EN: man_8055tco_user.pdf - Fagor Automation

2.6.2 Constant surface speed
Available only at the TCO model.
In constant surface speed mode, the user sets the (linear) tangential speed that must
always be kept between the tool tip and the part.
Therefore, the spindle rpm depend on the position of the tool tip with respect to the
rotation axis. Thus, if the tool tip gets away from the rotation axis, the spindle slows
down and if it gets closer, it speeds up.
When selecting the CSS mode, the CNC shows the following information:
1
15:28:42 SBK P000002 IN POSITION
X
Z
S
00044.000
HOME X 0000.000
-00443.331
HOME Z 0000.000
115
F 0100.000 % 080
1. Real spindle speed in rpm.
2. Theoretical constant surface speed. It is set in mm/minute or feet/minute.
To select another speed, press [S] value [START].
The CNC assumes this value and if the spindle is turning, it updates the real
spindle speed (in rpm)
3. Spindle status:
turning clockwise, turning counterclockwise or stopped.
To modify the spindle status, press the following keys:
SPINDLE
+
SPEED
%
-
STOP
T 02
CSS 0100
4. % of the theoretical constant surface speed being applied.
To modify the percentage (%), press:
+
SPEED
STOP
%
-
SPINDLE
STOP
%+
%-
5. Maximum spindle speed in rpm.
To select another speed, press the [S] key twice. The CNC highlights the current
value.
Enter the new value and press [ENTER]. The CNC assumes that value.
D 12
CHANGE POSITION
X 25.000 Z 85.000
% 115
SMAX 1000
RANGE 1
2
3 4
5
6
Operating manual
OPERATING IN JOG MODE
Spindle control 2.
·MCO/TCO·
Option
Soft: V01.0x
·29·