NCT Group NCT 990T - Manual (Page 78)

7.2.2 Tool Length Offset Measurement inside the Machine
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7.2.2 Tool Length Offset Measurement inside the Machine
Tool length can be measured
also inside the machine. For
this softkey
F4
T. LENG MEAS-
UR (tool length measurement)
of
F5 OFFSETS action menu
must be selected.
Select the tool length offset
register, in which the tool length
to be stored. In order to do this
softkey
F3
OFS NO SEARCH
(offset number search) must be
pressed. The offset register num-
ber, which is to be used in the
course of measurement, shall be
entered under address N in the
bottom data input line, than the
data input must be terminated by either key or .
The coordinate system, to which the tools are to be related to, needs to be selected after
pressing softkey
F1
WORK COORDNT. (Work coordinate system), than the appropriate
softkey
F1
G54,
F2
G55 , ... The selected coordinate system is not changed to (as after the
execution of the appropriate command G54, G55, ...), but is only taken into account in the
course of measurement.
After taking cuts on X and Z axes, measuring the diameter X and length Z of workpiece cut,
the values are to be specified in the lower data input line on address X and Z. The data input
must be terminated by either key or .
The control calculates the tool length offset automatically by taking the current axis position
into account.