Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual download pdf (Page 20)

1.2 Before You Start Working with Touch Probe Cycles

Touch trigger probe, probing feed rate: F in

touch probe table

In F you define the feed rate at which the TNC is to probe the

workpiece.

Touch trigger probe, rapid traverse for

positioning: FMAX

In FMAX you define the feed rate at which the TNC pre-positions the

touch probe, or positions it between measuring points.

Touch trigger probe, rapid traverse for

positioning: F_PREPOS in touch probe table

In F_PREPOS you define whether the TNC is to position the touch

probe at the feed rate defined in FMAX or at rapid traverse.

 Input value = FMAX_PROBE: Position at feed rate from FMAX

 Input value = FMAX_MACHINE: Pre-position at rapid traverse

Multiple measurements

To increase measuring certainty, the TNC can run each probing

process up to three times in sequence. Define the number of

measurements in machine parameter Probe Settings >

Configuration of probe behavior > Automatic mode: Multiple

measurements with probe function. If the measured position values

differ too greatly, the TNC outputs an error message (the limit value is

defined in confidence range for multiple measurement). With

multiple measurement it is possible to detect random errors, e.g.,

from contamination.

If the measured values lie within the confidence interval, the TNC

saves the mean value of the measured positions.

Confidence range for multiple measurement

When you perform a multiple measurement, you store the value that

the measured values may vary in Probe Settings > Configuration of

probe behavior > Automatic mode: Confidence range for multiple

measurement. If the difference in the measured values exceeds the

value defined by you, the TNC outputs an error message.

MP6120

MP6360

MP6150

MP6361

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Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual Page 20