F1-Digit Feed - Mitsubishi Electric M700V Series Programming Manual

7. Feed Functions

7.3 F1-digit Feed

Function and purpose
By setting the F1-digit feed parameter, the feedrate which has been set to correspond to the 1-digit
number following the F address serves as the command value.
When F0 is assigned, the rapid traverse rate is established and the speed is the same as for G00.
(G modal does not change, but the
the rapid
When F1 to F5 is assigned, the feedrate set to correspond to the command serves as the command
value.
The command greater than F6 is considered to be the normal cutting feedrate.
The F1-digit command is valid in a G01, G02, G03, G02.1 or G03.1 modal.
The F1-digit command can also be used for fixed cycle.
Detailed description
The override function of the feedrate which is set in accordance to the F1-digit is performed by
using the 1st manual handle. (Feedrate cannot be changed with the 2nd or 3rd handle.)
The amount by which the feedrate can be increased or reduced is determined by the following
formula.
±ΔF =
Where "+" means increase, and "-" means reduction.
K : Operation constant (This is the number of FM divisions, and is the calculated constant of
FM : This is the clamp speed of F1 to F5
Set the corresponding speed of F1 to F5 with the base specification parameters "#1185 spd_F1" to
"#1189 spd_F5" respectively.
The increase/reduction range is from "0" to the set value of the parameter "#1506 F1_FM".
Operation alarm (104) will occur when the feedrate is 0.
(1) Operation method
(a) Make the F1-digit command valid. (Set the base specification parameter "#1079 F1digt" to
1.)
(b) Set FM and K.
(c) Set F1 to F5. (Base specification parameter "1185 spd_F1" to "#1189 spd_F5")
(2) Special notes
(a) Use of both the F1-digit command and normal cutting feedrate command is possible when
the F1-digit is valid.
(Example 1)
(b) F1 to F5 are invalid in the G00 mode and the rapid traverse rate is established instead.
(c) If F0 is used in the G02 or G03 mode, a program error (P121) will result.
traverse.)
FM
× (±number of manual handle pulse generator pulses)
K
the increment/decrement speed per scale of the manual handle pulse generator.)
This is set with the base specification parameter "#1507 F1_K".
This is set with the base specification parameter "#1506 F1_FM".
Setting range
K : 1 to 32767
FM : 0 to Fmax (mm/min)
F0
F1 to F5
F6 or more
acceleration/deceleration method is followed by the settings for
(Base specification parameter "#1507 F1_K")
(Base specification parameter "#1506 F1_FM")
Rapid traverse rate
F1-digit
Normal cutting feedrate command
108
7.3 F1-digit Feed