HEIDENHAIN TNC 406 - Manual (Page 261)

240 12 MOD Functions
12.6 Ent
e
r Axis T
ra
v
e
rse Limits
12.6 Enter Axis Traverse Limits
Introduction
The AXIS LIMIT mod function allows you to set limits to axis traverse
within the machine’s actual working envelope.
Example application:
To protect an indexing fixture against tool collision.
The maximum range of traverse of the machine tool is defined by
software limit switches. This range can be additionally limited with the
AXIS LIMIT mod function. With this function you can enter the
maximum and minimum traverse positions for each axis, referenced
to the machine datum.
Working without additional traverse limits
To allow a machine axis to use its full range of traverse, enter the
maximum traverse of the TNC (+/– 30 000 mm) as the AXIS LIMIT.
To find and enter the maximum traverse:
Select POSITION DISPLAY REF
Move the spindle to the positive and negative end positions of the
X, Y and Z axes.
Write down the values, including the algebraic sign.
MOD functions
Press the AXIS LIMIT soft key.
and enter the values that you wrote down as LIMITS in the
corresponding axes
Exit the MOD function.
Y
Z
X
Z
min
Z
max
X
min Y
max
Y
min
X
max