ID 70082

Axis not within position window at end of transient time.

Description

The axis is not within the tolerance window at the end of the transient time.

 

The position lag monitoring function (see [FCT-A3// Section: Description]) monitors whether the actual position reaches an exact stop window (see P-AXIS-00236) within a certain period of time (see P-AXIS-00151) when approaching a target position. If the interpolator no longer supplies any reference values, the command position of the axis has reached its programmed target position and time monitoring is started. It is deactivated when the actual position of the axis is within the exact stop window.

 

Possible error causes:

  • A incorrectly adjusted position controller, e.g. too large permanent control deviation or too large overshoot.
  • Great friction in the mechanical system.
  • The axis is blocked and can not move freely

Response

Class

5

Abrupt axis stop for defective axis

Solution

Class

6

Possible solutions:

  • Increase the proportional gain factor of the position controller, if the control offset is too large.
  • Reduce the gain factor of the position controller, if the overshoot of the axis is too large (see P-AXIS-00099).
  • Reduce friction in the mechanical system
  • If necessary, increase the exact stop window (see P-AXIS-00236) or the transient time (see P-AXIS-00151)

Parameter

%1:

Logical axis number [-]

Logical axis number of affected axis see P-AXIS-00016

%2:

Drive type [-]

Drive type of concerned axis, see P-AXIS-00020

%3:

Upper limit value [µs]

Maximum permitted transient time see P-AXIS-00151

%4:

Block number [-]

Block number of the NC program, in which the error occurred

%5:

Current value [-]

Amount of the actual position lag in increments

Error type

11, Error message from position controller.