Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 5.FEED FUNCTIONS
- 155 -
(NOTE) *2:If bit 1 (F41) of parameter No. 2400 is set to 1, the units in
parentheses are used. (For increment system IS-A, this
setting is invalid.)
(2) With a decimal point
The position of the decimal point represents the position of "mm,"
"deg," or "inch."
- Feed per revolution (G95)
After specifying G95 (in the feed per revolution mode), the amount of
feed of the tool per spindle revolution is to be directly specified by
setting a number after F. G95 is a modal code. Once a G95 is specified,
it is valid until G94 (feed per minute) is specified. An override can be
applied to feed per revolution with the switch on the machine operator’s
panel. (See II-5.3.1)
For detailed information, see the appropriate manual of the machine
tool builder.
Fig.5.3 (c) Feed per revolution
Unit of F value
(1) With no decimal point(*1)
Linear axis 0.01 mm/rev
Metric input
Rotation axis
0.01 deg/rev
Linear axis 0.0001 inch/rev
Inch input
Rotation axis
0.0001 deg/rev
(NOTE) *1:If bit 0 (DPI) of parameter No. 2400 is set to 1,
calculator-type decimal point input is enabled.
(2) With a decimal point
The position of the decimal point represents the position of "mm,"
"deg," or "inch."
- Inverse time feed (G93)
When G93 is specified, the inverse time specification mode (G93
mode) is set. Specify the inverse time (FRN) with an F code.
A value from 0.001 to 9999.999 can be specified as FRN, regardless of
whether the input mode is inches or metric, or the increment system is
IS-A, IS-B, IS-C IS-D, or IS-E.
CAUTION
When the speed of the spindle is low, feedrate
fluctuation may occur. The slower the spindle
rotates, the more frequently feedrate fluctuation
occurs.
F
Feed amount per spindle
revolution
(mm/rev ˝inch/rev)

Leave a Reply

Your email address will not be published. Required fields are marked *