
2005/08/29
Edit
3/8
Data Si
nature
Descri
tion
FS16i/18i/21i-MB, 18i-MB5
Retraction for 3-dimentional rigid tapping
Specifications
A-90190EN
Drawing No.
Title
Page
2 Specification
The retraction of the 3-dimensional rigid tapping or the rigid tapping during tilted
working plane command is executed triggered by Rigid tapping retraction start
signal RTNT <G062#6> or G30 program command. The retraction method is
selected by parameter RG3 (No.5202#1) setting.
2.1 Retraction for rigid tapping by a tap retraction signal
When the parameter RG3 (No.5202#1) is “0”, this method is used.
Basic procedure
• Start
Reset the CNC, then select MDI mode. Setting Rigid tapping
retraction start signal RTNT to “1” starts rigid tapping retraction.
• Completion
Upon the completion of rigid tapping retraction, Rigid tapping
retraction completion signal RTPT becomes to “1”, with which the
CNC automatically enters the reset state. Setting Rigid tapping
retraction start signal RTNT to “0” sets Rigid tapping retraction
completion signal RTPT to “0”.
• Stop
During rigid tapping retraction, setting Rigid tapping retraction start
signal RTNT to “0” stops rigid tapping retraction, placing the CNC in
the reset state. To resume rigid tapping retraction, set Rigid tapping
retraction start signal RTNT to “1”. Rigid tapping retraction can also
be stopped by means of a reset or feed hold.
• Resume
Once rigid tapping retraction has been stopped, it can be resumed by
performing the same operation as that used for starting rigid tapping
retraction. If rigid tapping retraction has been completed, however,
the start operation does not restart rigid tapping retraction. If retract
value α is set in the parameter No.5382, however, the start operation
performs rigid tapping retraction using α only.