Mitsubishi Electric MELDAS C6 Programming Manual page 164

13. Program Support Functions
(d) G84 (Tapping cycle)
Program
G84 Xx
P : Dwell designation
Operation
pattern
• When r2 = 1, the synchronous tapping mode will be entered, and when r2 = 0, the
asynchronous tapping mode will be entered.
• When G84 is executed, the override will be canceled and the override will automatically
be set to 100%.
• Dry run is valid when the control parameter "G00 DRY RUN" is on and is valid for the
positioning command. If the feed hold button is pressed during G84 execution, and the
sequence is at (3) to (6), the movement will not stop immediately, and instead will stop
after (6). During the rapid traverse in sequence (1), (2) and (9), the movement will stop
immediately.
• The operation stops at after the (1), (2) and (9) commands during single block operation.
• During the G84 modal, the "Tapping" NC output signal will be output.
• During the G84 synchronous tapping modal, the M3, M4, M5 and S code will not be
output.
Yy Zz Rr Ff Pp
1 1 1 1 1
x ,y
1 1
(1)
(2)
(7)
(3) (6)
G98
(4) (5)
mode
i1 j1
(1) Valid –
(2) – Invalid
(3) – Invalid
(4) – –
(5) – –
(6) – Invalid
(7) – –
(8) – –
(9) – Valid
156
Ss ,Ss ,Rr ,Ii ,Jj
1 1 2 2 1 1
(1) G0 Xx
(2) G0 Zr
(3) G1 Zz
(4) G4 Pp
r
1
(5) M4 (Spindle reverse rotation)
(8) (7) (8)
(6) G1 Z − z
(7) G4 Pp
(8) M3 (Spindle forward rotation)
(6)
z
1
(9)
G99
mode
13.1 Canned cycles
;
Yy
1 1
1
Ff
1 1
1
Ff
1 1
1
G98 mode G0Z − r
1
G99 mode No movement