Mitsubishi Electric MELDAS C6 Programming Manual page 87

10. Spindle Functions
Relation with other functions
(1) The following functions change after the spindle selection command.
(a) Per rotation command (synchronous feed)
Even if F is commanded in the G95 mode, the per rotation feedrate for the selected spindle
(nth spindle) will be applied during G43.1 mode and for the 2nd spindle during G44.1
mode.
(b) S commands (S ∗∗∗∗∗ , Sn= ∗∗∗∗∗ ), constant surface speed control, thread cutting
S command during G97/G96
constant surface speed control
Upper limit / Lower limit of spindle
rotation speed command during
constant surface speed control (G92
S_ Q)
Thread cutting
(Note 1) The spindle selected during G43.1 mode depends on the parameter "#21049
(2) The Sn= ∗∗∗∗∗ command can be used to command the other spindle even if it is commanded
during G43.1 or G44.1 mode.
Note that the rotation speed designation will be applied for such command even if the G96
mode is ON.
(Example) When "SPname" = 0;
G43.1;
G97 S1000;
S2 = 2000;
G96 S100;
S2 = 2500;
G44.1 S200;
S1 = 3000;
G97 S4000;
(Note 2) The constant surface speed control will be switched to the 2nd spindle by G44.1
Function
SPname".
1st spindle
1000(r/min)
:
:
100(m/min)
:
:
(Note 2)
:
3000(r/min)
:
:
command. Therefore, the 1st spindle retains its rotation speed as that of "G44.1
S200;" command.
The 1st spindle rotation speed will be 3000 (r/min) when "S1=3000;" command is
issued.
10.4 Multiple spindle control I
G43.1 mode
Command control for
the selected spindle
(nth spindle).
(Note 1)
Rotation speed
2nd spindle
0(r/min)
2000(r/min)
2500(r/min)
200(m/min)
4000(r/min)
79
G44.1 mode
Command control for
the 2nd spindle.