Mitsubishi Electric Q172CPU Programming Manual page 504

8 AUXILIARY AND APPLIED FUNCTIONS
Travel mode at speed
No.
(Note-1)
change
1
(Note-2)
PTP
2
3
4
Constant speed
5
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.
Example (CHGV is executed during N1)
010 ;
N1 G00 X100. ;
N2 G00 X200. ;
M02 ;
%
(Note-7): F (speed) command. Note that it is clamped at the speed change value.
Example (CHGV is executed during N1)
011 ;
N1 G01 X100. F1000. ;
N2 G01 X200. F1000. ;
M02 ;
%
Command Speed after Execution of Speed Change
Travel mode after speed change
(Note-2)
PTP/OSC
(Note-3)
Constant speed
(Note-2)
PTP/OSC
(Note-3)
Constant speed
(Note-3)
Constant speed
(Note-3)
without special M-code
(Note-3)
Constant speed
with special M-code
Speed
Speed
(Note-1)
with F command
without F command and
(Note-4)
without F command and
(Note-5)
CHGV
N1 N2
Block switching
CHGV
N1 N2
Block switching
8 - 57
Command speed at execution of
travel instruction after speed change
Program command speed
Program command speed
Program command speed
New speed is continued
Program command speed
Program command speed
Speed change value
Time
Program command speed
Speed change value
Time
(Note-6)
(Note-6)
(Note-7)
(Note-6)