2 – 12 HEIDENHAIN Service Manual TNC 426/430 C/P/M
Start position
incorrect
445 n Digitizing with contour lines:
Incorrect starting position selected
n Check the axes defined in the
Contour Lines cycle.
Radius comp. entry
is missing
1142 n M120 with LA greater than 0
permitted only during active tool
radius compensation.
n Edit the part program.
ANGLE in TOOL.T
too small
2243 n Cycle 22 (DIN/ISO:G122) ROUGH-
OUT: The plunge angle of the active
tool is too small.
n Change the plunge angle in the tool
table TOOL.T (column ANGLE).
n Enter a smaller plunging angle in
the rough-out cycle.
n Use a tool which permits a greater
plunging angle.
Probing already
active
2870 n Internal software error n Inform your service agency.
n Check the software version
Touch point
inaccessible
50 n In the TCH-PROBE 0 (ISO: G55)
cycle or during use of the manual
probe cycles, no touch point was
reached within the traverse defined
in machine parameter MP6130.
n Pre-position the touch probe to the
workpiece.
n Increase the value in MP6130.
User cycle not
permitted
271 n An OEM cycle has been called in a
program being run blockwise from
an external data medium.
n Delete the user cycle.
User cycle does not
exist
264 n You attempted to call a user cycle
that is not stored in TNC memory.
n Delete the cycle definition.
n Read-in the user cycle.
APPR LCT before
HELIX not permtd
286 n You programmed the APPR LCT
block or the APPR PLCT block for
approaching a contour immediately
before a helix.
n Edit the part program.
APPR not permitted 296 n You programmed an APPR block in
the definition of a contour or a
contour pocket.
n Edit the part program.
APPR not first block 297 n You programmed an APPR block in
a position other than first in the
definition of a contour or a contour
train.
n Edit the part program.
Too little main
memory
2888 n Internal software error n Inform your service agency.
n Check software version
Arithmetical error 213 n Internal calculations have resulted
in a non-representable numerical
value.
n Check the input values.
Arithmetical error 214 n Internal calculations have resulted
in a non-representable numerical
value.
n Check the input values.
Arithmetical error 215 n Internal calculations have resulted
in a non-representable numerical
value.
n Check the input values.
Arithmetical error 226 Error in internal calculations,
e.g. due to:
n Division by 0
n Extracting the root of a negative
value, etc.
n Check the input values.
Arithmetical error in
APPR/DEP
227 n Calculation of an APPR or DEP
block in a part-program resulted in
an arithmetic error.
n Check the input values.
If necessary change the starting
point.
Arithmetical error in
APPR/DEP
228 n Calculation of an APPR or DEP
block in a part-program resulted in
an arithmetic error.
n Check the input values.
If necessary change the starting
point.
Arithmetical error in
APPR/DEP
229 n Calculation of an APPR or DEP
block in a part-program resulted in
an arithmetic error.
n Check the input values.
If necessary change the starting
point.
Error message Error
number
Cause of error Corrective action
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