM
(2) Selection of fully closed loop system
By setting [Pr. PA01], [Pr. PE01] and the control command of controller, the control method can be
selected as shown in the following table.
[Pr. PA01] [Pr. PE01]
"_ _ 0 _"
Semi closed
loop system
(standard
control mode)
"_ _ 1 _ " "_ _ _ 0"
Fully closed
loop system
(fully closed
"_ _ _ 1"
loop control
mode)
Note. Applicable when the load-side encoder is set as the absolute position encoder.
(a) Operation mode selection
Select a operation mode.
(b) Semi closed loop control/fully closed loop control selection
Select the semi closed loop control/fully closed loop control.
Semi closed loop control/
fully closed loop control
switching signal
Servo motor
encoder unit
Load-side encoder
unit
Off
On
[Pr. PA01]
1 0 0
Operation mode selection
Set value
[Pr. PE01]
0 0 0
Fully closed loop control selection
0: Always enabled
1: Switching using the control command of controller
Selection using the control
When the operation mode selection in [Pr. PA01] is set to "_ _ 1 _"
(fully closed loop system), this setting is enabled.
16 - 10
Command unit Control System
Semi closed loop control
Dual feedback
control (fully closed loop
control)
Semi closed loop control
Dual feedback
control (fully closed loop
control)
Operation mode
Semi closed loop system
0
(Standard control mode)
Fully closed loop system
1
(Fully closed loop control mode)
(switching between semi closed/fully closed)
command of controller
OFF Semi closed loop control
ON Fully closed loop control
Absolute position
detection
system
(Note)
×
×
Control unit
Servo motor-side
resolution unit
Load-side encoder
resolution unit
Control method