TOMATECH AUTOMATION
Machine reference point is located at the position after the machine zero offsets No.114 or
No.115 value, when No.114, No.115 setting value is 0, the machine reference point
coincides with the machine zero. The coordinates of machine reference point are No.120,
No.121 setting value. Executing machine zero return is considered to executing the
machine reference point return.
TAC-100XT has machine 2nd, 3rd, 4th reference point functions. Use separately No.122～
No.127
Command Function
G28 X(U) X returns to machine zero and Z axis remains in the previous position
G28 Z(W) Z returns to machine zero and X axis remains in the previous position
G28 in the previous positions and continuously execute the next block
G28 X(U) Z(W) X, Z return to machine zero simultaneously to set X, Z machine
coordinates of the machine 2nd, 3rd, 4th reference point.
The relationship between the machine zero, machine reference point, machine 2nd, 3rd, 4th
reference point is as follows:
Command format:
G30 P2 X(U) __ Z(W) __;
G30 P3 X(U) __ Z(W) __;
G30 P4 X(U) Z(W) ;
Command function: the tool rapidly traverses with the rapid traverse speed to the middle
point specified by X(U) , Z(W)
Command specifications: G30 is non-modal.
X: X absolute coordinate of the middle point;
U: difference value of X absolute coordinate value between the middle point and starting
point;
Z: Z absolute coordinate of the middle point;
W: difference point of Z absolute coordinate between the middle point and starting point.
Omit one or all of X(U) , Z(W) as follows:
Command Function
G30 Pn X(U) X returns to the machine nth reference point, Z axis retains
G30 Pn Z(W) Z return to the nth machine reference point, X axis retains
G30 X and Z retain, go on executing the next program block
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