# Channel parameters

## Overview

This section describes the channel-specific parameters for configuring turning functions and rotary spindles.

The spindle configuration defined in the channel parameter list is the default assignment which is provided after the controller is started up.

P-CHAN-00761 | Tapping with actual positions of the spindle
Description | An additional function for tapping can be enabled to take into account the actual spindle speed. The linear axes are then coupled to the actual spindle position. This also permits tapping when the spindle speed drops due to the load.
Parameter | tapping.use_actual_position
Data type | BOOLEAN
Data range | 0: The spindle is coupled to the command positions of the linear axes. 1: The linear axes are coupled to the actual spindle positions.
Dimension | ---
Default value | 0
Remarks | Parameter available as of V3.1.3080.04

P-CHAN-00762 | Number of filter cycles to filter actual spindle positions
Description | The actual spindle positions may be noisy under certain circumstances. This parameter activates a filter to smooth the actual positions, The parameter specifies the number of filter smoothing cycles. The value 0 deactivates the filter.
Parameter | tapping.n_cycles
Data type | UNS16
Data range | 0 <= n_cycles <= 20
Dimension | ---
Default value | 0
Remarks | P-CHAN-00762 only acts when tapping with actual spindle positions is active (P-CHAN-00761). Parameter available as of V3.1.3080.04

## Additional information

- Spindle
- Kinematics