HEIDENHAIN SW 68894x-02 - Manual (Page 82)

82 Machine mode of operation
3.3
Mac
h
ine
data
Axis feed rate
F is the identification letter for feed data. Depending on which mode
of the Feed rate soft key is active, data is entered in:
 Millimeters per spindle revolution (feed per revolution)
 Millimeters per minute (feed per minute).
On the screen, you can tell the type of feed rate from the unit of
measure in the input field.
You can change the feed value with the feed compensation
controller (feed override) (range: 0 % to 150 %).
Spindle
S is the identification letter for spindle data. Depending on which
mode of the Constant speed soft key is active, data is entered in:
 Revolutions per minute (constant speed)
 Meters per minute (constant surface speed).
The input range is limited by the maximum spindle speed. You define
the speed limitation in the Set T, S, F, dialog box or in DIN
programming with the G26 command. The speed limit remains in
effect until a new speed limit value is programmed.
The speed compensation controller (speed override) allows you to
change the spindle speed (range: 50 % to 150 %).
Spindle symbols (S display)
Direction of spindle rotation M3
Direction of spindle rotation M4
Spindle stopped
Spindle position-controlled (M19)
C axis on spindle motor is active
Spindle designations
Spindle H 0 1
Driven tool 1 1 2
 If you are machining with a constant cutting speed, the
CNC PILOT calculates the spindle speed from the
position of the tool tip. The smaller the diameter of the
tip, the higher the spindle speed. The maximum spindle
speed,
however, is never exceeded.
 The spindle symbols indicate the direction of spindle
rotation as seen from the point of view of the machinist.
 The spindle designation is fixed by the machine tool
builder (see table at right).