GSK GSK980TDc, Руководство пользователя

Страница: 34 / 470

GSK980TDc Turning CNC System User Manual
16
Ⅰ
Progra
mming
mode, the program starts to run by the cycle start signal ( is pressed or external cycle start
signal)from a block pointed by current cursor, usually blocks are executed one by one according to
their programming sequence, the program stops running till executing M02 or M30. The cursor moves
along with program running and is located at the heading of the current block. Sequence and state of
program running are changed in the followings:
z The program stops running after pressing or emergent stop button;
z The program stops running when the system or PLC alarms;
z The program runs and single block stops (the program run stops after the current block runs
completely) in Edit, MDI mode, and then a block pointed by the current cursor starts running
after the system switches into Auto mode, is pressed or external cycle start signal is
switched on;
z The program stops running in Manual(Jog), Handwheel (MPG), Single Block, Program
Reference Point Return, Machine Reference Point Return mode and it continuously runs
from current position after the system is switched into Auto mode and is pressed or
the external cycle start signal is switched on;
z The program pauses after pressing or the external cycle start signal is switched off,
and it continuously runs from current position after pressing or the external cycle
start signal is switched on;
z When Single Block is ON, the program pauses after every block is executed completely, and
then it continuously runs from the next block after is pressed or the external cycle
start signal is switched on;
z Block with “/” in the front of it is not executed when the block skipping switch is ON;
z
The system skips to the target block to run after executing G65;
z Please see I Programming, Section Three G Commands about execution sequence of
G70~73;
z Call corresponding subprograms or macro program to run when executing M98 or
M9000~M9999; the system returns to main program to call the next block when executing
M99(if M99 specifies a target block number, the system returns to it to run) after the
subprograms or macro programs run completely;
z The system return to the first block to run and the current program is executed repetitively
when M99 is executed in a main program.
1.5.2 Execution sequence of word
There are many words (G, X, Z, F, R, M, S, T and so on) and most of M, S, T is transmitted to
PLC by NC explaining and others are directly executed by NC. M98, M99, M9000 ～ M9999, S word
used to specify the spindle speed r/min, m/min is directly executed by NC.
NC firstly executes G and then M commands when G codes and M00, M01, M02 and M30 are in
the same block.
NC firstly executes G and then M commands( without transmitting M signal to PLC) when G