GSK GSK983Ma, Руководство пользователя

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Chapter Three Programming
49
Part 1 Programming
specified by this command is registered into NC.
The operations in G28 block are shown below:
Firstly, all of the controllable axes can be positioned to the intermediate point at the rapid
traverse rate. Then, return to the reference position from the intermediate point. If the machine does
not locked in this case, the indicator of reference position may be lighted up.
In this case, position to the intermediate point and reference position equals to the G00
positioning.
The commands with simultaneous 3 axes are shown below:
G28 α ___ β ___ r ___
；
(Address α , β and r are selected from the X, Y, Z and the additional axes A, B, C, U, V and W)
The following commands can be used with the simultaneous 4 axes function:
G28 α ___ β ___ r___ δ ___
；
Wherein, α , β , r, δ = X, Y, Z, A, B, C, U, V or W
。
Generally, the G28 command is used that the tool is automatically changed the ATC.
Note 1: In G28 block, the coordinate value of move command is not only registered, but also the
coordinate value of intermediate point. Namely, the axis does not specified in G28 block, the
coordinate value in the previous G28 command which is treated as a coordinate value of an
intermediate point of that axis.
For example: N1 G90 X100.0 Y200.0 Z300.0
；
N2 G28 X400.0 Y500.0
；
N3 G28 Z600.0
；
Explanations:
N2
：
The intermediate point is (400.0, 500.0)
N3 ： The intermediate point is (400.0, 500.0, 600.0)
Note 2: After the power is turned on, the manual reference position return does not perform, and the G28
moves from the intermediate point which is same as the manual reference position return. In this
case, the move direction of intermediate point becomes the one of the reference position return by
parameter setting.
Note 3: G28 is specified by rotation axis, the move direction from intermediate point to the reference
position becomes the one of reference position by parameter setting. The movement amount is
within 360°.
3.5.8.3
ٛ
Return from the reference position automatically (G29)
G29 α ___ β ___
；
(Addresses α and β are selected from X, Y, Z and the additional axes A, B, C, U, V and W, if the
simultaneous control function of an additional axis does not select, the additional axis simultaneous
function can not be performed with any one of the others.)
Tool can be positioned at a specified point via an intermediate point based on this function.
Usually, this command followed with the G28 is used.