16. FULLY CLOSED LOOP SYSTEM
16 - 21
16.3.4 Fully closed loop control error detection functions
If fully closed loop control becomes unstable for some reason, the speed at servo motor side may increase
abnormally. The fully closed loop control error detection function is a protective function designed to pre-
detect it and stop operation.
The fully closed loop control error detection function has two different detection methods, speed deviation
and position deviation, and errors are detected only when the corresponding functions are enabled by setting
[Pr. PE03 Fully closed loop function selection 2].
The detection level setting can be changed using [Pr. PE06] and [Pr. PE07].
(1) Parameter
The fully closed loop control error detection function is selected.
Fully closed loop control error detection function
0: Disabled
1: Speed deviation error detection
2: Position deviation error detection
3: Speed deviation error, position deviation error detection
(Initial value)
[Pr. PE03]
(2) Fully closed loop control error detection functions
Servo motor
Linear encoder
1) Servo motor-side feedback speed [r/min]
2) Servo motor-side feedback position [pulse]
(load side equivalent value)
3) Load-side feedback speed [r/min]
4) Load-side feedback position [pulse]
(a) Speed deviation error detection
Set [Pr. PE03] to "_ _ _ 1" to enable the speed deviation error detection.
Speed deviation error detection
1
[Pr. PE03]
The function compares the servo motor-side feedback speed (1)) and load-side feedback speed (3)).
If the deviation is not less than the set value (1 r/min to the permissible speed) of [Pr. PE06 Fully
closed loop control speed deviation error detection level], the function generates [AL. 42.2 Servo
control error by speed deviation] and stops. The initial value of [Pr. PE06] is 400 r/min. Change the
set value as required.
Summary of Contents for MR-J4-100B(-RJ)
Page 17: ...8 MEMO ...
Page 143: ...4 STARTUP 4 20 MEMO ...
Page 199: ...5 PARAMETERS 5 56 MEMO ...
Page 227: ...6 NORMAL GAIN ADJUSTMENT 6 28 MEMO ...
Page 281: ...8 TROUBLESHOOTING 8 16 MEMO ...
Page 303: ...9 DIMENSIONS 9 22 MEMO ...
Page 319: ...10 CHARACTERISTICS 10 16 MEMO ...
Page 429: ...11 OPTIONS AND PERIPHERAL EQUIPMENT 11 110 MEMO ...
Page 435: ...12 ABSOLUTE POSITION DETECTION SYSTEM 12 6 MEMO ...
Page 483: ...14 USING A LINEAR SERVO MOTOR 14 34 MEMO ...
Page 531: ...16 FULLY CLOSED LOOP SYSTEM 16 26 MEMO ...
Page 613: ...17 APPLICATION OF FUNCTIONS 17 82 MEMO ...
Page 654: ...APPENDIX App 41 ...