HEIDENHAIN CNC Pilot 4290 - Manual (Page 132)

4 DIN PLUS 120
4.6.8 Tools, Types of Compensation
Tool call T
The CNC PILOT displays the tool assignment defined in the TURRET
section. You can enter the T number directly or select it from the tool
list (switch with the CONTINUE soft key). See also ”
4.2.4 Tool
Programming.”
(Changing the) cutter compensation G148
”O” defines the values compensating for wear. On program start and
after a T command, DX, DZ are active.
Parameters
O:
Selection – default: 0
■ O=0: DX, DZ active – DS inactive
■ O=1: DS, DZ active – DX inactive
■ O=2: DX, DS active – DZ inactive
The recessing cycles G860, G866, G869 automatically
take the ”correct” wear compensation into account.
Additive compensation G149
The CNC PILOT manages 16 tool-independent compensation values.
A G149 followed by a ”D number” activates the compensation –
”G149 D900” switches the compensation off.
Parameters
D:
Additive compensation – default: D900; range: 900..916
Programming notes
■ The compensation becomes effective after the tool has moved in
the compensation direction by the compensation value.Therefore,
program G149 one block before the block containing the path of
traverse to which the compensation is to apply.
■ An additive compensation remains effective until:
■ The next ”G149 D900”
■ The next tool change
■ The end of the program
4.6 Machining Commands
Example
. . .
N.. G1 Z–25
N.. G149 D901 [Activate the compensation]
N.. G1 X50 [”Move” compensation:
Position X50 + compensation]
N.. G1 Z–50 [Compensation is applied
to contour element]
N.. G149 D900 [Deactivate compensation]
. . .