Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual download pdf (Page 127)

HEIDENHAIN TNC 320 127

3.3 Automatic Workpiece Measurement

8 Starting point in 1st axis Q328 (absolute): Starting

point for probing in the reference axis of the working

plane.

8 Starting point in 2nd axis Q329 (absolute): Starting

point for probing in the minor axis of the working

plane.

8 Offset for 2nd measurement Q310 (incremental):

Distance by which the touch probe is displaced

before the second measurement. If you enter 0, the

TNC does not displace the touch probe.

8 Measuring axis Q272: Axis in the working plane in

which the measurement is to be made:

1: Reference axis = measuring axis

2:Minor axis = measuring axis

8 Measuring height in the touch probe axis Q261

(absolute): Coordinate of the ball tip center (= touch

point) in the touch probe axis in which the

measurement is to be made.

8 Clearance height Q260 (absolute): Coordinate in the

touch probe axis at which no collision between tool

and workpiece (fixtures) can occur.

8 Nominal length Q311: Nominal value of the length to

be measured.

8 Maximum dimension Q288: Maximum permissible

length.

8 Minimum dimension Q289: Minimum permissible

length.

8 Measuring log Q281: Definition of whether the TNC is

to create a measuring log:

0: No measuring log

1: Generate measuring log: the TNC saves the log file

TCHPR425.TXT by default in the directory TNC:\

2: Interrupt the program run and display the

measuring log on the screen. Resume program run

with NC Start.

8 PGM stop if tolerance error Q309: Definition of

whether in the event of a violation of tolerance limits

the TNC is to interrupt the program run and output an

error message:

0: Do not interrupt program run, no error message

1: Interrupt program run, output an error message

8 Tool number for monitoring Q330: Definition of

whether the TNC is to monitor the tool (see “Tool

monitoring” on page 108):

0: Monitoring not active

>0: Tool number in the tool table TOOL.T

Example: NC blocks

5 TCH PROBE 425 MEASURE INSIDE WIDTH

Q328=+75 ;STARTNG PNT 1ST AXIS

Q329=-12.5 ;STARTNG PNT 2ND AXIS

Q310=+0 ;OFFS. 2ND MEASUREMNT

Q272=1 ;MEASURING AXIS

Q261=-5 ;MEASURING HEIGHT

Q260=+10 ;CLEARANCE HEIGHT

Q311=25 ;NOMINAL LENGTH

Q288=25.05 ;MAX. LIMIT

Q289=25 ;MIN. LIMIT

Q281=1 ;MEASURING LOG

Q309=0 ;PGM STOP IF ERROR

Q330=0 ;TOOL NUMBER

Q329

Q328

Q289

Q311

Q288

Q272=1

Q272=2

Q310

Q261

Q260

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Heidenhain TNC 320 (340 55x-03) Touch Probe Cycles User Manual Page 127

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