Programming the Recalibration on the Fly Function

At a Glance

This function, available with an incremental encoder, updates the current position of the moving part each time the recalibration on the fly input detects a rising edge in a positive direction or a falling edge in a negative direction.

It has been specifically adapted for axes where the moving part is susceptible to slip, or in other words where the position value no longer reflects the true position.

This function is confirmed in the configuration screen.

Recalibration on the Fly Function

When the event takes place, the axis control module preselects the current value to the RE_POS value and compares the current position with the recalibration value RE_POS (%MDr.m.c.43), defined in the recalibration screen (or by the program).

If the comparison indicates that the current value is outside of the tolerances defined by RE_WDW (%MDr.m.c.51), a fault is signaled: REC_FLT bit (%MWr.m.c.3.12).

The moving part is not stopped:

Execution Condition

Recalibration on the fly function is enabled:

referenced axis,
in automatic, manual or loop control disabled mode,
in Drv_Off mode, with a TSX CAY 22 / 42 module or TSX CAY 33 module.

NOTE: The value of the RE_WDW parameter must be much lower than the DMAX1 following error fault threshold.