# Settings for throughfeed machining (conv_sync.*)

## Attention

These parameters are available in TwinCAT as of CNC Build V3.1.3108.2

Throughfeed machines are essentially used for the rapid consecutive machining of workpieces. They are firmly secured to a conveyor belt and pass through several successive machining stations. The conveyor belt runs at a constant speed, i.e. workpieces are machined without stopping while they pass through the stations. The conveyor belt therefore represents an axis with a constant feed rate.

Schematic diagram of a throughfeed machine

The machining stations (units) may possess an X axis in parallel to the direction of conveyor belt movement and at right angles to a feed axis Y. Below, the belt axis is referred to as the master axis. For stable synchronisation, it is generally necessary to smooth the actual values of the master axis. This is achieved by means of the filter parameters described below.

Block diagram of master axis filtering

## Additional information

- Definition of the master axis of conveyor belt synchronisation (P-AXIS-00708)
- Actual position value filter for the master axis (P-AXIS-00620)
- Type of the actual position value filter of the master axis (P-AXIS-00621)
- Order of the actual position value filter of the master axis (P-AXIS-00622)
- Order of the actual speed value filter of the master axis(P-AXIS-00623)
- Order of the subsequent actual velocity filter in the case of feedhold on the master axis (P-AXIS-00624)
- Order of the actual speed filter in the case of feedhold on the master axis (P-AXIS-00625)
- Delay time between master and slave axes (P-AXIS-00626)
- Monitoring the workspace of throughfeed machines (P-AXIS-00555)