Mitsubishi Electric MR-J5 Series User Manual page 290

■Position deviation error detection
Set [Pr. PL04.0 [AL. 042 Servo control error] detection function selection] to "1" to enable the position deviation error
detection.
Servo parameter
PL04.0
When the difference between the model feedback position ( 1)) and the feedback position ( 2)) in the figure is equal to or more
than the value of [Pr. PL05 Position deviation error detection level] (1 (0.01 rev) to 1000 (10 rev)), [AL. 042.1 Servo control
error by position deviation] occurs and the direct drive motor stops. The initial value of this detection level is 0.09 rev. Change
the setting value as necessary.
■Speed deviation error detection
Set [Pr. PL04.0] to "2" to enable the speed deviation error detection.
Servo parameter
PL04.0
When the difference between the model feedback speed ( 3)) and the feedback speed ( 4)) in the figure is equal to or more
than the value of [Pr. PL06 Speed deviation error detection level] (1 r/min to 2000 r/min), [AL. 042.2 Servo control error by
speed deviation] occurs and the servo motor stops. The initial value of this detection level is 100 r/min. Change the setting
value as necessary.
■Torque deviation error detection
Set [Pr. PL04.0] to "4" to enable torque deviation error detection.
Servo parameter
PL04.0
When the difference between the command torque ( 5)) and the feedback torque ( 6)) in the figure is equal to or more than the
value of [Pr. PL07 Torque/thrust deviation error detection level] (1 % to 1000 %), [AL. 042.3 Servo control error by torque/
thrust deviation] occurs and the servo motor stops. The initial value of this detection level is 100 %. Change the setting value
as necessary.
■Detecting multiple deviation errors
When [Pr. PL04.0] is set as follows, multiple deviation errors can be detected. For the error detection method, refer to the
following.
Page 288 Position deviation error detection
Page 288 Speed deviation error detection
Page 288 Torque deviation error detection
• [Pr. PL04.0 [AL. 042 Servo control error] detection function selection]
Setting value Position deviation error detection

1

2
3 

4
5 

6

7
Initial value: 3
10 USING A DIRECT DRIVE MOTOR
288
10.4 Basic function
Description
[AL. 042 Servo control error] detection function selection
1: Position deviation error detection enabled
Description
[AL. 042 Servo control error] detection function selection
2: Speed deviation error detection enabled
Description
[AL. 042 Servo control error] detection function selection
4: Torque deviation error detection enabled
Speed deviation error detection







Torque deviation error detection






