HEIDENHAIN TNC 620 (340 56x-02) - Manual (Page 412)

412 Test Run and Program Run
14.1 Gr
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Measuring the machining time
Program Run modes of operation
The timer counts and displays the time from program start to program
end. The timer stops whenever machining is interrupted.
Test Run
The timer displays the time that the TNC calculates for the duration of
tool movements that are executed at feed rate. Dwell times are
included in the calculation by the TNC. The time calculated by the TNC
can only conditionally be used for calculating the production time
because the TNC does not account for the duration of machine-
dependent interruptions, such as tool change.
Activating the stopwatch function
U Shift the soft-key row until the soft-key for the
stopwatch functions appears.
U Select the stopwatch functions.
U Select the desired function via soft key, e.g. saving the
displayed time.
Stopwatch functions Soft key
Enable (ON) or disable (OFF) the “measure the
machining time” function.
Store displayed time
Display the sum of stored time
and displayed time
Clear displayed time
During the Test Run, the TNC resets the machining time
as soon as a new BLK FORM is evaluated.