GSK 988T, Руководство пользователя

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GSK988T Turning CNC System User Manual
48
Ⅰ
Programming
#5065, its last bit digit corresponds to the No. n axis of the system), at the same time,
the movement in G31 block ends. No. 6200 Bit 19SK0) sets the invalid input state of
the skip signal, and when it is set to 0, the input signal 1 is valid.
Operation: When the skip signal becomes “1”, CNC executes as follows: When the block is
executing G31, CNC stores the current absolute coordinates for each axis. CNC
stops G31 to execute the next block, the skip signal detects its state instead of its
RISING EDGE. So when the skip signal is “1”, it meets the skip conditions.
Note1: When the skip signal is input, the feedrate override, the dry run, and automatic acceleration/
deceleration are invalid in the course of movement by the skip function, which is to improve the
tool positioning precision.
Note 2: The skip signal is valid, the system immediately stops the feed axis (without acceleration/
deceleration execution), and G31 feedrate should be as low as possible to get the precise stop
position.
2.11 Automatic Tool Offset G36, G37
Command function: When the command is executed to make the tool move to the measured
position, the CNC automatically measures the difference between the
current actual coordinates and the command coordinates to be the tool
offset value. The function is used to the automatic toolsetting.
Command format: G36 X__;
G37 Z__;
Explanations: X absolute coordinate(only used to G36), Z absolute coordinate (only used to
G37);
Non-modal G command (00 group);
Cancel the tool nose radius compensation before using it;
Only use the absolute programming;
Define the workpiece coordinate system before using the command;
Specify the tool number and tool compensation number before using the command;
Measure position arrival signal:
XAE(X3.6)
―――― corresponding to G36
ZAE(X3.7) ―――― corresponding to G37
Function: When the position measured by the program command is different from that where the
tool actually reaches (i.e. at the time, the measured position arrival signal becomes “1”),
the difference of the coordinates is added to the current tool compensation value to
update the compensation value. When G36X_(or G37Z_) is executed, the tool firstly
rapidly traverses to the position measured by the command, and decelerates and
temporarily stop the position before the measured position, and then, reaches to the
measured position at the speed set by No.6241 (or No.6242). When the measured
position arrival signal corresponding to G command becomes the state set by No.
6240#0, and the tool is in the measured position range ±
ε , the system updates the offset
compensation value and ends the block. When the measured position arrival signal
does not become “1”, and after the tool reaches the measured position distance
ε , the