Mitsubishi Electric MELSERVO-J4 series, Instruction Manual

Page: 489 / 646

14 USING A LINEAR SERVO MOTOR
14.3 Operation and functions
487
14
■
Speed deviation error detection
Set [Pr. PL04] to "_ _ _ 2" to enable the speed deviation error detection.
When you compare the model feedback speed ( 3)) and the feedback speed ( 4)) in "Outline of linear servo control error
detection function", if the deviation is more than the value of [Pr. PL06 Speed deviation error detection level] (1 mm/s to 5000
mm/s), [AL. 42.2 Servo control error by speed deviation] will occur and the linear servo motor will stop. The initial value of this
detection level is 1000 mm/s. Change the setting value as necessary.
For "Outline of linear servo control error detection function", refer to the following.

Page 486 Outline of linear servo control error detection function
■ Thrust deviation error detection
Set [Pr. PL04] to "_ _ _ 4" to enable the thrust deviation error detection.
When you compare the command thrust ( 5)) and the feedback thrust ( 6)) in "Outline of linear servo control error detection
function", if the deviation is more than the value of [Pr. PL07 Torque/thrust deviation error detection level] (1% to 1000%), [AL.
42.3 Servo control error by torque/thrust deviation] will occur and the linear servo motor will stop. The initial value of this
detection level is 100%. Change the setting value as necessary.
For "Outline of linear servo control error detection function", refer to the following.

Page 486 Outline of linear servo control error detection function
■
Detecting multiple deviation errors
When setting [Pr. PL04] as follows, multiple deviation errors can be detected. For the error detection methods, refer to the
following.
 Page 486 Position deviation error detection
 Page 487 Speed deviation error detection
 Page 487 Thrust deviation error detection
[Pr. PL04]
Speed deviation error detection enabled
2
[Pr. PL04]
Thrust deviation error detection enabled
4
[Pr. PL04]
Position deviation
error detection
Setting
value
Speed deviation
error detection
Thrust deviation
error detection
1
5
6
7
3
2
4
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