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7 AUXILIARY AND APPLIED FUNCTIONS
Command Speed after Execution of Speed Change
No.
Travel mode at speed
change
(Note-1)
Travel mode after speed change
(Note-1)
Command speed at execution of
travel instruction after speed change
1 PTP/OSC
(Note-2)
2
PTP
(Note-2)
Constant speed
(Note-3)
Program command speed
(Note-6)
3 PTP/OSC
(Note-2)
Program command speed
(Note-6)
4 Constant speed
(Note-3)
with F command Program command speed
(Note-7)
5
Constant speed
(Note-3)
without F command and
without special M-code
(Note-4)
New speed is continued
6
Constant speed
(Note-3)
Constant speed
(Note-3)
without F command and
with special M-code
(Note-5)
Program command speed
(Note-6)
(Note-1): A speed change is valid only at the execution of travel mode in the PTP or constant speed.
(Note-2): This mode is executed by G00, G28, G30 or G53. OSC mode is the travel mode executed by G25.
(Note-3): This mode is executed by G01, G2, G3, G12, G13 or G32. The independent M-code is also handled as the
constant speed mode.
(Note-4): When a special M-code (M00, M01, M02, M30, M98, M99, M100) is not executed during the constant speed
mode after speed change.
(Note-5): When a special M-code (M00, M01, M02, M30, M98, M99, M100) is executed during the constant speed mode
after speed change.
The decelerates stop is made at the execution of the special M-code.
(Note-6): PTP mode: High-speed feed rate. OSC mode: F (frequency) command. Constant speed mode: F (speed)
command.
CHGV
Speed
Program command speed
Example (CHGV is executed during N1)
N1 N2
Speed change value
Time
010 ;
N1 G00 X100. ;
N2 G00 X200. ;
M02 ;
%
Block switching
(Note-7): F (speed) command. Note that it is clamped at the speed change value.
CHGV
Speed
Program command speed
Example (CHGV is executed during N1)
N1 N2
Speed change value
Time
011 ;
N1 G01 X100. F1000. ;
N2 G01 X200. F1000. ;
M02 ;
%
Block switching