Lifting an axis with time-based calculation (P-CHAN-00345)

P-CHAN-00345

Switch-over to time-based calculation when an axis is lifted.

Description

When an axis is lifted (see [FCT-A11]), it can be lifted or lowered automatically independent of the path motion. The CNC limits the maximum lift height so that the axis can reach the target point of the lowering movement and not to influence the path motion. Normally this takes place during path preparation with a path-based coupling of the axis to the main motion path. Instead the 'enable_time_base_lift' parameter can enable a time-based consideration in the real-time GEO task of the controller. As a result, greater lifting height can be reached afterwards. However, time-based coupling requires considerably more computing power in the real-time task of the controller. The HSC slope profile and the time-based approach cannot be used at the same time.

Parameter

enable_time_based_lift

Data type

BOOLEAN

Data range

0: Path-based approach (default).

1: Time-based approach.

Dimension

----

Default value

0

Remarks

The time-based approach must also be included in the configuration data of path preparation and interpolation when the controller is started. Here, set the key word FCT_LIFT_UP_TIME in the parameters P-STUP-00060 and P-STUP-00070 .

Example of the 1st CNC channel:

configuration.channel[0].path_preparation.function.
FCT_DEFAULT | FCT_LIFT_UP_TIME

configuration.channel[0].interpolator.function.
FCT_DEFAULT | FCT_LIFT_UP_TIME