522
16 FULLY CLOSED LOOP SYSTEM
16.3 Operation and functions
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.
*1 Applicable when the load-side encoder is set as the absolute position encoder.
■
Operation mode selection
Select an operation mode.
■
Semi closed loop control/fully closed loop control selection
Select the semi closed loop control/fully closed loop control.
To enable the setting, select "Fully closed loop control mode (_ _ 1 _)" of "operation mode selection" in [Pr. PA01].
When "Absolute position detection system" is "Enabled (_ _ _ 1)" in [Pr. PA03], setting "1" will trigger [AL. 37 Parameter error].
[Pr. PA01]
[Pr. PE01] Semi closed loop control/
fully closed loop control
switching signal
Command unit
Control system
Absolute
position
detection
system
"_ _ 0 _"
Semi closed loop system
(standard control mode)
Servo motor encoder unit
Semi closed loop control
"_ _ 1 _"
Fully closed loop system
(fully closed loop control
mode)
"_ _ _ 0"
Load-side encoder unit
Dual feedback control (fully
closed loop control)
"_ _ _ 1"
Off
Semi closed loop control
On
Dual feedback control (fully
closed loop control)
Operation mode selection
[Pr. PA01]
1 0
0
Semi closed loop system
(Standard control mode)
Fully closed loop system
(Fully closed loop control mode)
Load-side encoder
resolution unit
Set value
0
1
Operation mode
Servo motor-side
resolution unit
Control unit
Fully closed loop control selection
0: Always enabled
1: Switching by fully closed loop selection command from controller
and Input device CLD (Fully closed loop control selection)
0
0
Fully closed loop selection
Off
Off
Off
On
On
On
Off
On
Command from
controller
CLD (Fully closed
loop selection)
*1
Semi closed loop control
Fully closed loop control
Control method
*1 It is always off when CLD (Fully closed loop selection) is not assigned
in [Pr. PD03] to [Pr. PD05].
0
[Pr. PE01]
Summary of Contents for MELSERVO-J4 series
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