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12 USING A FULLY CLOSED LOOP SYSTEM
12.4 Startup
12.4 Startup
Servo parameter setting
Selecting a fully closed loop system
With the settings of [Pr. PA01], [Pr. PE01], and the controller control command, a control method can be selected as described
in the following table.
*1 Can be supported when the load-side encoder is an absolute position encoder.
■Selecting an operation mode
Select an operation mode.
• [Pr. PA01.4 Fully closed loop operation mode selection]
■Selecting semi closed/fully closed loop control
Select semi closed/fully closed loop control.
• [Pr. PE01.0 Fully closed loop function selection]
0: Always enabled
1: Switching by fully closed loop selection command from the controller and by input device CLD (fully closed loop selection)
*2
*1 This is always off if the CLD (fully closed loop selection) is not assigned to an input device.
*2 If "1" is set in [Pr. PE01.0] while [Pr. PA03.0 Absolute position detection system selection] has been set to "1" (Enabled), [AL. 037.2
Parameter combination error] occurs.
This setting is enabled when "1" (fully closed loop control mode) is selected in [Pr. PA01.5 Fully closed loop operation mode
selection].
[Pr. PA01.4 Fully closed
loop operation mode
selection]
[Pr. PE01.0
Fully closed
loop function
selection]
Semi closed loop
control/fully closed
loop control
switching signal
Command unit Control method Absolute
position
detection
system
"0"
Semi closed loop system
Servo motor
encoder unit
Semi closed loop control
"1"
Fully closed loop system
"0" Load-side encoder
unit
Dual feedback control
(Fully closed loop control)
*1
"1" OFF Semi closed loop control ×
ON Dual feedback control
(Fully closed loop control)
×
Setting value Operation mode Control unit
0 Semi closed loop system Servo motor-side resolution unit
1 Fully closed loop system Load-side resolution unit
Fully closed loop selection Control method
Command from controller CLD (fully closed loop selection)
*1
OFF OFF Semi closed loop control
ON OFF Fully closed loop control
OFF ON
ON ON